Sunday, 14 May 2017

Zavodovski Island catch ups May 2017

As I've been working on another project since the beginning of the year, I was too focused to be able to write articles on emissions from Mount Curry Volcano on Zavodovski island. Now that I'm finished, I thought I'd make a catch up post. While I won't go into any detail, instead I will post a series of satellite images below.

1st January 2017. SOURCE: Aqua/MODIS/NASA.
3rd January 2017. SOURCE: Aqua/MODIS/NASA.
6th January 2017. SOURCE: Suomi NPP/VIIRS/NASA.
7th January 2017. SOURCE: Terra/MODIS/NASA.
14th January 2017. SOURCE: Terra/MODIS/NASA.
16th January 2017. SOURCE: Aqua/MODIS/NASA.
21st January 2017. SOURCE: Suomi NPP/VIIRS/NASA.
25th January 2017. SOURCE: Aqua/MODIS/NASA.
27th January 2017. SOURCE: Terra/MODIS/NASA.
8th February 2017. SOURCE: Terra/MODIS/NASA.
16th February 2017. SOURCE: Aqua/MODIS/NASA.
13th March 2017. SOURCE: Aqua/MODIS/NASA.
23rd March 2017. SOURCE: Aqua/MODIS/NASA.
3rd April 2017. SOURCE: Aqua/MODIS/NASA.

Thursday, 11 May 2017

6.5 Magnitude earthquake in South Sandwich Islands

A strong magnitude 6.5 earthquake has hit the South Sandwich Islands on the 10th May 2017 at 23:23 UTC. The epicenter of the quake was reported to be about 94km east-northeast of Visokoi Island with a depth of 10km.

6.5 magnitude earthquake on 10th May 2017. SOURCE: USGS.

Saturday, 18 March 2017

Dark areas spotted on Saunders and Bristol islands

Satellite image of Saunders Island on the 12th March 2017 shows a dark spot on the summit area of Mount Michael indicating that some sort of activity has occurred, probably an eruption or perhaps some increased fumarolic activity. No thermal anomaly however was detected. The dark spot on Mount Michael was also slightly visible in satellite imagery. In the following days, cloud cover obscured views.

Dark spot on Mount Michael on the 12th March 2017. SOURCE: Aqua/MODIS/NASA.

In the satellite image of a partially visible Bristol Island on the 17th March 2017, a tip of a lava flow is visible at the northern part of the island. Did a new eruption recently occur or has the heat from the potentially still hot lava flow of last year's eruption melted the surface snow? No recent thermal anomaly was detected.

Visible area of lava. Recent activity or still hot 2016 lava flow? SOURCE: Landsat 8/USGS/NASA.

Saturday, 28 January 2017

Possible ash emission on Zavodovski

Satellite image from 18th January 2017 shows a plume being emitted from Mount Curry Volcano on Zavodovski Island. In my opinion, the plume appears to have some possible ash content and it's possible an eruption might've occurred.

Mount Curry emitting plume with possible ash content. SOURCE: Aqua/MODIS/NASA.

Thursday, 29 December 2016

New images from Landsat 8 from 11th December

Landsat 8 image of Saunders Island from the 11th December shows a gas plume originating from Mount Michael Volcano.

Gas emission originating from Mount Michael Volcano. SOURCE: Landsat 8/USGS/NASA.

In the Landsat 8 image of Bristol Island, the summit area of Mount Sourabaya is exposed in a largely cloudy image showing what appears to be a minor steam emission. In the thermal image a thermal anomaly is visible from the same area. This suggests some possible fumarolic activity.

Minor steam emission on Mount Sourabaya Volcano. SOURCE: Landsat 8/USGS/NASA.

Thermal anomaly on the summit area of Mount Sourabaya. SOURCE: Landsat 8/USGS/NASA.

Tuesday, 27 December 2016

Zavodovski Island catch ups December 2016

I have another catch up post, this time about Zavodovski Island. While on various days a white plume originating from Mount Curry was visible in satellite imagery, the images from 19th and 20th November and the 6th December stood out for me. Especially as it looks like there was some possible ash content in the November plumes.

Emission on 19th November 2016. SOURCE: Aqua/MODIS/NASA.

Possible emission on 20th November 2016. SOURCE: Aqua/MODIS/NASA.

Emission on 6th December 2016. SOURCE: Aqua/MODIS/NASA.

Saunders Island catch ups December 2016

As I was busy at the time I wasn't able to get round to this post sooner, but a thermal anomaly was detected on Saunders Island at times indicating that some sort of activity on Mount Michael Volcano went on since November. According to data on the MODVOLC website, a thermal anomaly was detected on Mount Michael during the days 3rd, 20th, 21st, and 24th November and most recently, on the 17th December.

Most recent hotspot detection on Saunders Island as of 17th December. SOURCE: MODVOLC.