3.9
Earthquake Details: 77 km from Ruteng, East Nusa Tenggara, Indonesia
8/18/2026, 1:21:36 AM
A magnitude 3.9 earthquake occurred near 77 km from Ruteng, East Nusa Tenggara, Indonesia on 8/18/2026 at 1:21:36 AM. The seismic event was recorded at a depth of -10 km. No tsunami warning was issued.
No Tsunami WarningStatus: reviewedType: earthquake
Regional Seismicity
Technical Details
Depth-10 km
Significance0
Latitude-8.1000
Longitude120.9400
Event IDemsc:20260818_0000040
Magnitude3.9
Updated:8/18/2026, 1:28:27 AM
External Resources
View on EMSC Official SiteLoading map...
Time & depth
- Local time
- 8/18/2026, 9:21:36 AM GMT+8
- UTC
- 8/18/2026, 1:21:36 AM UTC
-10 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
Nearby major cities
Nearby event sequence · 12
M4.3Flores Region, IndonesiaBeforeM4.962 km N of Ruteng, IndonesiaBeforeM4.3Flores Region, IndonesiaBeforeM4.685 km NNW of Ende, IndonesiaBeforeM4.3Flores Region, IndonesiaBeforeM4.575 km NNW of Ende, IndonesiaBeforeM4.969 km NNW of Ende, IndonesiaBeforeM4.2Flores Region, IndonesiaBeforeM5.067 km NNW of Ende, IndonesiaBeforeM4.2Flores Region, IndonesiaBeforeM4.664 km NW of Ende, IndonesiaBeforeM4.2Flores SeaBefore
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: Aug 18, 2026, 01:28 AM 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.