Welcome the #7 of our weekly eruptions report. This week appears to have been a fairly quiet one according to the VAAC reports with fewer eruptions reported than previous weeks.
The trend from last week continues with occasional ash plumes and discreet emissions sent up to 18000 feet. Just as I was finishing my notes for the week bemoaning the lack of images of any note, this happened :
Fuego appears to also be continuing its trend from last week, with only one notable event listed on the Washington VAAC data, which was an emission detected by satellite sent up to 14000 feet on the 15th.
Rejoining the report after a quiet period is El Popo. Light Ash was reported starting on the 11th and appearing to increase in activity with plumes reaching 22000 feet on the 13th before going quiet again. One other note, the VAAC report from the 12th reported “VA OBS in webcam cascading down the flanks of the summit”.
This week we have two reports of activity from Reventador. On the 15th a MWO pilot reported ash from the volcano up to 21000 feet and further reports on the 16th of ash to 18000 feet.
Just the one report from Washington VAAC regarding activity at Ruiz. Ash was reported at 24000 feet, but it doesn’t say where this report came from as the ash was not visible from satellite images or on the webcams.
The big volcano of the past few weeks has appeared to reduce in it’s activity causing the scientist who writes the VAAC report to comment the activity has “markedly decrease from past several days” and this shows in the VAAC reports. Bursts of activity were reported on the 11th, 13th and 15th with plumes sent up to 23000 feet, a hotspot was also visible on the IR views of the volcano.
I am not sure when this image was taken, but i just had to include it.
Dukono shows no sign of change in its pattern of recent weeks. A continuous plume is emitting from the volcano up to 8000 feet every day over recent times.
I discovered this video on the LaCultureVolcan blog and the article (in french) goes on to explain a bit more on the current eruptive state of Dukono.
Sinabung is another Indonesian the appears to have no inclination in slowing down with daily reports of eruptions of ash sent up to 12-16000 feet.
Heading into the Tokyo VAAC area of interest, we find that Alaid in the Kuril Islands has reports of two “possible eruptions” on the 11th and 12th of March. Both of these were reported via satellite and sent plumes to around 9000 feet.
Only one report this week from Sakurajima with an eruption reported on the 11th that reached 9000 feet.
Satellite data suggests that from the 11th-14th of March, Sheveluch sent ash into the air on most days at least once, with data suggesting that it was particularly restless on the 11th when it sent a plume to 18000 feet, and the 12th when it appears that ash was persistently erupted all day.
Copahue continues it’s pattern of light ash and steam emissions throughout the past week with daily reports of light ash up to 12000 feet.
Finally, we come to our only new addition this week. Lascar Volcano in Chile had a pilot report of ash and the webcam showed a gas/steam emission from the summit. No further information was available at the time of writing.
So there we have it, as I said a much shorter report with few erupting volcanoes (as reported by the VAACs) and even those that have been eruption seem to have taking pause this week.