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Archive for the ‘KILAUEA VOLCANO’ Category

Volcanic Emissions: Hawaii County Declared Disaster Area

Posted by feww on February 11, 2012

Hawaii County declared agricultural disaster area amid continuing volcanic emissions

The U.S. Department of Agriculture (USDA) has declared Hawaii County in Hawaii as a primary natural disaster area due to losses caused by volcanic emissions that began on January 1, 2011, and continue.

Disaster Calendar 2012 – February 11

[February 11, 2012]  Mass die-offs resulting from human impact and the planetary response to the anthropogenic assault could occur by early 2016.  SYMBOLIC COUNTDOWN: 1,495 Days Left to the ‘Worst Day’ in Human History

  • Hawaii.  USDA has declared Hawaii County a primary natural disaster area due to agricultural losses caused by volcanic emissions that began on January 1, 2011, and continue.

HAWAIIAN VOLCANO OBSERVATORY DAILY UPDATE
Friday, February 10, 2012 7:14 AM HST (Friday, February 10, 2012 17:14 UTC)

KILAUEA VOLCANO
19°25’16” N 155°17’13” W, Summit Elevation 4,091 ft (1,247 m)
Current Volcano Alert Level: WATCH
Current Aviation Color Code: ORANGE

Activity Summary for past 24 hours: Overall eruptive activity was low. DI deflation and dropping of the summit lava lake started this morning. Within Pu`u `O`o Crater, glow was visible from sources on the northeast and southeast edges of the floor.  Surface flows southeast of Pu`u `O`o remained active but there were no active surface flows on the pali, coastal plain, or entering the ocean. Seismic tremor levels were low and gas emissions were elevated. (Source: HVO)


This photograph shows the east rim of Pu`u `Ō `ō crater. A collapsed spatter cone revealed a swiftly flowing stream of lava heading northeast, into the tube system that supplies the active flow field. The active flows today were 6 km (3.7 miles) southeast of Pu`u `Ō `ō. Dated 8 February 2012.  (Source: HVO)


Map showing the extent of lava flows erupted during Kīlauea’s ongoing east rift zone eruption and labeled with the years in which they were active. Episodes 1–48b (1983–1986) are shown in dark gray; Episodes 48c–49 (1986–1992) are pale yellow; Episodes 50–53 and 55 (1992–2007) are tan; Episode 54 (1997) is yellow; Episode 58 (2007–2011) is pale orange; the episode 59 Kamoamoa eruption (March 2011) is at left in light reddish orange; and the episode 60 Pu‘u ‘Ō‘ō overflows and flank breakout (Mar–August 2011) is orange. The currently active flow (episode 61) is shown as the two shades of red—pink is the extent of the flow from September 21, 2011, to January 26, 2012, and bright red marks flow expansion from January 26 to February 8. The active lava tube is delineated by the yellow line within the active flow field. The contour interval on Pu‘u ‘Ō‘ō is 5 m.  (Source: HVO)

Global Disasters: Links, Forecasts and Background

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Activity at Kilauea – Satellite Images

Posted by feww on March 24, 2011

Kilauea: The World’s Most Active Volcano

KILAUEA VOLCANO
Location: 19°25’16″N 155°17’13″W
Summit Elevation: 1,247 m
Current Volcano Alert Level: WATCH
Current Aviation Color Code: ORANGE
Source: HVO

HAWAIIAN VOLCANO OBSERVATORY DAILY UPDATE
Wednesday, March 23, 2011 7:34 AM HST (Wednesday, March 23, 2011 17:34 UTC)

Activity Summary for past 24 hours

  • No molten lava visible at Kilauea volcano surface
  • DI deflation continues
  • Lava lake crusted over very deep within the summit vent
  • Summit seismicity slightly elevated
  • SO2 emissions and ERZ seismicity are low at summit and East Rift ZoneS
  • Sulfur dioxide emission rate about 200 tons per day ((preliminary reading on March 22, 2011)

[NOTE: DI stands for ‘deflation-inflation’ and denotes a volcanic event of uncertain significance.]


Click images to enlarge. Download larger image (571 KB, JPEG)  — captured March 18, 2011


Download larger image (436 KB, JPEG)  —  captured January 16, 2010

“In the image—which depicts mostly infrared wavelengths of light—vegetation is green, older lava flows are brown to black, and “hot” areas are red. In this case, the scorched land and fresh lava in the burn scar appears slightly red and brown, while the still-burning forest fire appears bright red. In the 2010 image, lava stands out within and near Pu’u ‘O’o.” Source: NASA-EO.

On March 5, 2011, a new fissure appeared on Kilauea, the world’s most active volcano. Fresh lava from Kamoamoa fissure spewed to a height of about 50 meters above ground, setting off a forest fire which has since consumed about 2,000 acres.

