Report on Semeru (Indonesia) — October 2020 Format Managing Editor: Edward Venzke. Edited by Kadie L. Bennis. Research and preparation by Berger. Semeru (Indonesia) Please cite this report as: Global Volcanism Program, 2020. Report on Semeru (Indonesia) (Bennis, K.L., and Venzke, E., eds.). Bulletin of the Global Volcanism Network, 45:10. Smithsonian Institution. Semeru All times are local (unless otherwise noted) Semeru in eastern Java, Indonesia, has been erupting almost continuously since 1967 and is characterized by ash plumes, pyroclastic flows, lava flows and lava avalanches down drainages on the SE flanks. The Alert Level has remained at 2 (on a scale of 1-4) since May 2012, and the public reminded to stay outside of the general 1-km radius from the summit and 4 km on the SSE flank. This report updates volcanic activity from March to August 2020, using primary information from the Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as Indonesian Center for Volcanology and Geological Hazard Mitigation, CVGHM), the Darwin Volcanic Ash Advisory Centre (VAAC), and satellite data.