Mount Semeru Erupts on Tuesday Night, Status Remains on Alert

Mount Semeru in East Java erupted again on Tuesday, August 20, 2024, at 7:22 PM WIB. In the last week, Mount Semeru has erupted 18 times.

According to 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 was recorded on a seismograph with a maximum amplitude of 23 millimeters and a duration of 105 seconds.

According to the MAGMA Indonesia volcano activity report, Mount Semeru's activity level is at Level II (Alert). Observations of seismic activity on August 20, 2024, from 00:00 to 23:59 WIB, showed 114 eruption quakes with amplitudes of 10-23 millimeters and durations of 49-170 seconds.

Furthermore, there was 1 rockfall earthquake with an amplitude of 4 mm and a duration of 65 seconds, and 4 ash emission quakes with amplitudes of 8-26 millimeters and durations of 36-47 seconds.

PVMBG advises against any activity in the southeast sector along Besuk Kobokan, 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 (river boundaries) along Besuk Kobokan due to the potential for the expansion of pyroclastic flows and lava flows up to 17 kilometers from the summit.

During 2024, MAGMA Indonesia has recorded 2,940 volcanic eruptions/eruptions throughout Indonesia. Mount Ibu in North Maluku had the most eruptions (1,089 eruptions), while Mount Semeru erupted 981 times.