| Magnitude | 5.7 |
| Alert | Strong |
| Depth | 33.0 km |
| Coordinates | -34.419, 55.297 |
| UTC time | 1977-12-22 13:29:49.400 |
Earthquake details
Thursday, December 22, 1977 Earthquake
The earthquake hit Southwest Indian Ridge on Thursday, December 22, 1977 at 13:29 UTC with a magnitude of 5.7. The closest known location in the current dataset is Tôlanaro, about 1317.0 km away. The epicenter is located at longitude 55.297 and latitude -34.419.
| Location | Southwest Indian Ridge |
| Country | Southwest Indian Ridge |
| Severity | Strong |
Earthquake map 1977-12-22
Closest countries
The 12 closest cities near the epicenter.
| Tôlanaro | 1317.0 km |
| Amboasary | 1352.9 km |
| Ambovombe | 1358.6 km |
| Tsiombe | 1387.0 km |
| Vangaindrano | 1441.4 km |
| Saint-Joseph | 1452.1 km |
| Saint-Pierre | 1456.1 km |
| Saint-Louis | 1462.0 km |
| Le Tampon | 1463.2 km |
| Saint-Leu | 1474.8 km |
| Farafangana | 1481.8 km |
| Ampanihy | 1486.7 km |
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
M 4.5
Southwest Indian Ridge
Unknown · 2026-02-10 15:28 UTC
83.0 km
M 4.6
Southwest Indian Ridge
Unknown · 2026-01-17 02:17 UTC
19.5 km
M 4.9
Southwest Indian Ridge
Unknown · 2024-11-18 04:57 UTC
14.2 km
M 4.4
Southwest Indian Ridge
Unknown · 2023-12-12 09:45 UTC
60.6 km
M 4.5
Southwest Indian Ridge
Unknown · 2023-11-25 19:44 UTC
78.3 km
M 4.6
Southwest Indian Ridge
Unknown · 2023-11-02 10:02 UTC
92.5 km
M 4.8
Southwest Indian Ridge
Unknown · 2023-05-20 15:35 UTC
92.0 km
M 4.9
Southwest Indian Ridge
Unknown · 2023-05-19 18:06 UTC
97.0 km
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