Alert! Mount Semeru Erupted Again This Morning (Wednesday, 12 August 2026)
- A Small
- A Medium
- A Bigger
Mount Semeru in East Java erupted again on Wednesday (12/8/2026) at 06:52 WIB. Over the past week, Mount Semeru has erupted 22 times.
According to eruption data from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the observed ash column reached approximately 800 meters above the crater peak, or 4476 meters above sea level.
The ash column appeared white to grey, with thick density drifting northeast and east. This eruption was recorded on seismographs with maximum amplitude 22 mm and duration of 103 seconds.
(Read: Poor Air Quality in Jakarta Ranks Worse Than Other ASEAN Capitals)
Per MAGMA Indonesia volcanic activity reports, Mount Semeru is currently set at Alert Level III. Seismic monitoring between 00:00–06:00 WIB on 12 August 2026 recorded 20 eruption earthquakes with 10–42 mm amplitude and 45–153 second duration.
Additionally, 1 rockfall earthquake (2 mm amplitude, 85 seconds) and 6 degassing earthquakes (5–10 mm amplitude, 43–63 seconds) were detected.
PVMBG warns all activities are prohibited in the southeast sector along Besuk Kobokan up to 13 km from the summit. Outside this zone, public activity is forbidden within 500 meters of Besuk Kobokan river banks, as pyroclastic flows and lahar may reach up to 17 km from the peak.
For 2026 to date, MAGMA Indonesia has logged 3914 volcanic eruptions across Indonesia. Mount Semeru recorded the highest activity with 1599 eruptions.
(Read: Chad Ranked World's Worst Country for Air Quality 2024)
"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."
Related Data
Latest Data Stories
Market Data
| Name | Value | % | |
|---|---|---|---|
| Inflasi yoy (Jul) | 2,88% | -0.46 | |
| Inflasi mom (Jul) | -0,14% | -0.58 | |
| Economic growth | 5,11% | +0.08 | |
| Pertumbuhan ekonomi (yoy) (Q1) | 5,61% | +4.08 | |
| Persentase kemiskinan (Mar) | 8,07% | -0.18 | |
| Gini rasio (Sem2) | 0,38 | 0.00 | |
| Nilai Tukar USDIDR | 17.822 | +0.13 | |
| PDB ADHK (Q1) | 3.447,70 | -0.77 | |
| Neraca perdagangan (Jun) | -450,50 | -72.02 | |
| Ekspor Migas (Jun) | 1,07 | +40.52 | |
| Impor Migas (Jun) | 4,56 | +0.96 | |
| Ekspor (Jun) | 25,46 | +9.72 | |
| Impor (Jun) | 25,91 | +4.41 | |
| Kunjungan Wisman (Mei) | 1,38 | +10.69 | |
| NTP (Jul) | 116,16 | +1.32 |
Trending Topics
Popular Data
