Mount Semeru Erupts Again This Morning (Friday, January 10, 2025)

Mount Semeru in East Java erupted again on Friday, January 10, 2025, at 09:53 WIB (Western Indonesian Time). In the last week, Mount Semeru has erupted 73 times.

Based on eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the height of the ash column was observed to be approximately 500 meters above the peak (4,176 meters above sea level).

The ash column was observed to be gray to brown in color with thick intensity towards the north and northeast. The eruption was recorded on a seismograph with a maximum amplitude of 22 millimeters and a duration of 136 seconds.

According to the MAGMA Indonesia volcano activity report, Mount Semeru's activity level is at Level II (Alert). Observations of seismic activity on January 10, 2025, from 00:00 to 23:59 WIB, showed 56 eruption quakes with amplitudes of 10-22 millimeters and durations of 49-169 seconds.

Furthermore, there was 1 rockfall earthquake with an amplitude of 3 mm and a duration of 66 seconds, and 5 emission quakes with amplitudes of 6-8 millimeters and durations of 44-67 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 boundary) along Besuk Kobokan due to the potential for pyroclastic flow and lahar flows extending up to 13 kilometers from the peak.

During 2025, MAGMA Indonesia has recorded 209 volcanic eruptions/eruptions throughout Indonesia. Mount Semeru in East Java has experienced the most eruptions, with 135 eruptions.