M6.4 earthquake 108 km NNE of Lospalos, Timor Leste
A magnitude 6.4 earthquake struck 108 km NNE of Lospalos, Timor Leste on Mon, Dec 12, 1983, 5:26 PM GMT+8 (09:26 UTC), 137 km (85 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 6.4 (mw), strong
- Local time
- UTC
- 1983-12-12 09:26:07 UTC
- Depth
- 136.9 km (85.1 mi), intermediate-depth
- Epicenter
- 7.583° S, 127.288° E
- Region
- Timor Leste
- Strongest shaking
- V, moderate shaking
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Shaking
The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.
- Strongest estimated
- V, moderate shaking
- Peak ground acceleration
- 5.4% of gravity
- Peak ground velocity
- 0.9 cm/s
- Map
- Automatic
Did you feel it?
No one has reported feeling this quake to the USGS.
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.5 and up: 1 in the 60 days after this one and 4 in the 30 days before it.
After
Before
- 5.2162 km NE of Lospalos, Timor Leste · 15638 days ago · 180 km deep · 91 km away
- 7.3172 km NE of Lospalos, Timor Leste · 15643 days ago · 179 km deep · 98 km away
- 4.3181 km N of Baukau, Timor Leste · 15648 days ago · 414 km deep · 98 km away
- 4.7108 km NNE of Lospalos, Timor Leste · 15651 days ago · 121 km deep · 13 km away
Earthquakes todayTimor Leste earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00020eu (also filed as gcmtb121283a, gcmt19831212092609, iscgem562756). Read Tue, Sep 22, 2026, 10:52 AM UTC.