Friday, September 24, 2010

Piton de la Fournaise Volcano, Reunion - John Seach

A seismic crisis occurred at Piton de la Fournaise Volcano, Reunion on the evening of 23rd September. Several tens of earthquakes were located at the base of the summit area, in Dolomieu crater. The seismic crisis was associated with significant inflation (3 cm) of the volcano, especially near the summit. The data indicates that magma has moved towards the surface and an eruption is imminent. Access trails to the summit of Piton de la Fournaise, either from Pas de Bellecombe or from any other trails have been closed to the public from 24th September 2010 until further notice.
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Thursday, September 23, 2010

Sinabung Volcano, Indonesia - John Seach

Volcanic activity Sinabung volcano, Indonesia has decreased based on seismic observations, deformation, SO2 concentration, and visual observations. The alert status at Sinabung has been decreased from CAUTION (Level IV) to alert (Level III) effective from 23 September 2010 at 3:50 pm. Activity began at Sinabung volcano, on 27th August 2010 after 400 years of inactivity. Six large explosive eruptions have occurred at the volcano in the past month. These eruptions occurred on August 27 at 18:30 pm, August 29 at 0:10 pm, August 30 at 06: 23 pm, September 03 at 04:38 and 17:59 pm, and September 7, at 0:23:37 pm. The largest explosive eruption occurred on September 7. Eruption was accompanied by strong roar and rattled windows 8km from the volcano. An eruption column 5000 m high drifted southeast. As of September 22, 2010, activity was dominated by thick white gas emission, rising an average height of between 50-100 m above the crater. A lahar hazard remains at the volcano. Most residents are permitted to return to their homes and resume normal activities. Because of the ongoing risk of phreatic eruptions, people are advised to stay at least 3.5 km from the crater, and this includes three villages.
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Saturday, September 11, 2010

Kilauea Volcano, Hawaii - John Seach

Eruptions continue from two location at Kilauea volcano, Hawaii. On the east rift zone lava is visible in Pu`u `O`o crater, and also flowed from the TEB vent through tubes to one ocean entry at Puhi-o-Kalaikini delta. On Thursday there were no surface lava flows visible on the coastal plain. At the summit of Kilauea volcano, lava is visible in a pit at Halemaumau Crater. Lava has reached within 115 m of the surface, and a red glow is visible at night from Hawaii Volcano Observatory. During periods of high lava levels, the lava surface is visible with the naked eye.
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Sunday, September 05, 2010

Seulawah Agam Volcano, Indonesia - John Seach

Between January 2010 there was an increase in seismic activity at Seulawah Agam volcano. There were no changes observed visually at the volcano. On 1st September 2010 the alert level at the volcano was raised from Normal (Level I) to Alert (Level II).
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