M5.5 earthquake 150 km N of Tobelo, Indonesia
A magnitude 5.5 earthquake struck 150 km N of Tobelo, Indonesia on Sat, Aug 27, 1966, 11:36 AM GMT+9 (02:36 UTC), 190 km (118 mi) below the surface.
A larger quake followed: M7.7 90 km NE 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
- 1966-08-27 02:36:36 UTC
- Depth
- 190.0 km (118.1 mi), intermediate-depth
- Epicenter
- 3.087° N, 127.949° 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
- ±0.47
- 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 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 iscgem844961. Read Tue, Sep 22, 2026, 7:49 AM UTC.