| Magnitude | 5.0 |
| Alert | Strong |
| Depth | 33.0 km |
| Coordinates | 12.683, 143.900 |
| UTC time | 1977-03-30 13:40:09.100 |
Earthquake details
Wednesday, March 30, 1977 Earthquake
The earthquake hit Guam on Wednesday, March 30, 1977 at 13:40 UTC with a magnitude of 5.0. The closest known location in the current dataset is Dededo Village (Guam - GU), about 137.8 km away. The epicenter is located at longitude 143.900 and latitude 12.683.
| Location | Dededo Village |
| Country | Guam (GU) |
| Severity | Strong |
Earthquake map 1977-03-30
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
M 5.0
Dededo Village
Guam · 2026-07-21 11:09 UTC
54.4 km
M 4.4
Dededo Village
Guam · 2026-07-02 23:21 UTC
75.8 km
M 4.0
Dededo Village
Guam · 2026-06-26 07:05 UTC
151.3 km
M 4.4
Dededo Village
Guam · 2026-06-23 04:59 UTC
144.3 km
M 4.1
Dededo Village
Guam · 2026-06-07 19:48 UTC
178.8 km
M 4.2
Dededo Village
Guam · 2026-05-29 12:27 UTC
122.6 km
M 4.5
Dededo Village
Guam · 2026-05-26 11:10 UTC
140.0 km
M 4.6
Dededo Village
Guam · 2026-05-24 15:17 UTC
127.3 km
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