Strong mag. 6.0 earthquake - South Pacific Ocean, 69 km south of Pangai, Ha‘apai, Tonga, on Tuesday, 29 September 1964 at 14:00 (GMT)
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Strong magnitude 6.0 earthquake at 20 km depth
Depth: 20.0 km
Epicenter latitude / longitude: 20.434°S / 174.312°W (South Pacific Ocean, Tonga)
Nearest volcano: Feinga Seamount (94 km / 58 mi)
Nearby towns and cities:
69 km (43 mi) S of Pangai (pop: 1,740) --> See nearby quakes!
121 km (75 mi) NE of Nuku'alofa (pop: 22,400) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 6.3 x 1013 joules (17.5 gigawatt hours, equivalent to 15080 tons of TNT or 0.9 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 6.0||20 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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Aftershocks of the 6.0 quake South Pacific Ocean, 69 km south of Pangai, Ha‘apai, Tonga, 29 September 1964 14:00 GMT
More infoRecorded aftershocks, latest first (2 quakes):
- 05 Jan 1965 18:05 UTC| M 6.2 |20 km (12.4 mi) depth|39 km (24 mi) distance| USGS | Strong mag. 6.2 earthquake - South Pacific Ocean, 142 km northeast of Nuku'alofa, Tongatapu, on Tuesday, 5 January 1965 at 18:05 (GMT)
- 18 Nov 1964 22:21 UTC| M 6.0 |10 km (6.2 mi) depth|45 km (28 mi) distance| USGS | Strong mag. 6.0 earthquake - South Pacific Ocean, 157 km northeast of Nuku'alofa, Tongatapu, on Wednesday, 18 November 1964 at 22:21 (GMT)