Warning! Mount Semeru Erupts Again Tonight (Saturday, April 20, 2024)

Mount Semeru in East Java erupted again on Saturday, April 20, 2024, at 11:56 PM WIB. In the last week, Mount Semeru has erupted 9 times.

Based on eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the ash column height was observed to be approximately 500 meters above the peak (4,176 meters above sea level).

The ash column was observed to be white to gray with moderate intensity towards the south. 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 III (Alert). Seismic observations on April 20, 2024, from 12:00 PM to 6:00 PM WIB showed 7 eruption quakes with amplitudes of 13-22 millimeters and durations of 63-110 seconds.

Then, there was 1 rockfall quake with an amplitude of 6 mm and a duration of 51 seconds, and 2 emission quakes with amplitudes of 6-8 millimeters and durations of 47-51 seconds.

PVMBG advises against any activity in the southeast sector along Besuk Kobokan, up to 13 kilometers from the peak (eruption center). Outside this distance, people 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 lahar flows extending up to 17 kilometers from the peak.

During 2024, MAGMA Indonesia has recorded 562 volcanic eruptions/eruptions throughout Indonesia. Mount Semeru in East Java has had the most eruptions, with 181 eruptions.