M5.1 earthquake 152 km WNW of Tobelo, Indonesia
A magnitude 5.1 earthquake struck 152 km WNW of Tobelo, Indonesia on Mon, Aug 20, 1973, 1:43 PM GMT+9 (04:43 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M5.2 204 km NW 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
- 5.1 (mb), moderate
- Local time
- UTC
- 1973-08-20 04:43:54 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 2.134° N, 126.699° 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
- Stations used
- 21
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.1 and up: 2 in the 60 days after this one and 1 in the 30 days before it.
After
- 5.2204 km NW of Tobelo, Indonesia · 19390 days ago · 62 km deep · 90 km away
- 5.0173 km NW of Tobelo, Indonesia · 19353 days ago · 33 km deep · 52 km away
Before
Earthquakes todayIndonesia earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp000034p. Read Tue, Sep 22, 2026, 11:16 AM UTC.