| Magnitude | 5.0 |
| Alert | Strong |
| Depth | 108.0 km |
| Coordinates | 13.558, -89.954 |
| UTC time | 1977-09-18 05:44:09.300 |
Earthquake details
Sunday, September 18, 1977 Earthquake
The earthquake hit El Salvador on Sunday, September 18, 1977 at 05:44 UTC with a magnitude of 5.0. The closest known location in the current dataset is Sonsonate (El Salvador - SV), about 30.6 km away. The epicenter is located at longitude -89.954 and latitude 13.558.
| Location | Sonsonate |
| Country | El Salvador (SV) |
| Severity | Strong |
Earthquake map 1977-09-18
Closest countries
The 12 closest cities near the epicenter.
| Sonsonate | 30.6 km |
| Ahuachapán | 42.1 km |
| Chalchuapa | 56.1 km |
| Santa Ana | 64.6 km |
| Santa Tecla | 74.1 km |
| Antiguo Cuscatlán | 76.8 km |
| Jutiapa | 81.9 km |
| San Salvador | 84.2 km |
| San Marcos | 84.3 km |
| Mejicanos | 84.9 km |
| Cuscatancingo | 85.6 km |
| Delgado | 86.9 km |
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
M 4.2
Sonsonate
El Salvador · 2026-07-02 10:27 UTC
51.8 km
M 4.4
San Salvador
El Salvador · 2026-06-23 17:31 UTC
33.2 km
M 4.2
Escuintla
Guatemala · 2026-06-22 09:11 UTC
61.3 km
M 4.5
Masagua
Guatemala · 2026-06-21 13:27 UTC
94.9 km
M 4.4
Sonsonate
El Salvador · 2026-06-20 17:51 UTC
68.7 km
M 4.0
Sonsonate
El Salvador · 2026-06-12 10:55 UTC
25.6 km
M 4.4
San Salvador
El Salvador · 2026-06-07 02:28 UTC
92.5 km
M 4.9
San Marcos
El Salvador · 2026-06-05 12:27 UTC
91.5 km
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