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Bizarro Earth

First Look at New Volcano Fissure Erupting in Hawaii

New fissure eruption
© Big Island Video News
The geologists with the USGS Hawaiian Volcano Observatory have released a first look at the new fissure eruption that just started today between Pu'u 'O'o and Napau Crater.

According to geologists, the first portion of the video was shot from the air looking southwest at the fissure eruption between Pu'u 'O'o and Napau Crater. The fissure segment in the tephra in the foreground opened seconds earlier, and only about 10 minutes after the eruption as a whole started. The cracks through the tephra are in the process of opening, though this can't be picked out at this distance.

The second part of the video was shot from the ground in front of the propagating fissure, showing low spattering that started moments earlier. Thick white steam from the crack in the foreground indicates that lava is about to reach the surface, and is seen doing so seconds later.

Bizarro Earth

Hawaii Volcano Sudden Change: Pu'u O'o Collapse, New Eruption Site

Pu‘u ‘O‘o Volcano
© USGSPu‘u ‘O‘o
At 1:42 p.m. HST this afternoon, USGS Hawaiian Volcano Observatory (HVO) monitoring network detected the onset of rapid deflation at Pu'u 'O'o and increased tremor along Kilauea Volcano's middle east rift zone. At 2:00 p.m., Kilauea's summit also began to deflate.

Between 2:16 and 2:21 p.m., the floor of the Pu'u 'O'o crater began to collapse, and within 10 minutes, incandescent ring fractures opened on the crater floor a few tens of meters away from the crater wall. As the floor continued to drop, lava appeared in the center of the crater floor, the northeast spatter cone within Pu'u 'O'o collapsed, and an obvious scarp developed on the west side of the crater floor, with lava cascading over the scarp toward the center of the crater.

At 2:41 p.m., the scarp on the west side of the crater floor appeared to disintegrate, exposing incandescent rubble. Five minutes later, the collapse of a large block along the east crater wall produced a dust plume.

Webcam images showed that the Pu'u 'O'o crater floor continued to drop through 4:26 p.m., when fume obscured the camera view. HVO Webcam images can be accessed here.

Bizarro Earth

Philippines: 3 Rockfall Incidents Recorded at Bulusan; 3 Quakes at Mayon

Mount Bulusan volcano
© Maria Ignacio / EPA Mount Bulusan volcano spews ash in Sorsogon province, eastern Philippines, Nov 2010.
One volcanic earthquake and at least three rockfall incidents were recorded near restive Bulusan Volcano in Sorsogon in the last 24 hours, the Philippine Institute of Volcanology and Seismology said Friday.

In its 8 a.m. update, Phivolcs also noted weak steaming activity at the southeast thermal vent.

"Bulusan Volcano's status remains at Alert Level 1. This means that the source of activity is hydrothermal and shallow. Entry to the 4-kilometer radius Permanent Danger Zone (PDZ) is strictly prohibited, since the area is at risk to sudden steam and ash explosions," it said.

Citing the prevailing wind direction, Phivolcs reminded residents in the northwest and southwest sectors of the volcano to take precautions against ash falls.

It also said civil aviation authorities must warn pilots to avoid flying close to the volcano's summit as ejected ash and volcanic fragments from sudden explosions may be hazardous to aircraft.

Arrow Up

Mud volcano in Indonesia to erupt until 2037

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A mud volcano in Indonesia is expected to continue erupting over the next 26 years according to international reports.

"Lusi," a mud volcano in Sidoarjo of East Java, Indonesia, first erupted on May 29, 2006. The 40 Olympic-sized pools of mud the volcano spewed a day during its peak buried homes and land in a 7-square kilometer radius, displacing over 13,000 families.

Based on the flow of mud, which has now slowed to 4 pools a day, researchers estimate that Lusi will continue to erupt until 2037.

"Our estimate is that it will take 26 years for the eruption to drop to a manageable level and for Lusi to turn into a slow bubbling volcano," Richard Davies, professor of Earth sciences at Durham University in England, said.

Radar

Philippines: 13 lahar-related 'quakes' rock Mount Bulusan area

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At least 13 volcanic quakes were recorded around restive Bulusan Volcano in Sorsogon in the last 24 hours, state volcanologists said Monday morning.

The Philippine Institute of Volcanology and Seismology said the quakes were "lahar-related" - a day after lahar flows affected water supply in parts of Sorsogon.

"Bulusan Volcano's seismic network recorded 13 lahar-related seismic signals during the past 24 hours. Steaming activity was not observed due to thick clouds covering the active vents and summit crater. Continuous heavy rain over Bulusan Volcano yesterday saturated loosely deposited ash and rock fragments and generated small lahar flows to roll down the slopes of the volcano then flowed along river channels," Phivolcs said on its website.

It said channel-confined lahar flows were observed along Cogon and Monbon river channels.

Other than that, it said no other significant volcanic activity was observed since the last ash explosion on Feb. 21.

