M4.7 earthquake 115 km ESE of Gorontalo, Indonesia
A magnitude 4.7 earthquake struck 115 km ESE of Gorontalo, Indonesia on Thu, Aug 21, 1986, 8:40 PM GMT+8 (12:40 UTC), 113 km (70 mi) below the surface.
A larger quake followed: M5.1 80 km SSE of Gorontalo, Indonesia. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.7 (mb), light
- Local time
- UTC
- 1986-08-21 12:40:10 UTC
- Depth
- 112.6 km (70.0 mi), intermediate-depth
- Epicenter
- 0.076° N, 123.995° 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 1.7 and up: 3 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 usp0002xcx. Read Tue, Sep 22, 2026, 9:41 AM UTC.