M4.6 earthquake Guam region
A magnitude 4.6 earthquake struck in the Guam region on Thu, Jun 9, 1977, 10:50 AM GMT+10 (00:50 UTC), 47 km (29 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.6 (mb), light
- Local time
- UTC
- 1977-06-09 00:50:44 UTC
- Depth
- 47.0 km (29.2 mi), shallow
- Epicenter
- 13.455° N, 145.765° E
- Region
- Guam
- 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.
- Stations used
- 11
Nearby
Within 100 km, magnitude 1.6 and up: 0 in the 60 days after this one and 0 in the 30 days before it.
None recorded.
Earthquakes todayGuam earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000p7a (also filed as iscgem697040). Read Tue, Sep 22, 2026, 9:36 PM UTC.