3.4
Earthquake Details: Kep. Mentawai region, Indonesia
Sep 21, 2026, 18:14:49
A magnitude 3.4 earthquake occurred near Kep. Mentawai region, Indonesia on Sep 21, 2026 at 18:14:49. The seismic event was recorded at a depth of -36 km. No tsunami warning was issued.
No Tsunami WarningStatus: ReviewedType: Earthquake
Regional Seismicity
Technical Details
Depth-36 km
Significance0
Latitude-1.9800
Longitude99.3900
Event IDemsc:20260921_0000330
Magnitude3.4
Updated:Sep 21, 2026, 18:21:29 UTC
External Resources
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Time & depth
- Local time
- Sep 22, 2026, 01:14:49 GMT+7
- UTC
- Sep 21, 2026, 18:14:49 UTC
-36 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
Nearby major cities
Nearby event sequence · 9
M3.2northern Sumatra, IndonesiaBeforeM3.0northern Sumatra, IndonesiaBeforeM3.4southern Sumatra, IndonesiaBeforeM3.8southern Sumatra, IndonesiaBeforeM4.4southern Sumatra, IndonesiaBeforeM3.1Nias region, IndonesiaAfterM4.3northern Sumatra, IndonesiaAfterM3.7Kepulauan Batu, IndonesiaAfterM2.6southern Sumatra, IndonesiaAfter
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Earthquake information is automatically aggregated from the official seismic agencies listed below. Preliminary measurements can change as agencies review an event; use local emergency authorities for safety decisions. Latest successful data update: Sep 21, 2026, 18:21 UTC.
Data sources:
- USGS — Credit: U.S. Geological Survey.
- EMSC — Credit: EMSC/CSEM. Event catalogue data are provided under CC BY 4.0. CC BY 4.0
- JMA — Source: Japan Meteorological Agency (JMA).
- Geoscience Australia — Based on Australian Earthquakes data by Geoscience Australia. © Commonwealth of Australia. Licensed under CC BY 4.0; the section 5 disclaimer applies. CC BY 4.0
- GeoNet — We acknowledge the New Zealand GeoNet programme and its sponsors NHC, Earth Sciences NZ, LINZ, NEMA and MBIE for providing earthquake data.