M4.5 earthquake 99 km NNE of Colonia, Micronesia
A magnitude 4.5 earthquake struck 99 km NNE of Colonia, Micronesia on Fri, Jan 17, 1986, 1:45 PM GMT+9 (04:45 UTC), 45 km (28 mi) below the surface.
A larger quake followed: M4.7 130 km NNE of Colonia, Micronesia. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.5 (mb), light
- Local time
- UTC
- 1986-01-17 04:45:19 UTC
- Depth
- 44.5 km (27.7 mi), shallow
- Epicenter
- 10.290° N, 138.583° E
- Region
- Micronesia
- 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
Nearby
Within 100 km, magnitude 1.5 and up: 2 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayMicronesia earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002q51. Read Tue, Sep 22, 2026, 4:05 PM UTC.