Great Sitkin (ORANGE/WATCH): Nothing to see but clouds.
Associated Keywords:
Cloud cover: cloudy;


Shishaldin (YELLOW/ADVISORY): Some steam visible during clear views, and a very slight mid-IR signature at the summit crater overnight suggestive of slightly elevated temperatures in the conduit. No sign of significant morphology changes with a new SAR image yesterday.





Associated Images:
Shishaldin_20260112_VIIRS_MIR.png
shishaldin_brpk-20260112T033100Z.jpg

Associated Keywords:
Volcanic clouds: steam/water;
Elevated surface temperatures: barely elevated;
Cloud cover: partly cloudy;


Atka volcanic complex (GREEN/NORMAL): No obvious surfrace changes in a new SAR image, but it's a bit hard to pick out as the looped images are still shifting around a bit.
Associated Keywords:
Cloud cover: cloudy;


Very clear conditions over the Katmai area shows the usual mid-IR signature of Martin, Mageik, and Katmai crater lakes.

To view these and other satellite data, please use http://volcview.wr.usgs.gov/

Duty person can be reached at (907) 786-7481 if you have any questions.

Last image viewed: 12 Jan 2026 14:20 UTC