M5.5 earthquake 138 km WNW of Tobelo, Indonesia
A magnitude 5.5 earthquake struck 138 km WNW of Tobelo, Indonesia on Tue, Feb 23, 1971, 7:08 AM GMT+9 (22:08 UTC), 24 km (15 mi) below the surface.
A larger quake followed: M5.6 151 km WNW of Tobelo, Indonesia. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.5 (mw), moderate
- Local time
- UTC
- 1971-02-22 22:08:28 UTC
- Depth
- 23.7 km (14.7 mi), shallow
- Epicenter
- 2.160° N, 126.837° 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.
- Magnitude uncertainty
- ±0.20
- Depth from
- From location
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 2 in the 30 days before it.
After
Before
Earthquakes todayIndonesia earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem787618. Read Mon, Sep 28, 2026, 9:18 AM UTC.