Mount Marapi Erupts on Monday Afternoon, Activity Level at Alert

Mount Marapi in West Sumatra erupted again on Monday (26/1/2026) at 11:11 AM WIB. In the last week, Mount Marapi has only erupted once.

Reporting eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) through the MAGMA Indonesia application, the observed ash column height reached 600 meters above the peak (3,491 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 30.4 millimeters and a duration of 34 seconds.

(Read: Despite the Rain, Jakarta's Air Quality is Still Poor)

According to the MAGMA Indonesia volcanic activity report, Mount Marapi's activity level is at Level II (Alert). Seismicity observations on January 26, 2026, from 00:00-23:59 WIB showed 1 eruption earthquake with an amplitude of 27.5 millimeters and a duration of 28 seconds.

Then, 1 exhalation earthquake with an amplitude of 0.9 millimeters and a duration of 32 seconds, and 1 non-harmonic tremor with an amplitude of 0.8 millimeters and a duration of 92 seconds occurred.

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

Throughout 2026, MAGMA Indonesia has recorded 342 volcanic eruptions across Indonesia. Mount Semeru in East Java had the most eruptions (184 times), while Mount Marapi erupted 9 times.

(Read: West Kalimantan Has the Worst Air Quality in Indonesia This Morning (Friday, August 18, 2023))