Updated

The Smithsonian/USGS Weekly Volcanic Activity report for Sep 10-16, 2026 detailed continuing eruptive activity at multiple volcanoes worldwide, including Strombolian eruptions and an ash plume rising 2.1 km at Krakatau (Indonesia), ongoing incandescence and SO2 emissions at Aira/Sakurajima (Japan), persistent ash plumes at Dukono, Ibu, Karangetang and Lewotolok (Indonesia), continuing unrest at Kanlaon and Mayon (Philippines), slow lava effusion at Great Sitkin (Alaska, US) and Kilauea's ongoing summit eruption (Hawaii, US), and lava flows/thermal anomalies at Klyuchevskoy and Krasheninnikov (Russia). All reported activity remained at low-to-moderate alert levels (generally Level 2 or Yellow) with localized ashfall and gas emissions but no reported casualties or major damage, consistent with routine ongoing volcanic unrest rather than new crises.