| Magnitude | 5.1 |
| Alert | Strong |
| Depth | 45.0 km |
| Coordinates | 12.742, 145.019 |
| UTC time | 1977-04-28 04:03:12.900 |
Earthquake details
Thursday, April 28, 1977 Earthquake
The earthquake hit Guam on Thursday, April 28, 1977 at 04:03 UTC with a magnitude of 5.1. The closest known location in the current dataset is Dededo Village (Guam - GU), about 88.5 km away. The epicenter is located at longitude 145.019 and latitude 12.742.
| Location | Dededo Village |
| Country | Guam (GU) |
| Severity | Strong |
Earthquake map 1977-04-28
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
M 5.0
Dededo Village
Guam · 2026-07-21 11:09 UTC
69.7 km
M 4.4
Dededo Village
Guam · 2026-07-02 23:21 UTC
45.8 km
M 4.0
Dededo Village
Guam · 2026-06-26 07:05 UTC
144.8 km
M 4.4
Dededo Village
Guam · 2026-06-23 04:59 UTC
27.8 km
M 4.1
Dededo Village
Guam · 2026-06-07 19:48 UTC
112.0 km
M 4.2
Dededo Village
Guam · 2026-05-29 12:27 UTC
78.7 km
M 4.5
Dededo Village
Guam · 2026-05-26 11:10 UTC
109.5 km
M 4.6
Dededo Village
Guam · 2026-05-24 15:17 UTC
39.5 km
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