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Archive for the ‘volcanism’ Category

Tungurahua Eruopts, Baños Evacuated

Posted by feww on April 5, 2014

VOLCANIC HAZARD
.

City of Baños evacuated amid Tungurahua’s spectacular eruption

Tungurahua erupted on Friday, ejecting a massive plume of smoke and ash 10km into the air during a 5-minute episode.

The 5,023-m volcano has been active since 1999, and has shown signs of increased activity since February 1, 2014.

“Throat of Fire,” as it’s known in the in the local Quechua language, is one of nine or so active volcanoes in Ecuador, located about 140 km  south of the capital, Quito.

Fuente F Vásconez - OVT-IGEPNPhoto showing Tungurahua volcano eruption associated with an explosion at 18:10 (local time) on April 4, 2014. Source F. Vásconez – OVT/IGEPN

Baños de Agua Santa

Baños de Agua Santa, or Baños, as it is commonly referred to, is located in central Ecuador on the northern foothills of the Tungurahua volcano. It is the second most populous city in Tungurahua Province with a population of about 10,000.

Volcano Location Map

Tungurahua
Freeze frame from a local news video clip showing Friday’s eruption.

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Sinabung Eruption Leaves 14 Dead, Thousands Evacuated

Posted by feww on February 1, 2014

Sumatra volcano in deadly eruption

Mt Sinabung Erupted three times on Saturday leaving at least 14 people dead, including a group of school children from Medan on a science trip, and three others critically injured. Authorities were again forced to evacuate tens of thousands of people from 16 villages from the 5km – 7km exclusion zone near the volcano.

“This is the first direct impact of the Mt. Sinabung eruptions. Before the Saturday incident, the ongoing eruptions have already claimed the lives of 31 evacuees, as a result of various illnesses such as breathing difficulties, depression, asthma and hypertension.” Jakarta Post reported.

Some 14,000 of more than 30,000 evacuees had just been allowed to return home on Friday, following earlier eruptions.

Sinabung-01022014 -antara news
Villagers flee as Mt Sinabung spews plumes of hot ash and smoke engulfing at least 16 villages. Photo credit: ANTARA /Irwansyah Putra. Image may be subject to copyright. More images…

The volcano became restive in 2010, after more than 400 years of dormancy, and has been erupting sporadically since.


Approximate location of Sinabung is marked  on the map by FEWW.
Mount Sinabung is one of Indonesia’s 130  active volcanoes

Sinabung Volcano: Summary of Details

Country: Indonesia
Region: Sumatra
Volcano Type: Stratovolcano
Volcano Status: Holocene
Last Known Eruption: Unknown [1600?]
Summit Elevation: 2,460
m
Latitude: 3.17°N
Longitude: 98.392°E
Source: GVP

Sinabung is located in Group K Volcanoes


Map of Volcanoes.
Background Map: University of Michigan. Designed and enhanced by Fire Earth Blog. Click image to enlarge.

The PVMBG categorizes Sinabung as a type A volcano, or those that have erupted since 1600. Type B volcanoes have not erupted since 1600 but show signs of activity, and type C are those that have not erupted in recorded history.

Indonesian Volcanoes

Indonesian Volcanoes have been responsible for a number of cataclysmic explosions in modern history.

Karakatoa
An 1888 lithograph of the 1883 violent explosion of Krakatau.

Based on their models, our colleagues at EDRO forecast that volcanic activity on the island of Sumatra could cause the collapse of Singapore. However, they have not disclosed any further detail.

mt sinabung
Mt Sinabung erupted explosively again on November 12, 2013 for a second time in 9 days. Image credit: CRIonLine via Xinhua. More images…

Chronology of Recent Eruptions

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Mass Evacuations as Sinabung Erupts Again

Posted by feww on January 8, 2014

Mount Sinabung Continues to Eject Volcanic Materials into the Air

Some 22,000 people living near Sinabung volcano have been evacuated Since Monday after the volcano erupted in North Sumatra, Indonesia.

The volcano is spewing columns of ash and smoke up to 4.5km above the summit crater, authorities said.

sinabung 7jan14
About 22,000 people have been evacuated near Mt Sinabung as the volcano continues to erupt. Mount Sinabung has been ejecting columns of ash and smoke up to 4.5km above the summit crater since Saturday. More than 60 pyroclastic flows extending up to 5 km from the crater have also been recorded. Photo credit: Agung Kuncahya B./Xinhua.  More images…

“The National Disaster Mitigation Agency (BNPB) has instructed all relevant ministries, government institutions, local disaster mitigation agencies and the Karo regency administration in North Sumatra to prepare for a worst-case scenario following an increase in Mount Sinabung’s volcanic activity during the past week,” said a report.

The “worst-case scenario” comes into if the exclusion zone is extended from its latest 7km radius, southeast slope of the volcano, to between 7.5 and 10 km from the crater.

More than 60 pyroclastic flows extending up to 5 km from the crater have been recorded with the flow volume increasing every day, said The National Disaster Mitigation Agency (BNPB).

The volume of volcanic material ejected so far is about a quarter of the total 2,540,000 cubic meters formed in Mt. Sinabung’s crater. “This means that the pyroclastic potential stored in the volcano’s lava dome is still substantial; so if it should all come out, the threat would be devastating,” Jakarta post quoted an official as saying.


