M6.6 earthquake 245 km NNE of Palu, Indonesia
A magnitude 6.6 earthquake struck 245 km NNE of Palu, Indonesia on Fri, Oct 28, 1983, 3:43 AM GMT+8 (19:43 UTC), 28 km (17 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 6.6 (mw), strong
- Local time
- UTC
- 1983-10-27 19:43:48 UTC
- Depth
- 27.7 km (17.2 mi), shallow
- Epicenter
- 1.093° N, 120.833° E
- Region
- Indonesia
- Strongest shaking
- VI, strong 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
- VI, strong shaking
- Peak ground acceleration
- 21.0% of gravity
- Peak ground velocity
- 2.8 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: 6 in the 60 days after this one and 2 in the 30 days before it.
After
- 5.1163 km NNE of Palu, Indonesia · 15654 days ago · 591 km deep · 82 km away
- 4.9222 km WNW of Gorontalo, Indonesia · 15654 days ago · 159 km deep · 45 km away
- 5.2231 km NNE of Palu, Indonesia · 15653 days ago · 33 km deep · 48 km away
- 5.2256 km WNW of Gorontalo, Indonesia · 15644 days ago · 17 km deep · 18 km away
- 4.8175 km NNE of Palu, Indonesia · 15627 days ago · 232 km deep · 71 km away
- 5.0257 km WNW of Gorontalo, Indonesia · 15611 days ago · 17 km deep · 36 km away
Before
Earthquakes todayIndonesia earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001zb4 (also filed as gcmtb102783a, gcmt19831027194349, atlas19831027194350, iscgem567307). Read Tue, Sep 22, 2026, 10:30 PM UTC.