Kamoamoa fissure is located about 13km  east of the volcano summit, lying along the rift zone between Pu’u ‘O’o and Napau Crater .

The above false-color images of of the are were taken by ALI on the NASA’s EO-1 satellite captureda (top) on March 18, 2011, bottom on 16, 2010 (included for comparison).

Kilauea’s latest episode of ongoing activity began in 1983.

Related Links

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Kilauea SO2 emissions tops 10,000 tpd

Posted by feww on March 8, 2011

Kilauea Volcano: Elevated Seismicity, Increased Effusion

Volcano Shows Increased Effusion Rates, Significantly Elevated Seismicity at summit and east rift zone


Lava pours from the fissure just after daybreak and cascades out of sight into a deep crack. HVO geologist near upper right for perspective. Source: HVO. Click image to enlarge.

HVO/USGS Volcanic Activity Warning

Volcano: Kilauea (CAVW #1302-01-)
Current Volcano Alert Level: WARNING
Current Aviation Color Code: ORANGE
Previous Aviation Color Code: RED

Issued: Monday, March 7, 2011, 6:13 PM HST (March 8, 2011, at 04:1UTC)
Source: Hawaiian Volcano Observatory
Notice Number: 2011/H2
Location: N 19 deg 25 min W 155 deg 17 min
Elevation: 4,091 ft (1,247 m)
Area: HI Hawaii and Pacific Ocean

Volcanic Activity Summary from HVO:  Eruption continues at Kīlauea volcano’s east rift zone  with intermittent activity at alternating locations along a 2.3 km long fissure between Pu’u ‘Ō’ō and Nāpau Crater. Effusion rates are high, with lava spatter reaching as high as  30m.

East rift zone gas emissions are significantly elevated above the 300 tonnes/day measured during the past several months and as recently as March 5, prior to the fissure eruption. Gas measurements on March 6 show an average SO2 emission rate of 10,000 tonnes/day, the highest measured on the east rift zone since an eruptive surge in July 2008 produced an emission rate of 7,000 tonnes/day. Summit SO2 emissions on March 6 were around 600 tonnes/day.

The TEB eruption system downrift (ENE) of Pu’u ‘Ō’ō appears to have shut down. During today’s overflight of the flow field, no active lava flows were observed on the pali or coastal plain.

Seismicity remains significantly elevated at both Kīlauea’s summit and east rift zone.

Deflation appears to be slowing at the summit and east rift zone.

At Kīlauea’s summit, the lava lake within the Halema’uma’u Crater vent is about 200 m deep, based on visual estimates. A rockfall within the vent at 2:23 p.m. HST today produced a vigorous dusty brown plume.


The fissure is located just west of Pu`u `Ō `ō Crater. Spatter was reaching heights of 40 m (130 ft). Source: HVO


Most of the day’s activity was focused at this vent, around which a low cone was forming. Pu`u `Ō `ō is visible in the background to the northeast. Source: HVO


Source: HVO.  Click image to enlarge.

Video showing lava pouring from the fissure into a seemingly bottomless crack

Video showing lava pouring from the fissure into a seemingly bottomless crack. Napau Crater in the background. Helicopter for scale.
Video showing lava pouring from the fissure into a seemingly bottomless crack. Napau Crater in the background. Helicopter for scale. Source: HVO

Video showing spattering from the most persistent vent of the day just west of the base of Pu`u `Ō `ō near the northeastern end of the fissure system.
Video showing spattering from the most persistent vent of the day just west of the base of Pu`u `Ō `ō near the northeastern end of the fissure system.

Lava spatters above the fissure just west of the base of Pu`u `Ō `ō.
Lava spatters above the fissure just west of the base of Pu`u `Ō `ō

Related Links

HVO Links:

Kīlauea Update | Mauna Loa Status | Deformation | Maps | Webcams | Images | Movies

Hawaii Volcanoes  Webcams

Kīlauea Summit

Halema`uma`u, Kīlauea Volcano
Halema`uma`u from HVO
Halema`uma`u from Overlook, Kīlauea Volcano, Hawaii
Halema`uma`u from Overlook
Kīlauea East Rift Zone

Pu`u `Ō `ō, Kīlauea Volcano
Pu`u `Ō `ō
Thanksgiving Eve Breakout From Pu`u `Ō `ō
Thanksgiving Eve Breakout From Pu`u `Ō `ō
Napau Crater, Kīlauea Volcano
Napau Crater
Mauna Loa Summit

Mokuawe`owe`o, Mauna Loa Summit Caldera
Mokuawe`owe`o, Mauna Loa Summit Caldera

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Heightened Activity at Kilauea Volcano

Posted by feww on March 7, 2011

New Fissure at  Kilauea Spews Lava 25m into the Air

HAWAIIAN VOLCANO OBSERVATORY CURRENT STATUS REPORT
Sunday, March 6, 2011 6:34 PM HST (Monday, March 7, 2011 04:34 UTC)

KILAUEA VOLCANO (CAVW#1302-01-)
19.42°N 155.29°W, Summit Elevation 4,091 ft (1,247 m)
Volcano Alert Level: WARNING
Aviation Color Code: RED

HVO said: “A fissure that opened on Kilauea’s east rift zone after yesterday’s collapse of the Pu’u ‘O’o crater floor continues to erupt lava. Activity along the fissure was sporadic overnight and throughout today, with periods of quiet punctuated by episodes of lava spattering up to 25 m (80 ft) high.”