Approximate location of Sinabung is marked  on the map by FEWW.
Mount Sinabung is one of Indonesia’s 130  active volcanoes

Sinabung Volcano: Summary of Details

Country: Indonesia
Region: Sumatra
Volcano Type: Stratovolcano
Volcano Status: Holocene
Last Known Eruption: Unknown [1600?]
Summit Elevation: 2,460
m
Latitude: 3.17°N
Longitude: 98.392°E
Source: GVP

Sinabung is located in Group K Volcanoes


Map of Volcanoes.
Background Map: University of Michigan. Designed and enhanced by Fire Earth Blog. Click image to enlarge.

The PVMBG categorizes Sinabung as a type A volcano, or those that have erupted since 1600. Type B volcanoes have not erupted since 1600 but show signs of activity, and type C are those that have not erupted in recorded history.

Indonesian Volcanoes

Indonesian Volcanoes have been responsible for a number of cataclysmic explosions in modern history.

Karakatoa
An 1888 lithograph of the 1883 violent explosion of Krakatau.

Based on their models, our colleagues at EDRO forecast that volcanic activity on the island of Sumatra could cause the collapse of Singapore. However, they have not disclosed any further detail.

Chronology of Recent Eruptions

Posted in Global Disaster watch, global disasters, Significant Event Imagery, significant events, Volcanic Activity Report, volcanic event, volcanism, volcanism report, volcano alert | Tagged: , , , , , , , | Leave a Comment »

Mass Evacuation Ordered as Mt SINABUNG Put on Red Alert

Posted by feww on November 24, 2013

18,000 people evacuated as Sinabung activity intensifies

Mt Sinabung’s latest explosive eruption has prompted the authorities to raise the volcanic alert to the highest level, “siaga,” or “red alert,” according to Volcanology and Geological Disaster Mitigation Center.

The alert level was raised from “orange” or “level III ” to the highest level “red” or “level IV” by PVMBG on Sunday, as the authorities evacuated an additional  11,618 residents from 19 villages and expanded the evacuation zone to a 5-km exclusion  zone from 3 km previously.

“This is Sinabung’s highest level of activity. The intensity of the eruptions continues to increase,” said Hendrasto, head of PVMBG.

sinabung erupting 24nov2013
Villagers evacuate to a safe area, as Mount Sinabung ejects ash into air at Aman Teran village in Karo district, Indonesia’s North Sumatra province, November 24, 2013. Credit: Reuters/YT Haryono. More images…

As of 2 p.m. local time on Sunday, Sinabung was continuing to eject an 8-km high column of smoke and ash into the air, he said.

Some 6,000 villagers had already been evacuated from the 3-km exclusion zone, about 90 km from Medan, capital of North Sumatra province.

The North Sumatra health has distributed 180,000 face masks, medicine and 4 tons of baby formula to relief posts in Karo regency, reported Jakarta Post.

mt sinabung
Mt Sinabung erupted explosively again on November 12, 2013 for a second time in 9 days. Image credit: CRIonLine via Xinhua. More images…


Approximate location of Sinabung is marked  on the map by FEWW.
Mount Sinabung is one of Indonesia’s 130  active volcanoes

Sinabung Volcano: Summary of Details

Country: Indonesia
Region: Sumatra
Volcano Type: Stratovolcano
Volcano Status: Holocene
Last Known Eruption: Unknown [1600?]
Summit Elevation: 2,460
m
Latitude: 3.17°N
Longitude: 98.392°E
Source: GVP

Sinabung is located in Group K Volcanoes


Map of Volcanoes.
Background Map: University of Michigan. Designed and enhanced by Fire Earth Blog. Click image to enlarge.

The PVMBG categorizes Sinabung as a type A volcano, or those that have erupted since 1600. Type B volcanoes have not erupted since 1600 but show signs of activity, and type C are those that have not erupted in recorded history.


Mount Sinabung ejected tephra into the air as seen from Tanah Karo, North Sumatra, Indonesia, Friday, Sept. 3, 2010. (AP Photo/Dedy Zulkifli). Image may be subject to copyright.

Indonesian Volcanoes

Indonesian Volcanoes have been responsible for a number of cataclysmic explosions in modern history.

Karakatoa
An 1888 lithograph of the 1883 violent explosion of Krakatau.

Based on their models, our colleagues at EDRO forecast that the collapse of Singapore may occur as a result of volcanic activity on the island of Sumatra. However, they have not disclosed any further detail.

Chronology of Recent Eruptions

Posted in Significant Event Imagery, significant events, Volcanic Activity Report, volcanic eruption, volcanic hazard, volcanism, volcano, volcano alert, Volcano News | Tagged: , , , , , , , , | Leave a Comment »

Volcano Erupts in Ogasawara Islands

Posted by feww on November 21, 2013

Warning issued to Pacific shipping after volcano erupts, forming a new Island

Authorities have warned shipping in the Pacific Ocean to maintain vigilance for airborne volcanic material after a volcano erupted near one of the Ogasawara Islands, some 1,000 kilometers south of Tokyo, NHK reported Japan’s Meteorological Agency (JMA) as saying.

Japan Coast Guard has confirmed black smoke spewing out of a new land mass about 500 meters southeast of Nishinoshima island, JMA said

Video footage shows a plume of black and white smoke and steam  rising to a height of more than 600 meters above a new landmass measuring about 200 meters across.

