| Magnitude | 5.2 |
| Alert | Strong |
| Depth | 54.0 km |
| Coordinates | 13.061, 145.327 |
| UTC time | 1977-03-21 07:51:35.900 |
Earthquake details
Monday, March 21, 1977 Earthquake
The earthquake hit Guam on Monday, March 21, 1977 at 07:51 UTC with a magnitude of 5.2. The closest known location in the current dataset is Dededo Village (Guam - GU), about 73.3 km away. The epicenter is located at longitude 145.327 and latitude 13.061.
| Location | Dededo Village |
| Country | Guam (GU) |
| Severity | Strong |
Earthquake map 1977-03-21
Closest countries
The 12 closest cities near the epicenter.
| Dededo Village | 73.3 km |
| Saipan | 243.9 km |
| Jayapura | 1809.1 km |
| Abepura | 1818.5 km |
| Manokwari | 1987.1 km |
| Wamena | 2035.9 km |
| Mount Hagen | 2109.5 km |
| Nabire | 2126.3 km |
| Tandag | 2135.4 km |
| Bislig | 2147.7 km |
| Monkayo | 2188.1 km |
| Compostela | 2189.2 km |
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
M 5.0
Dededo Village
Guam · 2026-07-21 11:09 UTC
105.9 km
M 4.4
Dededo Village
Guam · 2026-07-02 23:21 UTC
87.8 km
M 4.0
Dededo Village
Guam · 2026-06-26 07:05 UTC
134.0 km
M 4.4
Dededo Village
Guam · 2026-06-23 04:59 UTC
21.2 km
M 4.1
Dededo Village
Guam · 2026-06-07 19:48 UTC
78.3 km
M 4.2
Dededo Village
Guam · 2026-05-29 12:27 UTC
72.4 km
M 4.5
Dededo Village
Guam · 2026-05-26 11:10 UTC
96.5 km
M 4.6
Dededo Village
Guam · 2026-05-24 15:17 UTC
36.2 km
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