Arrow Up

Pakistan: New island forms off Balochistan coast


Hingol, Balochistan - A soft muddy island appeared a few kilometers offshore in Hingol on the Makran coast, Balochistan on November 16, 2010. The Director General, Geological Survey of Pakistan (GSP) dispatched a team of earth scientists to investigate the sudden appearance of this white mud dome, about three kilometres offshore near the Kund Malir beach.

The island is 90 metres high with a span of approximately three kilometers.

Before the upsurge of sludge, local fishermen reported high tides near the coast and several boats were trapped due to the emergence of this mud volcano from nowhere. Another island of similar nature was also reported to have appeared 12 years ago. That island disappeared into the sea after four months. It is inferred that this mud dome which is given the name of Khizr, will also disappear with passage of time when methane and other gases are released from this structure.

The pictures taken by GSP earth scientists during their field investigations shows the eruption of white hot muddy sludge on top of the island. The ejected material is a sludge of fine solids, hydrate-bearing sediments suspended in acidic water and hydrocarbon fluids.

Attention

Philippines: 7 quakes recorded at Taal Volcano

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Taal Volcano
At least seven volcanic quakes were recorded around restive Taal Volcano in Batangas in the last 24 hours, state volcanologists said Friday.

The Philippine Institute of Volcanology and Seismology also noted weak steaming activity even as it said Alert Level 1 stays.

"Alert Level 1 is still enforced over Taal Volcano. This means that a hazardous eruption is not imminent. However, the public is reminded that the Main Crater should be strictly off-limits due to sudden occurrence of steam explosions and accumulation of toxic gases," it said in its Taal update.

Bizarro Earth

Indonesian mud volcano flow 'to last 26 years'

The world's largest mud volcano, which left 13,000 families homeless, is likely to continue erupting for another 26 years, researchers have estimated.

mud volcano
The mud buried homes, schools and farmland, and has displaced thousands of families
It first erupted back in May 2006, and - at its peak - was spewing 180,000 cubic metres of mud a day, equivalent to 50 Olympic-sized swimming pools.

The volcano, in East Java, Indonesia, has buried homes, schools and farmlands over seven square kilometres.

The findings have been published in the Journal of the Geological Society.

Bizarro Earth

Indonesia's Infamous Mud Volcano Could Outlive All of Us

Lusi mud volcano
© n/a
Since it roared to life in May 2006, a mud volcano near Indonesia's coastal city of Sidoarjo has swallowed homes, rice paddies, factories, and roads, killing 15 people, displacing 40,000, and harming the livelihoods of many more. As the ongoing eruption nears its 5th anniversary, observers wonder whether it will ever stop. The answer: Not anytime soon. A new study predicts the volcano will continue spewing significant amounts of mud for another 2 decades. A second study forecasts that it could grind on as long as 87 years.

The mud volcano has inflicted a punishing blow to the region of Java island 700 kilometers east of the capital, Jakarta. Nicknamed Lusi, a contraction of lumpur (Indonesian for mud) and Sidoarjo, the volcano has so far disgorged 144 million cubic meters of mud, some of which now covers an area roughly twice the size of New York City's Central Park. Much of the mud has been diverted to a nearby river, where it has formed a new 83 hectare island and extended a natural delta. Compensation and mitigation have cost at least $767 million, according to Humanitas, a nongovernmental organization in Melbourne, Australia, that is studying the disaster's social impact. That is a fraction of the real economic toll, which is still being tallied.

Lusi may be a harbinger of disasters to come. "Like a volcanic eruption, a mud eruption is just the effect of geological activity, and I'm sure in the future another mud volcano must erupt in this region," says Soffian Hadi Djojopranoto, a geologist with the Sidoarjo Mudflow Mitigation Agency. "We need very serious research to understand this phenomenon."

Phoenix

Two US volcanoes making news: Kilauea and St. Helens

Mount St Helens
© Big ThinkAn undated aerial image of Mount St. Helens, Washington.
We've talked a lot about volcanoes in other parts of the world, but now we have two UF volcanoes making some news (although neither because they're having a large eruption):

Hawai'i: The lava lake at the Halema'uma'u Crater in Kilauea has reached new heights - in fact, the lava lake had gotten high enough (~77 meters below the crater floor) in the pit crater that there was some thoughts that it might spill out onto the floor of the crater. However, that fate is unclear now as the pit crater itself is collapsing into the lava lake, with large chunks of the rim falling in on Monday. These chunks, some as large as 120 meters x 5 meters, fell into the lake and produced small plumes of ash and gases along with very obvious popping sounds heard as far as half a mile away. You can hear some of the noises and watch some quicktime movies of the activity at the Halema'uma'u Crater over on the Hawaii Volcano Observatory website. Collapses in the pit crater in 2009 blocked off the lava lake from view, but quickly the lava was able to retake the crater. Seismicity related to the upper east rift zone of lava seemed to peak late last week, which might suggest that the influx of new basaltic magma might be waning. Be sure to check out the great time lapse videos (this one from Pu'u O'o) from Eruptions readers along with all the Kilauea the webcams as well. UPDATE: Speaking of Pu'u O'o time lapse video, here is a new one from the USGS as well.