Pages

Monday 22 August 2016

Activity update 22/8/16: Bristol Island, Saunders Island

The eruption of Mount Sourabaya on Bristol Island appears to have ended or at least is in it's dying stages. A hazy Landsat 8 image from 21st August 2016 shows nothing more than dark patches with a little bit of steaming (indicating lava flows) and a thermal image revealed that the thermal anomaly over the lava field area wasn't so strong. This could indicate that the eruption of Mount Sourabaya has either ceased or may be in it's dying stages. A faint thermal anomaly is also present inside another crater to the east of Mount Sourabaya indicating possible elevated ground temperatures.

Satellite image of Bristol Island on the 21st August. SOURCE: Landsat 8/USGS/NASA.

Thermal image of Bristol Island on the 21st August. Has the eruption ceased? SOURCE: Landsat 8/USGS/NASA.



Meanwhile over on Saunders Island, a Landsat 8 image from the 21st August 2016 shows a steam plume being emitted from the summit crater of Mount Michael and drifting in a northerly direction. There's also what appears to show an enlargement of the crater caused by the collapse of an area between the summit crater and the "Old Crater" resulting in what possibly looks to be the two craters merging into one.

Saunders Island on the 21st August. SOURCE: Landsat 8/USGS/NASA.

No comments:

Post a Comment