Mount Semeru Erupts on Thursday Afternoon, Alert Level Remains at Waspada

Mount Semeru in East Java erupted again on Thursday, August 1, 2024, at 12:20 WIB (Western Indonesian Time). In the last week, Mount Semeru has erupted 22 times.

Based on eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the eruption was not visually observed. The eruption of Mount Semeru was still ongoing at the time of this report.

According to the MAGMA Indonesia volcano activity report, Mount Semeru's activity level is at Level II (Alert). Observations of seismic activity from 00:00 to 23:59 WIB on August 1, 2024, showed 53 eruption quakes with amplitudes of 12-23 millimeters and durations of 61-156 seconds.

Furthermore, there were 9 guguran (rockfall) quakes with amplitudes of 2-5 mm and durations of 35-75 seconds, and 4 emission quakes with amplitudes of 4-8 millimeters and durations of 45-58 seconds.

PVMBG advises against any activity in the southeast sector along Besuk Kobokan, up to 8 kilometers from the summit (eruption center). Outside this distance, the public should not engage in activities within 500 meters of the riverbank (river buffer zone) along Besuk Kobokan due to the potential for pyroclastic flow and lava flows extending up to 13 kilometers from the summit.

During 2024, MAGMA Indonesia has recorded 2,248 volcanic eruptions/eruptions throughout Indonesia. Mount Semeru in East Java has experienced the most eruptions, with 778 recorded events.