Schlagwort: volcano news

The crater lake of Taal Volcano Island during 16 and 17 Feb 2021 with apparent calm (image: PHIVOLCS)

Ongoing elevated seismic activity under the volcano sparked fears that the volcano, which had a massive, devastating eruption little more than a year ago, in January 2020, might erupt again in the near future. It prompted authorities to evacuate residents from Volcano Island, located within the crater lake of Taal volcano in the Province of Batangas, Philippines.

Volcano Island is within the designated Permanent Danger Zone (PDZ) of the Taal Volcano due to its location within the crater lake. The evacuations affected the remaining small villages located on the shores of the island, as they are only a few kilometer distance from the active crater lake in the center of the island away.
The Philippine Institute of Volcanology and Seismology (PHIVOLCS) has recorded more than 300 volcanic tremor episodes since Feb. 15, 2021. GPS data and satellite-based radar analysis show that the volcano continues a slow trend of inflation. These observations indicate that magma is accumulating inside its reservoirs.
At the surface, activity has not changed significantly and seems calm – for now. The temperature of the highly acid crater lake was last measured on 12 Feb 2021 and was at a maximum of 77.1°C with a pH of 1.59. PHIVOLCS reported weak emission of white steam-laden plumes from fumaroles that rose 5 meters high.

Map of today’s active volcanoes

Etna (Sicily, Italy): (17 Feb) Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Toulouse warned about a volcanic ash plume that rose up to estimated 12000 ft (3700 m) altitude or flight level 120 and is moving at 10 kts in S direction.
The full report is as follows: ERUPTION AT 20210216/1610Z SPORADIC ASH EMISSION STILL OCCURS to 12000 ft (3700 m)
…16 Feb:
This afternoon, Etna produced a very spectacular lava-fountaining eruptive episode, known as paroxysm.
Starting from around 5 p.m. local time in the afternoon, the strombolian activity, which had been going on for the past weeks from the New SE crater intensified significantly. Shortly after, a lava overflow was observed from the eastern side of the South East crater. At 16:05 UTC (5:05 p.m. local time), a part of the eastern flank of the cone collapsed into a pyroclastic flow that traveled down the western wall of the Valle del Bove depression.
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The flow, as hot material was sliding over snow, produced an ash and steam cloud that quickly dispersed from high altitude winds to the south.
5 minutes later, the explosive activity at the SE crater increased further into lava fountains several hundred meters high, which produced a tall ash plume that rose to up to approx. 10 km elevation (30,000 ft) above sea level, i.e. 7 km above the craters.

Raung (East Java): (17 Feb) Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: DISCRETE VA EMISSION TO FL140 AT 27/0012Z EST VA DTG:17/0629Z

Semeru (East Java, Indonesia): (16 Feb) Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: CVGHM GROUND REPORT OF ERUPTION TO FL130 OBS VA DTG:16/2340Z

Popocatépetl (Central Mexico): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 20000 ft (6100 m) altitude or flight level 200 .
The full report is as follows: NEW VA EM OBSD to 20000 ft (6100 m)

Pacaya (Guatemala): (17 Feb) The effusive-explosive eruption of the volcano continues at elevated levels.
Strombolian activity from Mackenney summit crater continues, began to increase gradually last night and is still continuing at the time of this update.
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The explosions generate glowing lava bombs ejected to an approximate height of 200 to 250 meters above the crater.
The lava flow on the S-SW flank remains active, currently about 650 m long and caused glowing and hot avalanches of material.

Fuego (Guatemala): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 15000 ft (4600 m) altitude or flight level 150 .
The full report is as follows: VA EMS OBS IN SUMMIT WEB CAM to 15000 ft (4600 m)

Sangay (Ecuador): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 21000 ft (6400 m) altitude or flight level 210 .
The full report is as follows: VA CLDS OBS IN SUMMIT WEB CAM to 21000 ft (6400 m)

Reventador (Ecuador): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 15000 ft (4600 m) altitude or flight level 150 .
The full report is as follows: NEW VA EMS to 15000 ft (4600 m)

Sabancaya (Peru): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Buenos Aires warned about a volcanic ash plume that rose up to estimated 27000 ft (8200 m) altitude or flight level 270 and is moving at 25 kts in S direction.
The full report is as follows: continuous ash emissions to 27000 ft (8200 m)

Volcano Activity Summary for 17 Feb 2021:

Satellite image of Etna volcano on 17 Feb 2021