Mount Semeru Erupts on Thursday Afternoon, Alert Level Raised

Mount Semeru in East Java erupted again on Thursday, July 4, 2024, at 5:25 PM WIB. In the last week, Mount Semeru has erupted 38 times.

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

According to the MAGMA Indonesia volcano activity report, the activity level of Mount Semeru is at Level III (Alert). Seismic observations on July 4, 2024, from 6:00 AM to 12:00 PM WIB showed 35 eruption quakes with amplitudes of 16-22 millimeters and durations of 78-132 seconds.

Furthermore, there were 3 rockfall quakes with amplitudes of 2-6 mm and durations of 60-73 seconds, and 5 emission quakes with amplitudes of 4-8 millimeters and durations of 41-74 seconds.

PVMBG advises against any activity in the southeast sector along the Besuk Kobokan river, up to 13 kilometers from the summit (eruption center). Outside this distance, the public should not engage in activities within 500 meters of the riverbank along the Besuk Kobokan river due to the potential for pyroclastic flow and lahar flows extending up to 17 kilometers from the summit.

During 2024, MAGMA Indonesia has recorded 1,438 volcanic eruptions/eruptions throughout Indonesia. Mount Semeru in East Java has experienced the most eruptions, with 635 recorded events.