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Posted by feww on August 30, 2013
Cloud formations over South Pacific, Indian and Southern Oceans, August 30, 2013 at 12:00UTC. Source: MTSAT-2/Digital Typhoon.
Posted in Pacific Ring of Fire | Tagged: Cloud Formation, cloud pattern, Indian Ocean, Sky Photos, south pacific ocean, Spiral Cloud Formation | Leave a Comment »
Posted by feww on December 23, 2010
Spiral Cloud Formation Off the Coasts of Alaska and BC Canada. GOES 11 Satellite Image Saved at 03:00UTC on December 23, 2010.
Click images to enlarge.
Posted in North Pacific Ocean, Pacific Ring of Fire, Spiral Cloud Formation, Triple Spiral Cloud Pattern | Tagged: coast of alaska, coast of BC, pacific coast of canada, Sky Photos | Leave a Comment »
Posted by feww on November 27, 2010
Spiral cloud formation over the North Pacific Ocean on November 26, 2010 at 3:00UTC. Source: MTSAT-1R/Digital Typhoon.
Spiral cloud forming simultaneously over the South Pacific Ocean on November 26, 2010 at 3:00UTC. Source: MTSAT-1R/Digital Typhoon.
Full view. Click image to enlarge.
Posted in cloud pattern, environment, Pacific Ring of Fire | Tagged: North and South Pacific Ocean, North Pacific Ocean, south pacific ocean, Spiral Cloud Formation | 1 Comment »
Posted by feww on March 10, 2010
The Chilean M8.8 megaquake that struck offshore Maule region on 27 February, was a “complicated rupture process” scientists at the GFZ German Research Center for Geosciences say.
Quakes of this magnitude break the entire Earth’s crust, they said. “After closer analysis of the seismic waves radiated by this earthquake during the first 134 seconds after start of the rupture, the researchers came to the conclusion that only the region around the actual epicenter was active during the first minutes. In the second minute the active zone moved north towards Santiago. After that the region south of Concepción became active for a short time. This rupturing trend agrees well with the distribution of the aftershocks during the following three days, as observed by the GEOFON-measuring network of the GFZ up to 03.03.2010.”
Rupture Propagation After Southern Chile’s Maule Earthquake. © GFZ. Click Image to Enlarge.
In 1960, the largest ever instrumentally-recorded earthquake, which measured magnitude 9.5, originated at Valdivia, south of the Maule region. “The quake of 27 February connects directly to the rupture process of Valdivia,” said Professor Jochen Zschau, Director of Earthquake Risk and Early Warning Section at the GFZ. “With this, one of the last two seismic gaps along the west coast of South America might now be closed. With the exception of one last section, found in North Chile, the entire earth crust before the west coast of South America has been ruptured within the last 150 years.”
The Nazca plate which forms a part of the Pacific Ocean Floor moves eastwards at about 70mm per year, subducting the South American plate. Thus producing very powerful earthquakes in the region. “In the course of about one century, the Earth’s ruptures completely in a number of strong quakes from Patagonia in the South to Panama in the North. Even Darwin reported, in his diary, of the strong earthquake in Concepción on 20 February 1835 and the resulting Tsunami.”
Chile Earthquake History. © GFZ. Click Image to Enlarge.
GFZ researchers have reportedly studied the collision of the Nazca plate and the South American Plate since 1994. “As a result of numerous expeditions and measuring campaigns in this area this Potsdam Helmholtz Centre avails of the probably the most dense data record on such a subduction zone. “Within the framework of the DFG Priority Programme “Deformation processes in the Andes”, and with the Geotechnology Project TIPTEQ we have just been able to collect a unique data record for the southern part of the Andes” says Professor Onno Oncken, Director of the Department Geodynamics and Geomaterials at the GFZ, and leader of these studies. The current quake puts us in the position to precisely compare the tectonics before and afterwards, a unique situation both internationally and in Earth science.”
GFZ is operating the Plate Boundary Observatory (PBO) in northern Chile, which they’ll hand over to Chilean researchers on 15 March 15, 2010.
Related Links:
Posted in chile tsunami, Nazca Plate, Pacific Ring of Fire, South American plate, tsunami | Tagged: Chile Quake, DARWIN, Earth's crust, GFZ German Research Center for Geosciences, MAULE quake, Patagonia, Valdivia | 2 Comments »
Posted by feww on October 25, 2009
Latitude: 49.35°N 49°21’0″N
Longitude: 154.70°E 154°42’0″E
The huge Tao-Rusyr caldera on southern Onekotan Island is one of the most spectacular volcanoes of the Kuril Islands off the southern tip of Russia’s Kamchatka Peninsula. The 7.5-km-wide caldera was formed about 7500 years ago during a catastrophic volcanic eruption, one of the largest Holocene eruptions in the Kuril Islands. Today, the basaltic-to-andesitic ancient Tao-Rusyr Caldera is filled by the deep blue waters of Kal’tsevoe Lake, whose surface is 400 m above sea level.
