| Magnitude | 5.4 |
| Alert | Strong |
| Depth | 33.0 km |
| Coordinates | -33.248, -178.750 |
| UTC time | 1975-10-21 08:36:28.900 |
Earthquake details
Tuesday, October 21, 1975 Earthquake
The earthquake hit south of the Kermadec Islands on Tuesday, October 21, 1975 at 08:36 UTC with a magnitude of 5.4. The closest known location in the current dataset is Gisborne, about 668.9 km away. The epicenter is located at longitude -178.750 and latitude -33.248.
| Location | south of the Kermadec Islands |
| Country | south of the Kermadec Islands |
| Severity | Strong |
Earthquake map 1975-10-21
Closest countries
The 12 closest cities near the epicenter.
| Gisborne | 668.9 km |
| Tauranga | 675.4 km |
| Whangarei | 692.8 km |
| Rotorua | 707.7 km |
| Auckland | 713.9 km |
| Manukau | 714.0 km |
| Papatoetoe | 715.4 km |
| Hamilton | 739.4 km |
| Napier City | 796.2 km |
| Hastings | 812.9 km |
| New Plymouth | 912.9 km |
| Whanganui | 927.3 km |
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
M 5.0
south of the Kermadec Islands
Unknown · 2026-07-20 20:44 UTC
82.3 km
M 4.5
south of the Kermadec Islands
Unknown · 2026-07-19 20:23 UTC
41.8 km
M 5.2
south of the Kermadec Islands
Unknown · 2026-07-18 05:46 UTC
76.0 km
M 5.0
south of the Kermadec Islands
Unknown · 2026-07-17 13:17 UTC
66.9 km
M 4.4
south of the Kermadec Islands
Unknown · 2026-07-09 19:17 UTC
16.2 km
M 4.7
south of the Kermadec Islands
Unknown · 2026-07-06 22:14 UTC
30.2 km
M 4.6
south of the Kermadec Islands
Unknown · 2026-07-06 19:10 UTC
40.6 km
M 4.6
south of the Kermadec Islands
Unknown · 2026-06-12 10:31 UTC
98.6 km
Stay informed
Earthquake alerts
Create targeted notifications for important seismic activity near the places you follow.