Mount Marapi Erupts Again This Morning (Tuesday, August 12, 2025)

Mount Marapi in West Sumatra erupted again on Tuesday (August 12, 2025) at 08:39 AM WIB. In the last week, Mount Marapi has erupted twice.

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 around 1,600 meters above the peak or 4,491 meters above sea level.

The ash column was observed to be white to gray with thick intensity towards the northeast. Mount Marapi's eruption was still ongoing when this report was made.

(Read: Global Economic Losses Due to Floods Decreased in 2023)

According to MAGMA Indonesia's volcano activity report, Mount Marapi's activity level is at Level II (Alert). Seismic observations on August 12, 2025, from 00:00-23:59 WIB showed 2 non-harmonic tremors with amplitudes of 1-1.1 millimeters and earthquake durations of 111-116 seconds.

Furthermore, 3 shallow volcanic earthquakes with amplitudes of 0.8-1.3 millimeters and earthquake durations of 9-14 seconds, and 13 deep volcanic earthquakes with amplitudes of 0.8-1.5 millimeters s-p 1.3-1.9 seconds and earthquake durations of 10-17 seconds occurred.

PVMBG urges the public around Mount Marapi and hikers/visitors/tourists not to enter and not to conduct activities within a 3-kilometer radius from the center of activity (Verbeek Crater) of Mount Marapi.

Throughout 2025, MAGMA Indonesia has recorded 5,574 volcanic eruptions/eruptions across Indonesia. Mount Semeru in East Java erupted the most (2,230 times) while Mount Marapi erupted 85 times.

(Read: Jakarta Roads Still Flooded (July 9, 2025 at 09:00 AM WIB))