Ogasawara - new island formed from volcanic eruption
Black and white smoke and steam rising to a height of more than 600 meters above a new 200-m long landmass created by volcanic eruption near Nishino shima, Bonin Islands, south of Japan. Screenshot from NHK news video clip.

new volcanic island
Screenshot  from NHK news video clip.

“The agency says multiple clusters of white smoke overhead suggest intermittent explosions,” said the report.

Volcanic activity created a new island which was fused to the uninhabited Nishinoshima between 1973 and 1974, the last time when eruptions occurred near the island.


Location Map of Volcano Islands, Ogasawara Islands, Japan region. Image credit: Lim Tor


Bonin Islands (aka, Ogasawara Group, in Japan).  Click Image to Enlarge.

In 2010, one of the volcanoes in the region erupted, spewing smoke and ash to a height of about about 100 meters above the sea level. The surrounding sea area changed to a greenish-yellow color with nearby areas turning cloudy.

JMA said the volcano, called Fukutokuokanoba, had erupted seven times since 1904, forming ephemeral islands (temporary land masses) on three occasions, all of which later sank below the ocean surface.

The first known ephemeral island called Shin-Iwo-jima (New Sulfur Island) was formed in 1904, and the most recent in 1986.

What the Volcano Islands Look Like


North Iwo Jima Island (Official Japanese name Kita-iōtō, but commonly known as Kita-iōjima, meaning “north sulfur island”) is the northernmost island of the Volcano Islands cluster of the Ogasawara Islands, about 1175 km south of Tokyo. Image Credit: Chisatos

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Posted in significant events, volcanic activity, Volcanic Activity Report, volcanic eruption, volcanic event, volcanic hazard, volcanism, volcanism report, volcano, volcano alert, volcano eruption, Volcano Hazard, Volcano News | Tagged: , , , , , , , | Leave a Comment »

World’s Largest Volcano?

Posted by feww on September 8, 2013

Massive Volcano Discovered in NW Pacific Ocean

Researchers have discovered an immense shield volcano on the seabed, northwest Pacific Ocean.

Tamu Massif is said to be the oldest and largest edifice of the Shatsky Rise oceanic plateau in the northwestern Pacific Ocean.

A single, immense volcano, Tamu Massif is constructed from massive lava flows that erupted from the center of volcano to form a broad, shield-like dome some 145 million years ago.

Researchers writing in the journal Nature Geoscience suggest the 310,000 km² (119,000 mi²) Tamu Massif could be the largest single volcano on Earth, comparable in size only to the Olympus Mons on Mars, believed to be the largest volcano in the Solar System.

Tamu Massif
The Tamu Massif Volcano ~ 32.5ºN, 158.4ºE

Rising 3.5km above the seabed, Massif lies about 2km below the sea, and is rooted more than 30 km into the earth’s crust on the Shatsky Rise, some 1,600 km east of Japan.

“We don’t have the data to see inside them and know their structure, but it would not surprise me to find out that there are more like Tamu out there,” said Dr Sager, one of the researchers at the University of Houston.

“Indeed, the biggest oceanic plateau is Ontong Java plateau, near the equator in the Pacific, east of the Solomons Islands. It is much bigger than Tamu—it’s the size of France.” [Tamu is nearly the size of Norway. Editor]

Key point

“One interesting angle is that there were lots of oceanic plateaus (that) erupted during the Cretaceous Period (145-65 million years ago) but we don’t see them since. Scientists would like to know why.” Sager said.

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Indonesia’s Soputan Volcano Erupts

Posted by feww on July 3, 2011

Mount Soputan, one of Sulawesi island’s most active volcanoes, erupted again on Sunday

North Sulawesi’s Soputan volcano erupted on Sunday at about 6:00 am local time, ejecting a column of volcanic gases about 6km into the air.

However, no evacuation order was issued as the volcano did not pose an immediate danger, officials said.

“They nearest residents live some eight kilometers from the mountain and so evacuation is not yet necessary [since the current evacuation zone was set at a 6km radius around the volcano, a forested area that is uninhabited,]” spokesman of the National Disaster Mitigation Agency (BNPB) said.

“Last night, at around 11 pm, the mountain entered its eruption phase,” he said.

Mt Soputan is located about 2,160 km (1,340 miles) northeast of Indonesian capital Jakarta. The volcano  had previously erupted in 2008.


Soputan volcano spews thick smoke and heat clouds in Minahasa on October 7, 2008. Source: AFP. Image may be subject to copyright.

Indonesia, which sits on the Pacific Ring of Fire, is home to 150 listed volcanoes, some 109 to 130 of which are regarded as active, according to various sources.


A Map of Listed Volcanoes of Indonesia.

Summary of Volcano Details

Country: Indonesia
Region Name: Sulawesi Island
Volcano Type: Stratovolcano
Last Known Eruption: 2008
Summit Elevation: 1,784 m    
Location
:     1.108°N, 124.73°E

Soputan on a restful day!


The small Soputan stratovolcano, seen here from the west, was constructed on the southern rim of the Quaternary Tondano caldera in northern Sulawesi Island. The youthful, largely unvegetated Soputan volcano is one of Sulawesi’s most active volcanoes. During historical time the locus of eruptions has included both the summit crater and Aeseput, a prominent NE flank vent that formed in 1906 and was the source of intermittent major lava flows until 1924. Photo (undated) by Agus Solihin (Volcanological Survey of Indonesia). Image and caption: GVP.

