| Magnitude | 7.5 |
| Alert | Extreme |
| Depth | 33.0 km |
| Coordinates | -9.965, 160.731 |
| UTC time | 1977-04-21 04:24:09.600 |
Earthquake details
Thursday, April 21, 1977 Earthquake
The earthquake hit Solomon Islands on Thursday, April 21, 1977 at 04:24 UTC with a magnitude of 7.5. The closest known location in the current dataset is Honiara (Solomon Islands - SB), about 104.1 km away. The epicenter is located at longitude 160.731 and latitude -9.965.
| Location | Honiara |
| Country | Solomon Islands (SB) |
| Severity | Extreme |
Earthquake map 1977-04-21
Closest countries
The 12 closest cities near the epicenter.
| Honiara | 104.1 km |
| Arawa | 704.8 km |
| Port Vila | 1191.1 km |
| Port Moresby | 1490.9 km |
| Noumea | 1499.9 km |
| Lae | 1554.9 km |
| Mackay | 1755.9 km |
| Cairns | 1794.6 km |
| Townsville | 1820.8 km |
| Gladstone | 1843.9 km |
| Rockhampton | 1847.1 km |
| Tarawa | 1849.9 km |
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
M 4.6
Honiara
Solomon Islands · 2026-06-06 08:52 UTC
97.2 km
M 4.3
Honiara
Solomon Islands · 2026-05-26 19:39 UTC
48.9 km
M 4.7
Honiara
Solomon Islands · 2026-05-21 06:06 UTC
37.8 km
M 4.9
Honiara
Solomon Islands · 2026-04-01 21:01 UTC
75.5 km
M 4.4
Honiara
Solomon Islands · 2026-03-31 13:41 UTC
59.6 km
M 4.3
Honiara
Solomon Islands · 2026-03-26 01:52 UTC
45.9 km
M 4.2
Honiara
Solomon Islands · 2026-03-22 01:17 UTC
66.9 km
M 4.2
Honiara
Solomon Islands · 2026-03-21 02:15 UTC
28.1 km
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