A large symmetrical post-caldera cone, 1325-m-high andesitic Krenitzyn Peak, forms a 4-km wide island that towers high above the caldera rim and fills the NW portion of the caldera lake. A 350-m-wide, 100-m-deep crater truncates the peak and a large lateral crater is located on the upper NE side.
The Advanced Land Imager (ALI) on NASA’s Earth Observing-1 (EO-1) satellite acquired this true-color image of southern Onekotan on June 10, 2009. In this late-spring shot, snow or ice lingers on the land, forming white streaks on a brown-and-green land surface. In the northwest quadrant of the caldera is Krenitzyn Peak, which rises to a height of 1,325 meters (4,347 feet).
Like the other Kuril Islands, Onekotan lies along the Pacific Ring of Fire. The Kuril Island volcanoes are fueled by magma generated by the subduction of the Pacific Plate under the Eurasian Plate, which takes place along a deep trench about 200 kilometers (120 miles) to the islands’ east. The only historical eruption at Krenitzyn Peak occurred in 1952, a week after a magnitude 9.0 earthquake along the subduction fault.
NASA Earth Observatory image created by Robert Simmon, using EO-1 ALI data provided courtesy of the NASA EO-1 team. Caption by Michon Scott and Rebecca Lindsey. [Additional information from GVP. Edited by FEWW]
A large symmetrical post-caldera cone, 1325-m-high Krenitzyn Peak, forms a 4-km wide island that towers above the rim of 7.5-km-wide Tao-Rusyr caldera. A 350-m-wide crater caps the peak, and a large shallow lateral crater (left center) is located on the upper NE flank. The small dark mass along the eastern shoreline (right-center) is a lava dome that was emplaced in 1952 during the only historical eruption of the volcano. Kal’tsevoe lake fills a caldera that was formed about 7500 years ago during one of the largest Holocene eruptions in the Kuril Islands. Photo by Oleg Volynets (Institute of Volcanology, Petropavlovsk). Caption: GVP.
Related Links:
Posted in Eurasian Plate, Holocene eruption, Kal’tsevoe Lake, Krenitzyn Peak, Pacific Plate, Pacific Ring of Fire | Tagged: Kamchatka peninsula, KURIL ISLANDS, Onekotan Island, Russia, Tao-Rusyr Caldera | 1 Comment »
Posted by feww on October 8, 2009
Powerful earthquake measuring up to 7.1 Mw Struck Celebes Sea, SE of Jolo, Sulu Archipelago, Philippines, on Wednesday, October 07, 2009 at 21:41 UTC at a depth of about 580km.
The event followed another powerful earthquake that struck Moro Gulf (Mindanao, Philippines), on Sunday, October 04, 2009.
On September 18, 2009, after a 5.5 Mw quakes struck south of Mindanao, FEWW forecast additional, more powerful, earthquakes for the region.
See: Latest Earthquakes Magnitude 5.5 + for FEWW Forecast.
Earthquake Location Map. Source: USGS/EHP. Enhanced by FEWW
Earthquake Details:
Related Links:
Recent Human Enhanced Disasters Asia-Pacific
See also:
Posted in earthquake forecast, Earthquakes, feww earthquake forecast, Pacific Ring of Fire | Tagged: Celebes Sea quake, Jolo quake, jolo volcano, MINDANAO, Mindanao quake, Moro Gulf quake, Philippines, Philippines quake, Sulu Archipelago, Zamboanga | 3 Comments »
Posted by feww on October 3, 2009
Previous Updates:
Up to 4,000 people (figure provided by UN officials) are feared trapped under hundreds of thousands of tons of rubble after a magnitude 7.9 quake destroyed more than 25,000 houses and buildings across seven districts on a 100-km stretch along the western coast of Sumatra island, Indonesia on September 30, 2009.
“We estimate there are still eight people trapped alive under Ambacang Hotel. We are still trying hard to evacuate them,” a rescuer told reporters, in Padang.