Pacific Ring of Fire

The Pacific Ring of Fire is an area of frequent siesmic activity and volcanic eruptions caused by plate tectonic movements. Encircling the basin of the Pacific Ocean, which contains oceanic trenches, volcanic arcs, and volcanic belts, the 40,000 km Ring of Fire is home to 452 volcanoes. About ninety percent of the world’s earthquakes including 80% of the world’s major earthquakes occur along the Pacific Ring of Fire.


Volcanic arcs and oceanic trenches partly encircling the Pacific Basin form the so-called Pacific Ring of Fire, a zone of frequent earthquakes and volcanic eruptions. The trenches are shown in blue-green. The volcanic island arcs, although not labeled, are parallel to, and always landward of, the trenches. For example, the island arc associated with the Aleutian Trench is represented by the long chain of volcanoes that make up the Aleutian Islands. (Source: USGS.)

Other Volcanic Activity/ Unrest

[Source: Smithsonian / USGS Weekly Volcanic Activity Report for June 22 - 28]

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Afar Triangle Volcano Erupts as Forecast

Posted by feww on June 14, 2011

Correction: Nabro Volcano in Eritrea Erupts Ejecting a 15-km Plume of Ash into the Atmosphere

Following a swarm of Earthquakes that struck within the Afar Triangle Eritrea, Ethiopia, yesterday, FIRE-EARTH said:

… there’s a strong probability that the quakes may have primed one or more regional volcanoes for eruption.

Nabro Volcano erupted around midnight Sunday local time, ejecting  a 15-km plume of ash into the air, reports said.

The volcano, which is located about 375 km southeast of the Eritrean capital Asmara, sits within the Afar Triangle, a tectonic triple junction.


Nabro volcano, Eritrea, sits close to the border with Ethiopia.  Credit: ESA/NASA.  Click image to enlarge.


Nabro eruption is captured in this photo-like image by  MODIS on the Aqua satellite on June 13, 2011. “Initial reports from news agencies and the Volcanic Ash Advisory Center in Toulouse, France, proclaimed the eruption to be occurring at Dubbi, a volcano further south. But later reports from volcanologists, field scientists, and the satellite image above appear to confirm the eruption at Nabro. There are no historical reports of eruptions at Nabro before today.” Image and caption: NASA-EO. Click image to enlarge. Download largest image (4 MB, JPG)

The fact that there was no historic record of eruption at Nabro volcano may explain why the French VAAC got it wrong initially, attributing the eruption to the Dubbi volcano – EDRO

Nabro Volcano
Country: Eritrea
Region: Northeastern Africa
Previous Known Eruption: NOT KNOWN
Summit Elevation: 2,218 m (7,277 ft)
Coordinates : 13.37°N, 41.70°E
Source: GVP

Nabro Volcano Space Shuttle image


The large caldera below and to the left of the center of this Space Shuttle photo of the Danakil Alps of Ethiopia is Nabro. The 2218-m-high Nabro stratovolcano is the highest volcano in the Danakil depression and is truncated by nested calderas 10 and 5 km in diameter. The larger caldera is widely breached to the SW. Nabro was constructed primarily of rhyolitic lava flows and pyroclastics. The 8-km-wide Mallahle caldera is at the lower left, and the dark-colored lava flows at the right are from Dubbi volcano. NASA Space Shuttle image S-61A-36, 1985. Caption: GVP


Nabro (top) and  Mallahle (bottom) volcanic calderas. This false-color topographical image of the two volcanoes was produced by NASA. Click image to enlarge.

Map of East Africa showing some of the historically active volcanoes (red triangles) and the Afar Triangle (shaded, center)— a so-called triple junction (or triple point), where three plates are pulling away from one another: the Arabian Plate, and the two parts of the African Plate (the Nubian and the Somalian) splitting along the East African Rift Zone. Source: USGS


A map showing the approximate location of Nabro and Dubbi Volcanoes. The yellow circles mark the epicenters of the recent quakes that struck the area. Red stars are the two largest shocks in the swarm measuring 5.7Mw. Click image to enlarge.

The huge ash cloud ejected by the volcano is said to be moving across the Horn of Africa, threatening air travel. The German airline Lufthansa said on Monday it had cancelled two flights, one a flight out of the Eritrean capital Asmara, and the other into Addis Ababa.

The ash plume also forced the U.S. Secretary of State Hillary Clinton to curtail her visit to the region. Ironically, Obama was forced to abandon his visit to Ireland when Iceland’s Grímsvötn volcano erupted last month.

News Links

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Updated on June 14, 2011 at 07:58UTC by EDRO
Updated on June 14, 2011 @ 12:01UTC by FEWW

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Earthquake Swarm Rattles Buller Mountain

Posted by feww on May 1, 2011

Hundreds of small- to medium-sized quakes strike near Hawthorne, Nevada


A large swarm of earthquakes has rattled the Buller Mountain area near Hawthorne, Nevada since March 5, 2010. At least 400 small- and medium-sized earthquakes measuring between M1.0 and M4.6 have struck a 10 sq km area since April 10., NASA-EO reported.  “This map shows earthquake locations (white circles) from March 5, 2011, through the early morning of April 27, superimposed on a natural-color satellite image from September 19, 2002…  Several abandoned mines are visible as bright scars on the landscape, and the lava flows of Mud Springs Volcano are dark gray. The image was acquired by the Enhanced Thematic Mapper Plus (ETM+) aboard Landsat 7. ” The earthquake swarm is said to be tectonic in origin. Source: NASA-EO. Click image to enlarge.  Download largest image (3 MB, JPEG) 

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Mount St. Helens: “The Ides of March?”

