Alert! Mount Semeru Erupted Again Early This Morning (Thursday, 21 May 2026)
- A Small
- A Medium
- A Bigger
Mount Semeru in East Java erupted again on Thursday (21/5/2026) at 04.38 WIB. Over the past week, Mount Semeru has erupted 16 times.
According to eruption data from the Centre for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the observed ash column reached approximately 500 metres above the summit, or 4176 metres above sea level.
The ash column appeared white to grey, with thick density drifting southeast and south. This eruption was recorded on seismograph with maximum amplitude 22 mm and duration 152 seconds.
(Read also: Indonesia Will Be Flooded With Imported Pickup Trucks: Sales Figures Up To 2025)
Per MAGMA Indonesia volcanic activity reports, Mount Semeru is currently at Activity Level III (Alert Status). Seismic monitoring between 18.00–23.59 WIB on 21 May 2026 recorded 20 eruption earthquakes with 12–22 mm amplitude and 50–149 second duration.
Additionally, 1 rockfall earthquake (5 mm amplitude, 38 second duration) and 2 emission earthquakes (4–8 mm amplitude, 38–41 second duration) were detected.
PVMBG prohibits all activities in the southeast sector along the Besuk Kobokan river valley within 13 km of the summit. Outside this radius, public activity is forbidden within 500 metres of the Besuk Kobokan river banks, as pyroclastic flows and lahar may reach up to 17 km from the summit.
During 2026, MAGMA Indonesia has logged 2079 volcanic eruptions across the country. Mount Semeru (East Java) accounts for the highest number with 1045 recorded eruptions.
(Read also: Distribution Of Fatalities From Floods And Landslides In West Sumatra (9 December 2025))
"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 | % | |
|---|---|---|---|
| Economic growth | 5,11% | +0.08 | |
| Gini rasio (Sem2) | 0,38 | 0.00 | |
| PDB ADHK (Q1) | 3.447,70 | -0.77 | |
| Nilai Tukar USDIDR | 18 | +0.30 | |
| Neraca perdagangan (Mar) | 3,32 | +160.82 | |
| Ekspor Migas (Mar) | 1,28 | +18.60 | |
| Impor Migas (Mar) | 3,17 | +58.74 | |
| Ekspor (Mar) | 22,53 | +1.62 | |
| Impor (Mar) | 19,21 | -8.08 | |
| Kunjungan Wisman (Feb) | 1,16 | -2.42 | |
| Inflasi yoy (Apr) | 2,42% | -1.06 | |
| Inflasi mom (Apr) | 0,13% | -0.28 | |
| Persentase kemiskinan (Des) | 7,50% | -0.75 | |
| NTP (Apr) | 112,29 | +0.43 |
Trending Topics
Popular Data
