Volcanic activity worldwide 6 Nov 2014: Santiaguito volcano, Popocatépetl, Bardarbunga, Kilauea, Fu...
jeudi nov. 06, 2014 14:27 |
Webcam view of the eruption this afternoon (Mila webcam)
Smaller pyroclastic flow at Sinabung today
Updated map of the lava flow in Pahoa as of 5 Nov 2014 local time (HVO)
Explosion at Popocatépetl ejecting incandescent material on the upper flanks on the evening of 4 Nov
Bardarbunga (Iceland): The Holuhraun fissure eruption continues with amazing stability. By now, more than 1 cubic kilometers of magma has been erupted and covers almost 70 square km (which implies an average thickness of 15 meters).
Ash plume from an explosion at Santiaguito on 3 Nov 2014
The depression in the ice above the caldera continues to deepen, likely a combined result of increased melting due to increased geothermal heat flow and the continuing subsidence of the caldera itself.
Sinabung (Sumatra, Indonesia): Several, but generally smaller pyroclastic flows occurred today at the volcano. They affected the southern slopes.
Kilauea (Hawai'i): The lava flow in Pahoa has not advanced at its leading edge and only minor breakouts have enlarged it at its sides.
According to HVO and visual impressions, current supply rates are low, giving the town some extra time for the time being - until a new surge of lava arrives at the flow front to give it a new push.
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Popocatépetl (Central Mexico): The volcano remains a little bit more agitated when compared to most of the past weeks. Strong glow at the summit indicates magma arriving in the inner crater to add to the new lava dome. Small occasional explosions and near-constant steam and gas emissions accompany this process.
CENAPRED commented on the elevated phase of activity that occurred during 4-5 November. A series of approx. 200 small explosions started on 20h local time on 4 Nov, producing a continuous plume of steam, gases and small amounts of ash of about 1 km in height, and the discontinuous emission of incandescent fragments onto the northern and eastern outer slopes to distances of 800 m from the crater rim.
This phase was visible on seismic recordings. It is likely to correspond to a phase of more intense lava dome growth. It is not thought to be a precursor of stronger activity in the near future and the alert status remains unchanged at "Yellow Phase 2".
Santiaguito (Guatemala): Explosive activity has returned to the Caliente lava dome after several months of absence. At least 3 explosions per day were seen during the recent days.
Most of them were small, but some produced plumes reaching several hundred meters in height. At the same time, the viscous lava flow to the southeast remains active and continues to advance slowly.
Fuego (Guatemala): Activity has been relatively weak today, with mostly smaller and only one medium-sized explosion recorded by the observatory.
The latter produced an ash plume rising 800 m and drifting 10-12 km to the SW, causing light ash fall in Panimache, Morelia, Santa Sofia, Panimache II and nearby areas.
mercredi, nov. 05, 2014
Volcanic activity worldwide 5 Nov 2014: Popocatépetl volcano, Kilauea, Piton de la Fournaise, Sinab...
mardi, nov. 04, 2014
lundi, nov. 03, 2014
Kilauea (Hawai'i): Over the past few days, there has been no advance of the lava flow front towards residences in Pahoa, though active lava continues to break out from the margins of the flow behind its farthest reach. Luckily no residences have burned so far because of this slow-down, but locals await the seemingly inevitable pressure surge which will come from somewhere on the flow in the near future. ... lire toutes
samedi, nov. 01, 2014
Turrialba (Costa Rica): According to the National Seismological Network (RSN), the sudden eruption of Turrialba last Wednesday night was the volcano’s largest in 150 years. Costa Rica-based online-newspaper ‘The Tico Times’ reports that it was a massive phreatic explosion that spewed out ash, rocks and possibly magma. Experts from the University of Costa Rica (UCR) and National University (UNA) reported increased seismic activity on Wednesday afternoon, culminating in explosive activity at 11:10 p.m. with the ash cloud from the explosion reaching several hundred meters. ... lire toutes
vendredi, oct. 31, 2014
Shishaldin (United States, Aleutian Islands): Eruptive activity at the volcano continues. Most of the time, it seems to be weak, probably strombolian in nature, but there have been episodes with more intense activity, possibly lava fountaining, evidenced by strong tremor and elevated surface temperatures. ... lire toutes