| Magnitude | 5.0 |
| Alert | Strong |
| Depth | 68.0 km |
| Coordinates | 18.726, -62.905 |
| UTC time | 1977-05-09 02:24:59.000 |
Earthquake details
Monday, May 9, 1977 Earthquake
The earthquake hit Puerto Rico on Monday, May 9, 1977 at 02:24 UTC with a magnitude of 5.0. The closest known location in the current dataset is St Croix (Puerto Rico - PR), about 224.2 km away. The epicenter is located at longitude -62.905 and latitude 18.726.
| Location | San Juan |
| Country | Puerto Rico (PR) |
| Severity | Strong |
Earthquake map 1977-05-09
Closest countries
The 12 closest cities near the epicenter.
| St Croix | 224.2 km |
| Fajardo | 293.4 km |
| Baie-Mahault | 307.5 km |
| Les Abymes | 310.9 km |
| Carolina | 324.4 km |
| Trujillo Alto | 330.0 km |
| Caguas | 336.4 km |
| San Juan | 338.9 km |
| Guaynabo | 340.8 km |
| Bayamón | 345.0 km |
| Levittown | 347.1 km |
| Vega Baja | 368.8 km |
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
|
M 4.2
San Juan
Puerto Rico · 2026-04-13 02:06 UTC
|
358.6 km |
Stay informed
Earthquake alerts
Create targeted notifications for important seismic activity near the places you follow.