Posted by feww on February 17, 2011

VolcanoWatch Weekly [17 Feb 2011]

Shinmoedake Update:

Some 2,500 people living near Shinmoedake volcano on Japan’s Kyushu island were advised earlier today to evacuate their homes after heavy rain threatened lahar avalanches, reports say.

VoW: Mount St. Helens


Mount St. Helens and Spirit Lake, as seen from Bear Cove. Image Source: U.S. Forest Service via USGS/CVO.


Phreatic eruption of Mount St. Helens, March 28, 1980, as seen from the north. Image by C.Dan Miller, USGS/CVO

Mount St. Helens, Washington  Ash Plume Path May 18, 1980


Click image to enlarge.

Mount St. Helens Volcano
Position: 46°12′ N 122°10’48″ W,
Summit Elevation: 2,549 m (8,363 ft )
Current Volcano Alert Level: NORMAL
Current Aviation Color Code: GREEN
Source: USGS/CVO

Recent observations:

An M4.3 earthquake struck the Mount St. Helens region this morning, 14 February 2011, at 10:35 a.m. PST (18:35 UTC) and was felt widely through southwestern Washington and Northwestern Oregon (http://earthquake.usgs.gov/earthquakes/dyfi/events/uw/02141835/us/index.html). Its exact magnitude may change by a few tenths from this value as records are further analyzed. The earthquake was followed by several aftershocks up to M2.8 over the next few hours (http://www.pnsn.org/recenteqs/latest.htm), the three largest of which were also reported felt. All of the earthquakes are located in an area about 8 kilometers (5 miles) north of the crater of Mount St. Helens, near the Johnston Ridge Observatory, at a depth of about 4 to 6 kilometers (2.5 to 4 miles).

Today’s earthquakes are in the same place as a small swarm that took place about two weeks earlier, on 29 January. These earthquakes are reminiscent of a swarm that took place about 30 years ago, when a swarm of small earthquakes began in August 1980, a few miles northwest of today’s activity. The 1980-1981 sequence climaxed with an M5.5 earthquake on 14 February 1981. Analysis of the 1981 events suggested that they occurred along existing faults in the Mount St. Helens seismic zone, a northwest to southeast trending system of faults in which Mount St. Helens lies. The Mount St. Helens seismic zone exhibits strike-slip motion, with the southwestern rocks slipping horizontally northwest relative to the rocks northeast of the fault zone. The fault zone likely exerts control on the location of Mount St. Helens volcano. Studies following the 1980 eruption suggested that the magma removed during the May 1980 eruption and subsequent lava-dome building caused faults along the seismic zone to slip in response to the magma withdrawal. Similar interaction of volcanic activity and tectonic fault movement is possible in the case of today’s earthquakes, but at present there appears to be no signs of unrest in the volcanic system.  USGS/Cascades Volcano Observatory, Vancouver, Washington

Summary of Weekly Volcanic Activity Report – 9 February to 15 February 2011

[Source: SI/USGS]

New Activity/Unrest:

Map of Volcanoes


Map of Volcanoes.
Background Map: University of Michigan. Designed and enhanced by Fire Earth Blog. Click image to enlarge.

Ongoing Activity:

For additional information, see source.

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FEWW Volcanic Activity Forecast

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Japan’s Shinmoedake volcano erupts for a 2nd day

Posted by feww on January 27, 2011

Mt Shinmoedake continued to eject tephra Thursday

Shinmoedake volcano in southern Japan, which began erupting on Wednesday, ejecting rocks, ash and smoke about 4,600m  into the air, was still erupting on Thursday.

Local highways and railroads have become impassable as a result, and at least 4 flights to the area have been canceled as a precaution, reports say.


Shinmoedake volcano continued erupting for a second day on Thursday. Freeze frame from ITN news clip.

Shinmoedake Volcano Erupts


Natural-color satellite image of Shinmoedake volcano  captured by MODIS aboard NASA’s
Terra satellite on January 26, 2011. Shinmoedake is a volcano in the Kirishima volcanic complex on Japan’s Kyushu island. Source: NASA-EO. Click image to enlarge.


Lightening is photographed using time exposure during an eruption from Mt Shinmoedake in the Kirishima volcanic complex on the border of Kagoshima and Miyazaki prefectures, southern Japan. Photo:  Shuji Uchimura/AP. Image may be subject to copyrights.

Video Clips

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Mt. Etna Erupts

Posted by feww on January 15, 2011

Europe’s largest and most active volcano lights up the Sicilian night with a fountain and cascade of lava


The massive Mt Etna erupts. Image credit: ANSA. Image may be subject to copyright.


Mt Etna, Europe’s largest and most active volcano,  rumbled spewing ash and steam into the air on January 11 when
MODIS on NASA’s Terra satellite captured the above image of the east coast of Sicily featuring the 3,350-meter-high volcano’s unrest, a day before it erupted. Source: NASA-EO. Click image to enlarge. Download larger image (3 MB, JPEG)


A plume of sulfur dioxide from Mt Etna is being carried over the Mediterranean Sea. Image was acquired by the AIRS on NASA’s EOS-AQUA satellite. Click image to enlarge.

