Mount Lewotobi Laki-laki Erupted on Friday Afternoon, Status Alert

Mount Lewotobi Laki-laki in East Nusa Tenggara erupted again on Friday (August 8, 2025) at 5:52 PM WITA. In the last week, Mount Lewotobi Laki-laki only erupted once.

Citing 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 700 meters above the peak (2,284 meters above sea level).

The ash column was observed to be gray with thick intensity towards the southwest and west. The eruption was recorded on a seismograph with a maximum amplitude of 4.4 millimeters and a duration of 58 seconds.

(Read: 10 Peat Hydrology Areas Most Prone to Forest and Land Fires in 2023)

According to MAGMA Indonesia's volcano activity report, the activity level of Mount Lewotobi Laki-laki is at Level IV (Alert). Seismic observations on August 8, 2025, from 12:00 PM to 6:00 PM WITA, showed 1 eruption earthquake with an amplitude of 4.4 millimeters and a duration of 58 seconds.

Furthermore, there were 12 non-harmonic tremors with amplitudes of 2.9-8.8 millimeters and durations of 64-136 seconds, and 6 low-frequency earthquakes with amplitudes of 3.7-7.4 millimeters and durations of 19-29 seconds.

PVMBG urges the public around Mount Lewotobi Laki-laki and visitors/tourists not to engage in any activities within a 6-kilometer radius and a 7-kilometer sectoral area from the southwest to the northeast of the Mount Lewotobi Laki-laki eruption center.

Throughout 2025, MAGMA Indonesia has recorded 5,515 volcanic eruptions across Indonesia. Mount Semeru in East Java erupted the most (2,207 times), while Mount Lewotobi Laki-laki erupted 449 times.

(Read: Indication of Forest and Land Fire Extent in East Kalimantan until June 2025)