Mount Marapi Erupts Again Tonight, Volcanic Ash Reaches Approximately 800 Meters

Mount Marapi in West Sumatra erupted again on Wednesday, April 16, 2025, at 11:37 PM WIB. In the last week, Mount Marapi has erupted 6 times.

Based on eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the observed ash column height reached 800 meters above the peak or 3,691 meters above sea level.

The ash column was observed to be gray with thick intensity towards the northeast. The eruption was recorded on a seismograph with a maximum amplitude of 30.1 millimeters and a duration of 52 seconds.

According to the MAGMA Indonesia volcano activity report, Mount Marapi's activity level is at Level II (Alert). Observations of seismic activity on April 16, 2025, from 00:00 to 23:59 WIB, showed 2 instances of tremor with amplitudes of 1-1.6 millimeters and durations of 47-126 seconds.

Furthermore, there was 1 local tectonic earthquake with an amplitude of 2.2 millimeters, an S-P time of 5.3 seconds, and a duration of 23 seconds; and 2 distant tectonic earthquakes with amplitudes of 4.7-4.8 millimeters, S-P times of 10.2-50.1 seconds, and durations of 36-99 seconds.

PVMBG advises the public around Mount Marapi and climbers/visitors/tourists not to enter or carry out activities within a 3-kilometer radius of the center of activity (Verbeek Crater) of Mount Marapi.

During 2025, MAGMA Indonesia has recorded 2,872 volcanic eruptions/eruptions throughout Indonesia. Mount Semeru in East Java had the most eruptions (1,309 eruptions), while Mount Marapi erupted 38 times.