Volcano Links:

FEWW Volcanic Activity Forecast

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33 volcanic tremors rock Mt. Bulusan

Posted by feww on November 22, 2010

Bulusan ejects a 2-km column of ash and steam into the air

At least 500 families have been evacuated from areas near the volcano. About 3,000 families (15,000 people) in 18 villages have so far been affected by the ash eruptions.

Mt. Bulusan remains under Alert Level 1 that prohibits the public from entering  the 4-km radius of the Permanent Danger Zone (PDZ).

Meanwhile the  municipal council in the town of Sorsogon has declared “a state of calamity” following  repeated ash eruptions from Bulusan Volcano and threats of lahars and  pyroclastic flows into the local rivers.

The ash explosions from  Bulusan Volcano has already “affected Barangays (villages) Cogon, Monbon, Tinampo, Bolos, Gulang-Gulang, Bagsangan, Mapaso and Gabao and the rivers of Patag and Cadac-an in this town,” according to a report.


Mount Bulusan ash explosions shower Sorsogon town in Bicol region south of Manila, Philippines on 21 November 2010. Photo credit:  EPA/ALDRIN RECEBIDO. Image may be subject to copyright.

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Latest Entries on Mt Merapi

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Arabia Lucky Last Time

Posted by feww on September 27, 2010

Will Arabia Be So Lucky Next Time?

A swarm of at least 30,000 tremors  that struck Harrat Lunayyir, an ancient  lava field in western Arabia, between April and June 2009 was a ‘failed eruption,’ US and Arabian geologists say.


An aerial view of one of the volcanoes in the Al-Aayiss area.

Based on the ground deformation satellite data, depth and signature of the shockwaves, the researchers have concluded that the seismic activity was related to a ‘failed volcanic eruption.’ They say magma has now moved very  close to the surface, increasing the probability of an eruption.

The Arabian peninsula’s western side comprises lava fields [harrat] measuring up to 200,000 square kilometers, which were formed over the past 30 million years, after Arabia split from Africa.


Fissures formed when the earthquake swarm struck Harrat Lunayyir, western Arabia, between April and June 2009. Image source: Arabian media.  Image may be subject to copyright.

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Sinabung Erupts Again

Posted by feww on August 30, 2010

Mount Sinabung 2nd eruption ‘more powerful’

Sinabung spewed ash to a height of about 2km in its second eruption in two days


Mount Sinabung volcano spews smoke in Suka Nalu village in the district of Tanah Karo, in Indonesia’s North Sumatra province August 30, 2010. The Indonesian volcano that erupted for the first time in centuries on Sunday spewed fresh plumes of smoke early on Monday morning, causing panic in nearby villages and delaying local flights, officials said on Monday.  Credit: Reuters/Tarmizy Harva. Image may be subject to copyright.  More photos …

According to Indonesia’s head volcanologist, Surono, Today’s eruption was more powerful than the first yesterday.

“Earlier today was another eruption at 6.30 a.m., sending out smoke as high as two km, more or less.” He said.

“I saw some hot pieces of volcanic rock come out and burn trees in the area,” A Reuters photographer said

“People have been evacuated from areas within a six km (four-mile) radius of the volcano,” vulcanologist Surono said. “Beyond six km it is safe, but there has still been a lot of panic among people here who don’t understand that.”

He said it was impossible to know when the eruptions would stop, but it was unlikely volcanic dust would drift to neighboring countries.

“Here, [the volcanic dash]  is three millimeters (1/8 of an inch) thick on the leaves of plants,” he said, adding that he did not believe the neighboring countries would be affected as a result of this eruptive episode.

Our colleagues at EDRO believe that the collapse of Singapore may occur as a result of volcanic activity on the island of Sumatra. However, they have not disclosed any further detail.

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Mount Sinabung Erupts

Posted by feww on August 29, 2010

Lava spewing ‘like a ball of fire’

Indonesian officials have issued a red alert after Mount Sinabung on the island of Sumatra began spewing lava early Sunday morning.


Villagers ride a motorcycle while covering their mouths at the district of Tanah Karo outside the city of Medan, North Sumatra, as the Mount Sinabung volcano spews smoke in the background August 28, 2010.  Credit: Reuters/Tarmizy Harva. Image may be subject to copyright.

The volcano had been spewing smoke and ash to a height of about 1.5km a.s.l. throughout Saturday, local reports said, quoting  eye witnesses who saw lava spewing out of the volcano from 7 km away.

The authorities have evacuated up to 15,000 residents living near the volcano.

Mount Sinabung is one of Indonesia’s 130  active volcanoes, and had last erupted about 400 years ago.

The head of Indonesia’s vulcanology center was quoted by Reuters as saying:

“This is the first time since 1600 that Sinabung erupted [although there are no activities recorded] and we have little knowledge in terms on its eruptive patterns and general forms.”


The conical Sinabung volcano, seen here from the east, rises above farmlands on the Kato Plateau. Gunung Sinabung contains four summit craters, the southernmost of which is the youngest. Many prominent lava flows appear on the flanks of the volcano. No confirmed historical eruptions are known from Gunung Sinabung. Photo by Tom Casadevall, 1987 (U.S. Geological Survey). Caption: GVP

Sinabung Volcano: Summary of Details

Country: Indonesia
Region: Sumatra
Volcano Type: Stratovolcano
Volcano Status: Holocene
Last Known Eruption: Unknown [1600?]
Summit Elevation: 2,460
m
Latitude: 3.17°N
Longitude: 98.392°E
Source: GVP

Sinabung is located in Group K Volcanoes


Map of Volcanoes.
Background Map: University of Michigan. Designed and enhanced by Fire Earth Blog. Click image to enlarge.


