M4.8 earthquake 182 km NNE of Colonia, Micronesia
A magnitude 4.8 earthquake struck 182 km NNE of Colonia, Micronesia on Tue, Jul 26, 1977, 1:56 AM GMT+9 (16:56 UTC), 33 km (21 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.8 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1977-07-25 16:56:01 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 11.032° N, 138.773° 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
- OPERATOR_ASSIGNED
- Stations used
- 16
Nearby
Within 100 km, magnitude 1.8 and up: 0 in the 60 days after this one and 0 in the 30 days before it.
None recorded.
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000pvk. Read Thu, Oct 1, 2026, 6:31 PM UTC.