| Magnitude | 5.5 |
| Alert | Strong |
| Depth | 33.0 km |
| Coordinates | -20.747, -173.957 |
| UTC time | 1977-10-19 02:21:40.400 |
Earthquake details
Wednesday, October 19, 1977 Earthquake
The earthquake hit Tonga on Wednesday, October 19, 1977 at 02:21 UTC with a magnitude of 5.5. The closest known location in the current dataset is Apia (Tonga - TO), about 804.0 km away. The epicenter is located at longitude -173.957 and latitude -20.747.
| Location | 111 km SSE of Pangai |
| Country | Tonga (TO) |
| Severity | Strong |
Earthquake map 1977-10-19
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
|
M 4.5
75 km SE of Pangai
Tonga · 2026-03-18 13:17 UTC
|
40.6 km |
|
M 4.4
93 km ESE of Fangale’ounga
Tonga · 2026-03-07 10:53 UTC
|
89.0 km |
|
M 4.8
155 km ESE of Pangai
Tonga · 2026-02-24 07:03 UTC
|
91.3 km |
|
M 4.4
77 km E of ‘Ohonua
Tonga · 2026-02-08 02:06 UTC
|
71.3 km |
|
M 4.3
104 km ENE of ‘Ohonua
Tonga · 2026-02-06 04:16 UTC
|
29.6 km |
|
M 4.6
94 km ENE of ‘Ohonua
Tonga · 2026-02-01 10:49 UTC
|
45.9 km |
|
M 5.8
99 km ENE of ‘Ohonua
Tonga · 2026-01-31 20:59 UTC
|
28.1 km |
|
M 4.9
93 km ENE of ‘Ohonua
Tonga · 2026-01-16 20:46 UTC
|
41.9 km |
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