M4.0 earthquake 138 km SSW of Komodo, Indonesia
A magnitude 4.0 earthquake struck 138 km SSW of Komodo, Indonesia on Wed, Dec 9, 1987, 2:36 AM GMT+8 (18:36 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M4.5 69 km S of Dompu, Indonesia. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.0 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1987-12-08 18:36:11 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 9.735° S, 118.985° 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
- OPERATOR_ASSIGNED
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 3 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.4Sumbawa region, Indonesia · 14170 days ago · 111 km deep · 58 km away
- 4.569 km S of Dompu, Indonesia · 14162 days ago · 33 km deep · 82 km away
- 3.3163 km S of Dompu, Indonesia · 14158 days ago · 33 km deep · 55 km away
Before
Earthquakes todayIndonesia earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0003b3b. Read Fri, Oct 2, 2026, 3:29 AM UTC.