Fire Earth: A new fissure at Kilauea Volcano on the Big Island of Hawaii spatters lava


A close-up of spattering fissure. Credit: HVO. Click image to enlarge.


View looking at the NE end of the actively propagating fissure. Lava is just breaking the surface in foreground crack.  Credit: HVO. Click image to enlarge.

Ash cloud rising from Pu`u `Ō `ō as crater floor collapses [5 March 2011]


Ash cloud rising from Pu`u `Ō `ō as crater floor collapses due to magma withdrawal. Incandescent rubble can be seen crumbling and rolling down the scarp. The east rim of Pu`u `Ō `ō is in the foreground. Credit: HVO

Several video clips showing wall and rim collapses of Halema`uma`u


There was a series of vent wall and rim collapses on March 3, much like those than occurred in January and February. This video, compiled from the Webcam on the rim of Halema`uma`u above the vent, is one of the larger collapses, and shows the northwest rim of the vent falling into the lava lake. Credit: HVO. Click image to view the video clip.


Click image to view a clip captured by a video camera on the rim of Halema`uma`u to the southwest of the vent, showing a small chunk of the western rim of the vent collapsing into the lava lake.  Credit: HVO.


Archive image of lava from a previous eruption at Kilauea Volcano.  Credit: HVO


Source: [http://www.lib.utexas.edu/maps/united_states Perry-Castañeda Library Map Collection]


Map showing the extent of the “July 2007 eruption”, or Episode 58, flow field relative to surrounding communities. Reddish-brown is the active flow as mapped on January 13, 2011, while bright red shows the advancement of the flow from January 13-February 4. Light red represents older flows erupted during Episode 58 of the ongoing East Rift Zone eruption. Episode 58 started in July 2007. Flows erupted during 1983-2007 are shown in more muted colors and labeled with the years in which they were active. Click image to enlarge. Credit: HVO


Map showing the extent of the active flows. Reddish-brown is the flow as mapped on February 4, 2011, while bright red shows the advancement of the flow from January 13-February 4. Small ocean entries remains active at the front of both the western and eastern branches of the flow. Light red represents older flows erupted during Episode 58 of the ongoing East Rift Zone eruption. Episode 58 started in July 2007. Lava erupted while Kupaianaha was active from 1986-1992 (Episode 48) is shown in light yellow. Click image to enlarge. Credit: HVO

The Big Island, Hawaii

The Island of Hawaiʻi (the Big Island or Hawaiʻi Island) is a volcanic island With an area of 4,028 square miles (10,432 km²), it is the largest island in the United States and larger than all of the other Hawaiian Islands combined.

The Island of Hawaiʻi is built from five separate shield volcanoes that erupted somewhat sequentially, one overlapping the other. These are (from oldest to youngest):

  • Kohala (dormant),
  • Mauna Kea (dormant),
  • Hualālai (dormant),
  • Mauna Loa (active, partly within Hawaiʻi Volcanoes National Park), and
  • Kīlauea (very active; part of Hawaiʻi Volcanoes National Park).


This simulated true-color image of the island of Hawai’i was derived from data gathered by the Enhanced Thematic Mapper plus (ETM+) on the Landsat 7 satellite between 1999 and 2001. Image: NASA/NOAA


The lava fountain on shield 3 (12-15 m high). USGS Archive image.

Related Links:

Other Volcano News:

New Zealand’s Mount Ruapehu crater lake has heated up to 40ºC, reported to be the lake’s third-highest temperature rise in 10 years.

HVO Links:

Kīlauea Update | Mauna Loa Status | Deformation | Maps | Webcams | Images | Movies

Kīlauea Summit

Halema`uma`u, Kīlauea Volcano
Halema`uma`u from HVO
Halema`uma`u from Overlook, Kīlauea Volcano, Hawaii
Halema`uma`u from Overlook
Kīlauea East Rift Zone

Pu`u `Ō `ō, Kīlauea Volcano
Pu`u `Ō `ō
Thanksgiving Eve Breakout From Pu`u `Ō `ō
Thanksgiving Eve Breakout From Pu`u `Ō `ō
Napau Crater, Kīlauea Volcano
Napau Crater
Mauna Loa Summit

Mokuawe`owe`o, Mauna Loa Summit Caldera
Mokuawe`owe`o, Mauna Loa Summit Caldera

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