Strong mag. 5.8 earthquake - South Pacific Ocean, New Caledonia, on Monday, 1 Mar 2021 7:37 am (GMT +11) -
This quake was likely an aftershock of the 7.7 quake South Pacific Ocean, New Caledonia, 11 Feb 2021 12:20 am (GMT +11), which had occurred 3 weeks earlier.
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Strong magnitude 5.8 earthquake at 30 km depth
28 Feb 20:46 UTC: First to report: EMSC after 8 minutes.
28 Feb 20:48: Hypocenter depth recalculated from 5.0 to 80.0 km (from 3.1 to 50 mi). Epicenter location corrected by 21 km (13 mi) towards ENE.
28 Feb 22:28: Hypocenter depth recalculated from 40.0 to 30.0 km (from 25 to 18.6 mi). Epicenter location corrected by 10.8 km (6.7 mi) towards NNE.
28 Feb 20:48: Hypocenter depth recalculated from 5.0 to 80.0 km (from 3.1 to 50 mi). Epicenter location corrected by 21 km (13 mi) towards ENE.
28 Feb 22:28: Hypocenter depth recalculated from 40.0 to 30.0 km (from 25 to 18.6 mi). Epicenter location corrected by 10.8 km (6.7 mi) towards NNE.
Date & time: 28 Feb 2021 20:37:40 UTC -
Local time at epicenter: Monday, 1 Mar 2021 7:37 am (GMT +11)
Magnitude: 5.8
Depth: 30.0 km
Epicenter latitude / longitude: 22.72°S / 172.4°E
(South Pacific Ocean, New Caledonia)Nearest volcano: Hunter Island (58 km / 36 mi)
Nearby towns and cities:
479 km (298 mi) SE of Isangel (Vanuatu) (pop: 1,440) --> See nearby quakes!
614 km (381 mi) E of Noumea (pop: 93,100) --> See nearby quakes!
479 km (298 mi) SE of Tanna Island (pop: 28,800) --> See nearby quakes!
387 km (241 mi) SE of Aneityum Island (pop: 915) --> See nearby quakes!
Weather at epicenter at time of quake:
Clear Sky
25.3°C (78 F), humidity: 77%, wind: 8 m/s (16 kts) from ESE
Primary data source: EMSC (European-Mediterranean Seismological Centre)Clear Sky
25.3°C (78 F), humidity: 77%, wind: 8 m/s (16 kts) from ESEEstimated released energy: 3.2 x 1013 joules (8.78 gigawatt hours, equivalent to 7558 tons of TNT or 0.5 atomic bombs!) More info
Data for the same earthquake reported by different agencies
Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
| Magnitude | Depth | Location | Source |
| 5.8 | 30 km | SOUTHEAST OF LOYALTY ISLANDS, New Caledonia | EMSC |
| 5.8 | 31 km | Southeast of Loyalty Islands, New Caledonia | GFZ |
| 5.7 | 10 km | Southeast of the Loyalty Islands, New Caledonia | USGS |
| 5.8 | 10 km | Southeast of Loyalty Islands, New Caledonia | GeoAu |
| 6.0 | 20 km | New Caledonia [Sea] | INGV |
User reports for this quake
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