Mount Semeru Erupts Tuesday Morning, Status Raised to Alert

Mount Semeru in East Java erupted again on Tuesday, January 30, 2024, at 10:53 WIB (Western Indonesian Time). In the last week, Mount Semeru has erupted 10 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 was recorded on a seismograph with a maximum amplitude of 23 millimeters and a duration of 102 seconds.

According to the MAGMA Indonesia volcano activity report, Mount Semeru's activity level is at Level III (Alert). Observations of seismic activity on January 30, 2024, from 00:00 to 06:00 WIB, showed 19 eruption quakes with amplitudes of 15-22 millimeters and durations of 45-145 seconds. There was also 1 distant tectonic earthquake with an amplitude of 17 millimeters, an S-P time of 15 seconds, and a duration of 35 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 buffer zone) along Besuk Kobokan due to the potential for pyroclastic flow and lahar flows extending up to 17 kilometers from the summit.

During 2024, MAGMA Indonesia has recorded 129 volcanic eruptions/eruptions throughout Indonesia. Mount Lewotobi Laki-laki in East Nusa Tenggara had the most eruptions (49 times), while Mount Semeru erupted 21 times.