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Wednesday, 16 October 2019

Extensive gas plume from Saunders Island

Satellite image from the 10th October 2019 shows an extensive white plume being emitted from Michael Volcano on Saunders Island and being blown in an east-southeasterly direction. There is no thermal anomaly present in the summit crater area which brings me to the opinion that it is just a gas plume.

Further images of Saunders Island from the 13th and 15th October 2019 show nothing more than degassing activity on Michael Volcano.

Extensive gas plume drifting ESE on 10th October 2019. SOURCE: Sentinel-2/Sentinel Hub.
Degassing activity on 13th October 2019. SOURCE: Sentinel-2/Sentinel Hub.
Degassing activity on 15th October 2019. SOURCE: Sentinel-2/Sentinel Hub.

Tuesday, 15 October 2019

Few more photos of the South Sandwich Islands volcanoes

Some of you may or may not recall a post I done earlier this year showing photos of the South Sandwich Islands volcanoes taken by a scientist on board the Discovery Expedition 99 voyage to South Georgia Island and the South Sandwich Islands.

Well this is a kind of belated post but another scientist, Chris Darby who was also aboard the same expedition that time had also gave me kind permission to share his pics.

All photos taken by Chris Darby, late February to early March 2019.

ZAVODOVSKI ISLAND



SAUNDERS ISLAND




THULE ISLAND


Monday, 14 October 2019

Quick Mt. Michael September satellite image updates

This is just a quick post so I'm able to catch up quicker, but below are some satellite images of activity on Mount Michael during September taken from the Sentinel-hub website. It's mostly about the plumes but one image shows a weak thermal anomaly inside the summit crater.

3rd September 2019. SOURCE: Sentinel-2/Sentinel Hub.

8th September 2019. SOURCE: Sentinel-2/Sentinel Hub.



15th September 2019. SOURCE: Sentinel-2/Sentinel Hub.

28th September 2019. SOURCE: Sentinel-2/Sentinel Hub.

Strong earthquake hits South Sandwich Islands during late August

A strong magnitude 6.6 earthquake hit the South Sandwich Islands on the 27th August 2019 at 23:55 UTC. The epicenter of the quake was reported to be about 131km south of Bristol Island with a depth of 16km.

6.6 magnitude earthquake on 27th August 2019. SOURCE: USGS.

Thursday, 5 September 2019

Gas and ash plume on Mount Michael caught on satellite in August

Satellite image from 5th August 2019 shows a clear view of Saunders Island with what appears to be steam and gas emissions occupying the summit crater area of Mount Michael. Meanwhile, in an image from the 14th August 2019 a light greyish plume originating from the summit crater is seen drifting for a very short distance north-northeast suggesting a small eruption on Mount Michael.

What appears to be a small scale steam and gas emission on Mt. Michael, 5th August. SOURCE: Landsat 8/USGS/NASA.

What appears to be a small eruption on Mt. Michael as of 14th August. SOURCE: Landsat 8/USGS/NASA.

Wednesday, 10 July 2019

New scientific paper on Mount Michael

A new scientific paper about Mount Michael on Saunders Island has recently been released by Journal of Volcanology and Geothermal Research. The article is about evidence of a lava lake which has been present inside the summit crater of Mount Michael volcano using satellite imagery and data and is titled "Evidence for a lava lake Mt. Michael volcano, Saunders Island (South Sandwich Islands) from Landsat, Sentinel-2, and ASTER satellite imagery".

If you would like to have a good read here is the link where you can download the paper from: https://www.sciencedirect.com/science/article/pii/S0377027318305742

Wednesday, 29 May 2019

New photos of the South Sandwich Islands volcanoes

Earlier this year, a team of scientists went on the Discovery Expedition 99 voyage to South Georgia Island and the South Sandwich Islands to monitor the biodiversity there, the survey was part of the UK Blue Belt Programme with the aim to explore the deep sea communities of the South Sandwich Islands.

With kind permission, Marta Soeffker who was aboard the expedition ship has let me share the pics she taken of the South Sandwich volcanoes.

All photos taken by Marta Soeffker, late February to early March 2019.

ZAVODOVSKI ISLAND




SAUNDERS ISLAND




MONTAGU ISLAND





BRISTOL ISLAND