Indonesians look at bodies from under a cloth barrier after they were pulled from the rubble of buildings, at a hospital in the Sumatran Island city of Pedang, Indonesia, Friday, Oct. 2, 2009. Medical teams, search dogs, backhoes and emergency supplies were flown into the devastated western coast of Indonesia’s Sumatra island Friday to bolster frantic rescue attempts for thousands buried by a powerful earthquake. (AP Photo/Kevin Frayer). Image may be subject to copyright.
An Indonesian man climbs down from a house that collapsed on top of a car in Wednesday’s earthquake ,in Padang, Indonesia, Friday, Oct. 2, 2009. Medical teams, search dogs, backhoes and emergency supplies were flown into the devastated western coast of Indonesia’s Sumatra island Friday to bolster frantic rescue attempts for thousands buried by a powerful earthquake. (AP Photo/Kevin Frayer). Image may be subject to copyright.
Situation in the Disaster Areas:
Related Links:
Posted in largest earthquakes, Pacific Ring of Fire, Pariaman District, Powerful earthquakes, Seismic Hazard | Tagged: Earthquakes, human-enhanced disasters, Indonesia quake, Padang Quake, sumatra quake | 1 Comment »
Posted by feww on July 12, 2009
U.S. Geological Survey reported a magnitude 6.1 earthquake in southern Peru early Sunday. The quake epicenter was located about 60 km NNW of Juliaca, Peru, some 785 km ESE of the capital city of Lima.
There were no immediate reports of structural damage or injuries caused by the quake, which struck at a depth of about 200km.
Earthquake Location. Source: USGS
Earthquake Details:
Other Maps:
Major Tectonic Boundaries: Subduction Zones -purple, Ridges -red and Transform Faults -green
Major Tectonic Boundaries: Subduction Zones -purple, Ridges -red and Transform Faults -green
Related Links:
Posted in Chile Ridge, Nazca Plate, Pacific Ring of Fire, peru-chile trench, Subduction Zones | Tagged: Cuzco province, Earthquakes, Juliaca quake, peru earthquake, Yauri quake | 1 Comment »
Posted by feww on March 20, 2009
A magnitude 5.3 Mw foreshock followed the mainshock about two hours later. Further seismic and volcanic activity in the region can be expected.
[Data provided by USGS Earthquake Hazard Program]
Magnitude: 7.9
Date and time:
Location: 23.021°S, 174.700°W
Depth: 34 km (21.1 miles) set by location program
Region: TONGA REGION
Distances:
Location Uncertainty: horizontal +/- 6 km (3.7 miles); depth fixed by location program
Source: USGS NEIC (WDCS-D)
Event ID: us2009ejbr
USGS Map of the quake area. Color code for the aftershock changed for contrast.
Pacific Tsunami Warning Center (NOAA)
TSUNAMI BULLETIN NUMBER 002
PACIFIC TSUNAMI WARNING CENTER/NOAA/NWS
ISSUED AT 1932Z 19 MAR 2009
THIS BULLETIN APPLIES TO AREAS WITHIN AND BORDERING THE PACIFIC
OCEAN AND ADJACENT SEAS…EXCEPT ALASKA…BRITISH COLUMBIA…
WASHINGTON…OREGON AND CALIFORNIA.
… A TSUNAMI WARNING IS IN EFFECT …
A TSUNAMI WARNING IS IN EFFECT FOR
TONGA / NIUE / KERMADEC IS / AMERICAN SAMOA / SAMOA /
WALLIS-FUTUNA / FIJI
EVALUATION
SEA LEVEL READINGS CONFIRM THAT A TSUNAMI WAS GENERATED. THIS
TSUNAMI MAY HAVE BEEN DESTRUCTIVE ALONG COASTLINES OF THE REGION
NEAR THE EARTHQUAKE EPICENTER. AUTHORITIES IN THE REGION SHOULD
TAKE APPROPRIATE ACTION IN RESPONSE TO THIS POSSIBILITY. THIS
CENTER WILL CONTINUE TO MONITOR SEA LEVEL GAUGES NEAREST THE
REGION AND REPORT IF ANY ADDITIONAL TSUNAMI WAVE ACTIVITY. THE
WARNING WILL NOT EXPAND TO OTHER AREAS OF THE PACIFIC UNLESS
ADDITIONAL DATA ARE RECEIVED TO WARRANT SUCH AN EXPANSION.
FOR AFFECTED AREAS – WHEN NO MAJOR WAVES ARE OBSERVED FOR TWO
HOURS AFTER THE ESTIMATED TIME OF ARRIVAL OR DAMAGING WAVES HAVE
NOT OCCURRED FOR AT LEAST TWO HOURS THEN LOCAL AUTHORITIES CAN
ASSUME THE THREAT IS PASSED. DANGER TO BOATS AND COASTAL
STRUCTURES CAN CONTINUE FOR SEVERAL HOURS DUE TO RAPID CURRENTS.
