M5.7 earthquake 40 km SE of Singkil, Indonesia
A magnitude 5.7 earthquake struck 40 km SE of Singkil, Indonesia on Sun, Jan 11, 1981, 10:09 PM GMT+7 (15:09 UTC), 69 km (43 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.7 (mb, body-wave), moderate
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1981-01-11 15:09:46 UTC
- Depth
- 69.0 km (42.9 mi), shallow
- Epicenter
- 2.059° N, 98.070° E
- Region
- Indonesia
- Strongest shaking
- IV, light shaking
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Magnitude estimates
Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.
| Mag. | Scale | Computed by | Notes |
|---|---|---|---|
| 5.7 | mb, body-wave | USGS National Earthquake Information Center | Preferred · Reviewed |
| 6.02 | Mw, moment | ISC-GEM global catalog | Final · ±0.1 |
| 6.0 | Mwc, centroid moment | Global CMT project | Preliminary |
Shaking
The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.
- Strongest estimated
- IV, light shaking
- Peak ground acceleration
- 4.5% of gravity
- Peak ground velocity
- 0.7 cm/s
- Map
- Automatic
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Stations used
- 212
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.7 and up: 0 in the 60 days after this one and 0 in the 30 days before it.
None recorded.
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001bp9 (also filed as gcmtb011181b, gcmt19810111150946, atlas19810111150946, iscgem632560). Read Thu, Oct 1, 2026, 8:04 AM UTC.