M4.4 earthquake 54 km NNE of Luwuk, Indonesia
A magnitude 4.4 earthquake struck 54 km NNE of Luwuk, Indonesia on Mon, Apr 20, 1987, 10:08 AM GMT+8 (02:08 UTC), 59 km (36 mi) below the surface.
A larger quake followed: M4.6 57 km SE of Gorontalo, Indonesia. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.4 (mb), light
- Local time
- UTC
- 1987-04-20 02:08:21 UTC
- Depth
- 58.5 km (36.4 mi), shallow
- Epicenter
- 0.534° S, 123.048° E
- Region
- Indonesia
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Depth from
- FROM_LOCATION
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 2 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayIndonesia earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00034a2. Read Tue, Sep 22, 2026, 12:10 PM UTC.