Is kasatochi volcano active?

Is kasatochi volcano active?

Kasatochi Island (Aleut: Qanan-tanax̂; Russian: Касаточий остров), also known as Kasatochi volcano, is an active stratovolcano and part of the Andreanof Islands subgroup of the Aleutian Islands of southwestern Alaska….

Where is the Kasatochi volcano?

Alaska Peninsula
Kasatochi, which apparently had not erupted during the last century, erupted explosively with little warning on 7 August 2008. The island is generally uninhabited, ~ 3 km in diameter, and lies ~ 800 km W of the tip of the Alaska Peninsula (figures 1 and 2).

When did kasatochi erupt?

8 August 2008
The 7–8 August 2008 eruption of Kasatochi Volcano, central Aleutian Islands, Alaska.

What type of volcano is kasatochi?

Stratovolcano
Kasatochi Island description and information

How did Puyehue Cordon Caulle form?

On 13 December 1921, Cordón Caulle began a sub-plinian eruption, with a 6.2 km (4 mi) high plume, periodic explosions and seismicity. The eruption had a Volcanic Explosivity Index of 3 and ended in February 1922.

What was the worst volcano in history?

Tambora
Deadliest Eruption

Is the Puyehue volcano dormant or extinct?

On Saturday, a volcano in the Puyehue-Cordon Caulle chain of south-central Chile erupted after lying dormant for more than 50 years.

What type of volcano is Kasatochi Island?

Kasatochi Island, like Gareloi, Bogoslof, and several other volcanoes in the western Aleutian arc, represents the emergent summit of a predominantly submarine volcano. The island consists of a single, undissected cone with a central lake-filled crater about 0. 75 km in diameter.

Why is the Kasatochi volcano asymmetric in shape?

This asymmetry of form may reflect a predominance of lava flows low on the southern flanks, or, it may be due to a higher rate of erosion by wave action from the north. Bathymetry indicated that Kasatochi is at the northern end of a 15-km-long, 6-km-wide submarine ridge that is normal to the trend of the Andreanof Islands.

How is Kasatochi being monitored?

This report highlights studies conducted during 2008-2009 of the uninhabited island. Alaska Volcano Observatory (AVO) still monitors Kasatochi (figure 8) indirectly from the Great Sitkin Island seismic network located 42 km away and from satellite imagery.

Is there seismic activity at Kasatochi?

AVO reported that during 3-9 September seismic activity from Kasatochi, detected by stations approximately 40 km W on Great Sitkin island, was low. Vigorous steam-and-gas plumes that rose above the crater and drifted up to 32 km downwind were observed on 3 and 4 September by passing mariners.