Sinabung volcano, seen from Gurukinayan village on the south, shows prominent lava flows on its flanks and a dramatic summit spine. The summit of Gunung Sinabung is much less frequently visited than neighboring Sabayak volcano to the NE. Photo by S. Wikartadipura, 1982 (Volcanological Survey of Indonesia). Source: GVP.


Approximate location of Sinabung is marked  on the map by FEWW.

The volcano is located about 260km east of the epicenter of the 9.1 – 9.3Mw earthquake which struck off the coast of Sumatra on December 26, 2004, triggering the deadly Boxing Day Tsunami.

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VolcanoWatch Weekly [16 July 2010]

Posted by feww on July 16, 2010

Manam Volcano Puffs Out a Small Plume


Manam Volcano released a small plume on June 16, 2010, which was captured by ALI on NASA’s EO-1 satellite.  Source: NASA E/O.

The 1,807-m Manam, one of Papua New Guinea most active volcanoes, last erupted in 2009, is a  basaltic-andesitic stratovolcano forming a 10-km wide island, located about 13km off the coast of mainland PNG.

“Frequent historical eruptions, typically of mild-to-moderate scale, have been recorded at Manam since 1616. Occasional larger eruptions have produced pyroclastic flows and lava flows that reached flat-lying coastal areas and entered the sea, sometimes impacting populated areas.” —GVP.

Summary of Weekly Volcanic Activity Report

[Source: SI/USGS]

New Activity/Unrest (7 July – 13 July 2010)

NOTE: Based on Fire-Earth Model, more volcanic activity/unrest may be expected in areas/groups shown in red.

Map of Volcanoes. Background Map: University of Michigan. Designed and enhanced by Fire Earth Blog. Click image to enlarge.

Ongoing Activity:

For additional information, see source.

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VolcanoWatch Weekly [9 July 2010]

Posted by feww on July 9, 2010

Summary of Weekly Volcanic Activity Report

[Source: SI/USGS]

New Activity/Unrest (30 June – 6 July 2010)

  • Ebeko, Paramushir Island  [Group J]
  • Gorely, Southern Kamchatka (Russia) –  [Group J]
  • Tiatia, Kunashir Island [Group J]
  • Ulawun, New Britain [Group K]

NOTE: Based on Fire-Earth Model, more volcanic activity/unrest may be expected in areas/groups shown in red.


Map of Volcanoes. Background Map: University of Michigan. Designed and enhanced by Fire Earth Blog. Click image to enlarge.

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VolcanoWatch Weekly [2 July 2010]

Posted by feww on July 2, 2010

Summary of Weekly Volcanic Activity Report

[Source: SI/USGS]

New Activity/Unrest (23 June – 29 June 2010)

  • Gorely, Southern Kamchatka (Russia) –  [Group J]
  • Pagan, Mariana Islands (Central Pacific) – [Group L]
  • Tungurahua, Ecuador [Group D]
  • Ulawun, New Britain   [Group K]

NOTE: More volcanic activity/unrest may be expected in areas/groups shown in red.


Map of Volcanoes. Background Map: University of Michigan. Designed and enhanced by Fire Earth Blog. Click image to enlarge.

Ongoing Activity:

For additional information, see source.

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    VolcanoWatch [19 June 2010]

    Posted by feww on June 19, 2010

    Manam Volcano Exhales a Faint Plume


    Manam Volcano released a faint plume on June 16, 2010. Image  acquired by ALI on NASA’s EO-1 satellite. Located about 13 kilometers off the coast of mainland Papua New Guinea, the 1,807m high Manam forms a 10-km wide island and two summit craters. Source: NASA E/O.
    Click image to enlarge. Download large image (4 MB, JPEG)

    Summary of Weekly Volcanic Activity Report

    [Source: SI/USGS]

    New Activity/Unrest (9 June – 15 June 2010)


    Map of Volcanoes. Background Map: University of Michigan. Designed and enhanced by Fire Earth Blog. Click image to enlarge.

    Ongoing Activity:

    For additional information, see source.

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    Recent Volcanic Activity – Satellite Images

    Posted by feww on June 11, 2010

    Plume Spewed by Ulawun Volcano

    Ulawun Volcano located  on Papua New Guinea (PNG) island of New Britain spewed a plume of steam and ash on June 10, 2010. The above is a  natural-color image captured by ALIon NASA’s EO-1 satellite on the same day.


    Ulawun is one of the most active volcanoes in PNG and has repeatedly erupted producing large lava and pyroclastic flows over the past 40 years. Image Source: NASA E/O. Click images to enlarge.

    Ulawun Volcano (Father) and Bamus Volcano (Son)

    Summit Elevation:    2,334 m
    Coordinates: 5.05°S, 151.33°E


    Ulawun and Bamus volcano (upper left) are the two highest volcanoes of the Bismarck arc, and are known as the Father and South Son volcanoes. The peak to the left of the summit is a prominent E-W-trending escarpment on the south side that may result from large-scale slumping. Historical eruptions date back to the beginning of the 18th century. Photo by Wally Johnson (Australia Bureau of Mineral Resources). Caption: GVP.

