Mount Semeru Erupts Again Today, Ash Column Reaches 500 Meters

Mount Semeru in East Java erupted again on Saturday, June 1, 2024, at 8:44 PM WIB. In the last week, Mount Semeru has erupted 20 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, or 4,176 meters above sea level.

The ash column was observed to be white to gray with moderate intensity towards the southwest. 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 June 1, 2024, from 12:00 PM to 6:00 PM WIB showed 34 eruption quakes with amplitudes of 10-22 millimeters and durations of 68-110 seconds.

Furthermore, there were 4 tremor quakes with amplitudes of 6-8 millimeters and durations of 37-42 seconds, and 1 harmonic tremor with an amplitude of 4 millimeters and a duration of 192 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 856 volcanic eruptions/eruptions throughout Indonesia. Mount Semeru in East Java has experienced the most eruptions, with 343 recorded events.