AS LOCAL CONDITIONS CAN CAUSE A WIDE VARIATION IN TSUNAMI WAVE
ACTION THE ALL CLEAR DETERMINATION MUST BE MADE BY LOCAL
AUTHORITIES.
ESTIMATED INITIAL TSUNAMI WAVE ARRIVAL TIMES AT FORECAST POINTS
WITHIN THE WARNING AND WATCH AREAS ARE GIVEN BELOW. ACTUAL
ARRIVAL TIMES MAY DIFFER AND THE INITIAL WAVE MAY NOT BE THE
LARGEST. A TSUNAMI IS A SERIES OF WAVES AND THE TIME BETWEEN
SUCCESSIVE WAVES CAN BE FIVE MINUTES TO ONE HOUR.
LOCATION FORECAST POINT COORDINATES ARRIVAL TIME
——————————– ———— ————
TONGA NUKUALOFA: 21.0S 175.2W; 18:45UTC 19 MAR
NIUE NIUE IS.: 19.0S 170.0W; 19:04UTC 19 MAR
KERMADEC IS RAOUL IS.: 29.2S 177.9W; 19:12UTC 19 MAR
AMERICAN SAMOA PAGO PAGO: 14.3S 170.7W; 19:25UTC 19 MAR
SAMOA APIA: 13.8S 171.8W; 19:34UTC 19 MAR
WALLIS-FUTUNA WALLIS IS.: 13.2S 176.2W; 19:47UTC 19 MAR
FIJI SUVA: 18.1S 178.4E; 20:03UTC 19 MAR
Tsunami Warning Update:
TSUNAMI MESSAGE NUMBER 3
NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI
1009 AM HST THU MAR 19 2009
[Message truncated]
EVALUATION
THE PACIFIC TSUNAMI WARNING CENTER HAS CANCELLED THE REGIONAL
TSUNAMI WARNING IT ISSUED FOR ANOTHER PART OF THE PACIFIC. BASED
ON ALL AVAILABLE DATA THERE IS NO DESTRUCTIVE TSUNAMI THREAT TO
HAWAII AND THE ADVISORY FOR HAWAII IS ALSO CANCELLED.
HOWEVER… SOME COASTAL AREAS IN HAWAII COULD EXPERIENCE SMALL
NON-DESTRUCTIVE SEA LEVEL CHANGES AND STRONG OR UNUSUAL CURRENTS
LASTING UP TO SEVERAL HOURS. THE ESTIMATED TIME SUCH EFFECTS
MIGHT BEGIN IS
0236 PM HST THU 19 MAR 2009
THIS WILL BE THE FINAL MESSAGE ISSUED FOR THIS EVENT UNLESS
ADDITIONAL DATA ARE RECEIVED.
Posted in NUKUALOFA, Pacific Ring of Fire, STRONG CURRENTS, TONGA REGION | Tagged: Earthquake Hazard, Pacific Ocean, Tonga earthquake, tonga quake, tsunami warning | 2 Comments »
Posted by feww on October 7, 2008
Mount Soputan volcano, one of Sulawesi island’s most active volcanoes, erupted again Monday, spewing flames, fiery spark and clouds of hot smoke up to a 1,000 meters into the air.
Lava flowed about 1 km from the crater, according to Indonesia’s volcanology center.”There’s no order to evacuate but people are asked to stay outside a radius of four kilometers (2.5 miles) from the volcano’s summit because it could spew lava and heat clouds down its slopes,” a volcanologist said.
Indonesia, which sits on the so called “Pacific Ring of Fire,” is home to 150 listed volcanoes. [See below for more information on Pacific Ring of Fir. ]
Soputan volcano spews thick smoke and heat clouds in Minahasa. Source: AFP. Image may be subject to copyright.
Country: Indonesia
Region Name: Sulawesi (Indonesia)
Volcano Type: Stratovolcano
Last Known Eruption: 2008
Summit Elevation: 1784 m (5,853 feet)
Latitude: 1.108°N 1°6’30″N
Longitude: 124.73°E 124°44’0″E
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 by Agus Solihin (Volcanological Survey of Indonesia). Image and caption: GVP.
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.
Posted in Aeseput, Minahasa, Pacific Ring of Fire, stratovolcano | Tagged: Indonesia, lava flow, Soputan volcano, Sulawesi island, volcanic unrest | 1 Comment »
Fire Earth 