Very strong mag. 6.2 earthquake - South Pacific Ocean, 82 km south of Nuku\'alofa, Tongatapu, on Sunday, 3 March 1991 at 15:20 (GMT)
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Very strong magnitude 6.2 earthquake at 16 km depth
Date & time: 3 Mar 1991 15:20:24 UTC
Depth: 16.1 km
Epicenter latitude / longitude: 21.867°S / 175.057°W (South Pacific Ocean, Tonga)
Nearest volcano: Unnamed 21.38°S/175.65°W (82 km / 51 mi)
Nearby towns and cities:
60 km (38 mi) S of ‘Ohonua (Ohonua) (pop: 1,240) --> See nearby quakes!
82 km (51 mi) S of Kolonga (pop: 1,100) --> See nearby quakes!
82 km (51 mi) S of Nuku'alofa (pop: 22,400) --> See nearby quakes!
82 km (51 mi) S of Nuku‘alofa (pop: 22,400) --> See nearby quakes!
240 km (149 mi) SSW of Pangai (pop: 1,740) --> See nearby quakes!
375 km (233 mi) SSW of Neiafu (pop: 4,320) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.3 x 1014 joules (35 gigawatt hours, equivalent to 30089 tons of TNT or 1.9 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.
|M 6.2||16 km||Tonga||USGS|
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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More infoRecorded aftershocks, latest first (1 quakes):
- 02 Aug 1991 23:39 UTC| M 4.9 |33 km (20.5 mi) depth|27 km (17 mi) distance| USGS | Details