    Klyuchevskaya Volcano Signals New Round of Activity


    Protruding from clouds, the summit of Klyuchevskaya Volcano located on Kamchatka Peninsula (Russia)  released a small plume on June 7, 2010. Natural-color image acquired by ALI on NASA’s EO-1Download large image (924 KB, JPEG) satellite the same day. “A faint brown-gray plume blows toward the north (image right), contrasting with the bright clouds below.” Source: NASA E/O.

    6,000-year-old Kliuchevskoi:  Kamchatka’s highest and most active volcano

    Summit Elevation: 4,835m
    Coordinates: 56.057°N, 160.638°E


    The 4,835-m-high basaltic stratovolcano has produced frequent moderate-volume explosive and effusive eruptions without major periods of inactivity. More than 100 flank eruptions have occurred during the past roughly 3,000 years, with most lateral craters and cones occurring on the NE (seen here) and SE flanks of the conical volcano at altitudes of 500-3,600 m. Photo by E.Y. Zhdanova (courtesy of Oleg Volynets, Institute of Volcanology, Petropavlovsk). Source: GVP.

    Grouping on the Global Map

    Map of Volcanoes


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    VolcanoWatch [10 June 2010]

    Posted by msrb on June 10, 2010

    Summary of Weekly Volcanic Activity Report

    [Source: SI/USGS]

    New Activity/Unrest (2 June – 8 June 2010)

    • Bezymianny, Central Kamchatka (Russia)  [Group J]
    • Cleveland, Chuginadak Island  [Group H]
    • Pacaya, Guatemala  [Group F]
    • Taal, Luzon   [Group K]
    • Tiatia, Kunashir Island (Kuril Islands, Russia)   [Group J]
    • Tungurahua, Ecuador  [Group D]
    • Ulawun, New Britain [Group K]


    Map of Volcanoes. Background Map: University of Michigan. Designed and enhanced by Fire Earth Blog. Click image to enlarge.

    Ongoing Volcanic Activity:

    For additional information, see source.

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    Taal Volcano Alert Raised to Level 2 ‎

    Posted by feww on June 8, 2010

    Taal Volcano on Alert Level 2

    The Philippine Institute of Volcanology and Seismology (Phivolcs) has just raised the alert level of Taal Volcano from Level 1 to Level 2.

    The volcano has shown increased seismic activity since late April, said Allan Loza of the Phivolcs Taal Volcano Observatory.

    Phivolcs recorded 2 high frequency volcanic earthquakes over the past 24 hours and reported an increase in the size of earthquakes over the period.

    “Initial result of precise leveling survey conducted yesterday at the southeast side of the volcano island showed further inflation by 3.0mm, ” Phivolcs said.

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    Eyjafjallajökull Eruption – Update MAY 2

    Posted by feww on May 2, 2010

    Eyjafjallajökull Quietly Erupting

    Volcanic Activity Report: May 02, 2010

    Icelandic Met Office reported plume elevations and lava discharge levels close to the average activity during the past week. Lava is till flowing in a northerly direction from the crater and cascading  down the Gígjökull glacier. “Today’s explosive activity and ash production represents a fraction of conditions during the height of the eruption (14-17 April). Presently, there are no measurable indications that the eruption is about to end.”

    See also joint  Status Report released by Icelandic Meteorological Office and Institute of Earth Sciences, University of Iceland (PDF file).

    No new photo was available, as of posting,  neither at the Institute of Earth Sciences nor Icelandic Met Office websites, presumably to prevent commercial exploitation [sic.]

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    Posted in Gígjökull glacier, Iceland volcano, volcanism, volcano, Volcano Status | Tagged: , | Leave a Comment »

    Klyuchevskaya Erupting Until Further Notice!

    Posted by feww on April 10, 2010

    Serial No  1,556. Starting April 2010, each entry on this blog has a unique serial number. If any of the numbers are missing, it may mean that the corresponding entry has been blocked by the authorities/Google in your country. Please drop us a line if you detect any anomaly/missing number(s).

    Volcanoes and Glaciers Don’t Mix

    Satellite Images of Klyuchevskaya Volcano

    The 4,750-meter Klyuchevskaya is the highest and most active volcano on Kamchatka Peninsula, NE Russia.


    Klyuchevskaya Volcano is still erupting. Natural-color satellite image by MODIS was acquired April 7, 2010.   A plume of ash about 370 meters was reported above the crater summit.  The dark tint seen on the lower slopes of the Shiveluch Volcano, located to the northeast of Klyuchevskaya, is ash deposits from an earlier eruption. Source: NASA/EO.


    A plume towered above the summit of Klyuchevskaya Volcano on Russia’s Kamchatka Peninsula on February 13, 2010, when the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA’s Terra satellite captured this false-color image. Directly over the summit, the plume is bright white, suggesting more steam than ash. The steep, cone-shaped volcano was shrouded in snow, and the rugged terrain was being illuminated from the south, which created dramatic shadows to the north and west. Both the mountain itself and the plume are casting a shadow (brown area) on the western and northern flanks of the volcano. Within this shadow, black rivulets of lava are visible on the northwest slopes. (Date: 13 February 2010). Image and caption: NASA


    Klyuchevskaya’s most recent phase of eruptive activity began in January 2005. On February 21, the Kamchatkan Volcanic Eruption Response Team reported a lava flow down the northern flank of the volcano that melted a large portion of the Ehrman Glacier, the largest of several small glaciers capping the summit and flanks of the volcano. Image captured by ASTER  on NASA’s Terra satellite February 24, 2004. Source: NASA/EO.

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