Mount Lewotobi Laki-laki Erupts Again Tonight, Volcanic Ash Column Reaches 400 Meters Above Crater Peak
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Mount Lewotobi Laki-laki in East Nusa Tenggara erupted again on Tuesday (4/8/2026) at 22:15 WITA. This volcano has erupted 22 times over the past week.
According to eruption data from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the observed ash column reached 400 m above the crater peak, equivalent to 1984 m above sea level.
The grey ash plume moved with moderate intensity toward the southwest and west. This eruption registered on seismographs with 29.6 mm maximum amplitude and 130 seconds duration.
(Read: Number of Heavily Damaged Houses Due to Natural Disasters in Indonesia 2015-2024)
Per MAGMA Indonesia volcanic activity reports, Mount Lewotobi Laki-laki remains at Alert Level III (Standby). Seismic monitoring on 4 August 2026 06.00-12.00 WITA recorded 1 eruption earthquake (29.6 mm amplitude, 72 sec duration).
Additionally, 5 non-harmonic tremor events (4.4-7.4 mm amplitude, 75-117 sec duration) and 1 distant tectonic earthquake (7.4 mm amplitude, 78 sec S-P interval, 148 sec total duration) were detected.
PVMBG urges local residents, visitors and tourists to avoid all activity within a 5 kilometer radius from the eruption center of Mount Lewotobi Laki-laki.
As of 2026, MAGMA Indonesia has logged 3,720 volcanic eruptions nationwide. Mount Semeru (East Java) recorded the highest eruptions at 1527 events, while Mount Lewotobi Laki-laki registered 648 eruptions.
(Read: Hundreds of Natural Disasters Recorded by Early April 2024, Floods Most Frequent)
"Disclosure: This is an AI-generated translation of the original article. We strive for accuracy, but please note that automated translations may contain errors or slight inconsistencies."
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