Have guests in town, so I’m a little busy, but you can hopefully keep entertained with the latest Smithsonian/USGS Global Volcanism Program Volcanic Activity Report.
Chile’s Melimoyu volcano.
- Alaska’s Cleveland volcano has been reduced to and alert status of “unassigned” (used when a volcano is not closely monitored so AVO doesn’t know what exactly is “background”) after a few weeks of activity. The same was done for the submarine volcano south of Sarigan in the Marianas Islands after no signs of activity since the eruption a few weeks ago.
- Chile’s Melimoyu has seen increased long-period seismic tremor over the past week, enough so that the SERNAGEOMIN increased the alert status to Green Level 2. All the earthquakes are less than 15 km underneath the volcano, but no other signs of activity were noted in the report.
- Karymsky, on Russia’s Kamchatka Peninsula, continues to make noise, with ash plumes reaching 2.6-6.1 km (8,200-20,000 feet) and a thermal anomaly at the summit.
- Eruptions readers have been talking about the recent activity at Japan’s Sakurajima. The volcano experiences frequent explosions and this week produced ash plumes that reached as high as 3 km (10,000 feet). You can check out the activity on the webcam for the volcano.