Mount Semeru Erupts on Tuesday Afternoon, Alert Level Raised

Mount Semeru in East Java erupted again on Tuesday, April 23, 2024, at 11:34 WIB (Western Indonesian Time). This marks the second eruption in the past week.

Based on eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the eruption was not visually observed. The eruption was recorded on a seismograph with a maximum amplitude of 23 millimeters and a duration of 97 seconds.

According to the MAGMA Indonesia volcano activity report, Mount Semeru's alert level is at Level III (Siaga/Alert). Observations of seismic activity from 00:00 to 06:00 WIB on April 23, 2024, showed 9 eruption quakes with amplitudes of 10-22 millimeters and durations of 62-157 seconds.

Furthermore, there were 3 emission quakes with amplitudes of 3-4 millimeters and durations of 30-101 seconds, and 1 harmonic tremor with an amplitude of 7 millimeters and a duration of 152 seconds.

PVMBG advises against any activity in the southeastern sector along the Besuk Kobokan river, within a 13-kilometer radius of the summit (eruption center). Outside this radius, the public should not engage in activities within 500 meters of the riverbanks along the Besuk Kobokan river due to the potential for pyroclastic flow and lava flows extending up to 17 kilometers from the summit.

During 2024, MAGMA Indonesia has recorded 574 volcanic eruptions across Indonesia. Mount Semeru in East Java has experienced the most eruptions, with 185 recorded events.