Strong mag. 5.8 earthquake - South Pacific Ocean, 129 km south of Nuku'alofa, Tongatapu, on Wednesday, 20 November 1963 at 11:59 (GMT)
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Strong magnitude 5.8 earthquake at 30 km depth
Date & time: 20 Nov 1963 11:59:59 UTC
Depth: 30.0 km
Epicenter latitude / longitude: 22.301°S / 175.233°W (South Pacific Ocean, Tonga)
Nearest volcano: Ata Volcanic Complex (101 km / 63 mi)
Nearby towns and cities:
112 km (69 mi) SSW of ‘Ohonua (Ohonua) (pop: 1,240) --> See nearby quakes!
129 km (80 mi) S of Nuku'alofa (pop: 22,400) --> See nearby quakes!
129 km (80 mi) S of Nuku‘alofa (pop: 22,400) --> See nearby quakes!
131 km (81 mi) S of Kolonga (pop: 1,100) --> See nearby quakes!
291 km (181 mi) SSW of Pangai (pop: 1,740) --> See nearby quakes!
426 km (265 mi) SSW of Neiafu (pop: 4,320) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated 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.
|5.8||30 km||Tonga region||USGS|
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.