M5.0 earthquake 185 km SSW of Sofifi, Indonesia
A magnitude 5.0 earthquake struck 185 km SSW of Sofifi, Indonesia on Mon, Oct 17, 1977, 7:33 PM GMT+9 (10:33 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M5.6 200 km SSW of Ternate, Indonesia. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.0 (mb), moderate
- Local time
- UTC
- 1977-10-17 10:33:16 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 0.868° S, 127.069° 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
- 15
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.0 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 usp0000r2x. Read Mon, Sep 21, 2026, 8:30 AM UTC.