Mount Semeru Erupts Again This Morning, Ash Reaches 600 Meters Above the Peak

Mount Semeru in East Java erupted again on Saturday, December 7, 2024, at 08:27 WIB (Western Indonesian Time). In the last week, Mount Semeru has erupted 79 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 600 meters above the peak (4,276 meters above sea level).

The ash column was observed to be white to gray with moderate intensity towards the northeast. The eruption of Mount Semeru was still ongoing at the time of this report.

According to the MAGMA Indonesia volcanic activity report, Mount Semeru's activity level is at Level II (Alert). Observations of seismic activity on December 7, 2024, from 00:00 to 23:59 WIB, showed 86 eruption quakes with amplitudes of 10-22 millimeters and durations of 62-150 seconds.

Furthermore, there were 2 guguran (rockfall) quakes with amplitudes of 2-3 mm and durations of 55-90 seconds, and 18 emission quakes with amplitudes of 5-8 millimeters and durations of 40-84 seconds.

PVMBG advises against any activity in the southeast sector along Besuk Kobokan, up to 8 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 13 kilometers from the peak.

During 2024, MAGMA Indonesia recorded 5,765 volcanic eruptions/eruptions throughout Indonesia. Mount Ibu in North Maluku had the most eruptions (2,383 eruptions), while Mount Semeru erupted 2,014 times.