Mount Semeru Erupts Early Saturday Morning, Alert Level Raised

Mount Semeru in East Java erupted again on Saturday, May 4, 2024, at 03:06 WIB (Western Indonesian Time). In the last week, Mount Semeru has erupted 11 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 22 millimeters and a duration of 122 seconds.

According to the MAGMA Indonesia volcano activity report, Mount Semeru's activity level is at Level III (Alert). Observations of seismic activity on May 4, 2024, from 18:00 to 23:59 WIB, showed 11 eruption quakes with amplitudes of 13-21 millimeters and durations of 55-112 seconds.

Furthermore, there was 1 puffing quake with an amplitude of 6 millimeters and a duration of 52 seconds, and 1 deep volcanic quake with an amplitude of 6 millimeters, an s-p time of 3.22 seconds, and a duration of 8 seconds.

PVMBG advises against any activity in the southeast sector along the Besuk Kobokan river, 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 along the Besuk Kobokan river due to the potential for pyroclastic flow and lahar flows extending up to 17 kilometers from the summit.

During 2024, MAGMA Indonesia has recorded 622 volcanic eruptions/eruptions throughout Indonesia. Mount Semeru in East Java has experienced the most eruptions, with 207 recorded events.