One of the gases emitted from the Mauna Loa eruption is SO2. The 0223 UTC 30 November update from this site notes that emission rates of approximately 250,000 tonnes [sic] per day were measured on 28 November! What satellite products can be used to diagnose this gas qualitatively and quantitatively? There is... Read More
Mauna Loa on the Big Island of Hawai’i became active overnight, ending a quiescent phase that started back in 1984 — the longest period of dormancy for this Volcano since the 1800s. The Ash Probability animation above, combining both GOES-17 PACUS and GOES-17 Full Disk imagery (using imagery from this site)... Read More
GOES-16 (GOES-East) Mid-level Water Vapor (6.9 µm) images (above) showed the circulation associated with an anomalously-deep middle tropospheric cutoff low as it moved from northern Mexico across Texas during the 1301 UTC on 25 November to 2101 UTC on 26 November 2022 time period. Elevated convective elements rotating within the cutoff low helped to... Read More
The Ahyi Seamount is an underwater volcano in the northern Marianas that rises to within 137 m of the Pacific Ocean surface (Click here for more information). VIIRS True-color imagery within the past week shows discoloration in the ocean over the seamount location, suggestive of some sort of eruptive activity. (See this News Article). The image above... Read More
