M4.2 earthquake 160 km NW of Tual, Indonesia
A magnitude 4.2 earthquake struck 160 km NW of Tual, Indonesia on Sat, Oct 31, 1987, 10:01 PM GMT+9 (13:01 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M4.4 98 km WNW of Tual, Indonesia. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.2 (mb), light
- Local time
- UTC
- 1987-10-31 13:01:30 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 4.570° S, 131.759° 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: 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 usp00039sr. Read Tue, Sep 22, 2026, 9:18 PM UTC.