M4.6 earthquake 175 km N of Tobelo, Indonesia
A magnitude 4.6 earthquake struck 175 km N of Tobelo, Indonesia on Fri, Aug 7, 1981, 2:43 PM GMT+9 (05:43 UTC), 80 km (50 mi) below the surface.
A larger quake followed: M5.2 126 km N 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
- 4.6 (mb), light
- Local time
- UTC
- 1981-08-07 05:43:18 UTC
- Depth
- 80.0 km (49.7 mi), intermediate-depth
- Epicenter
- 3.312° N, 127.916° 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 1.6 and up: 2 in the 60 days after this one and 4 in the 30 days before it.
After
- 4.2172 km N of Tobelo, Indonesia · 16451 days ago · 33 km deep · 30 km away
- 5.2126 km N of Tobelo, Indonesia · 16437 days ago · 79 km deep · 51 km away
Before
- 5.4192 km N of Tobelo, Indonesia · 16498 days ago · 33 km deep · 39 km away
- 4.7north of Halmahera, Indonesia · 16508 days ago · 100 km deep · 42 km away
- 4.8252 km N of Tobelo, Indonesia · 16509 days ago · 122 km deep · 78 km away
- 4.8162 km NNE of Tobelo, Indonesia · 16512 days ago · 33 km deep · 76 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001f5b. Read Tue, Sep 22, 2026, 11:28 PM UTC.