Strong mag. 6.3 earthquake - South Pacific Ocean, 159 km south of Nuku\'alofa, Tongatapu, on Monday, 29 July 1968 at 11:12 (GMT)
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Strong magnitude 6.3 earthquake at 45 km depth
Date & time: 29 Jul 1968 11:12:02 UTC
Depth: 45.0 km
Epicenter latitude / longitude: 22.531°S / 174.86°W (South Pacific Ocean, Tonga)
Nearest volcano: Ata Volcanic Complex (140 km / 87 mi)
Nearby towns and cities:
134 km (83 mi) S of ‘Ohonua (Ohonua) (pop: 1,240) --> See nearby quakes!
157 km (98 mi) S of Kolonga (pop: 1,100) --> See nearby quakes!
159 km (99 mi) SSE of Nuku'alofa (pop: 22,400) --> See nearby quakes!
159 km (99 mi) SSE of Nuku‘alofa (pop: 22,400) --> See nearby quakes!
307 km (191 mi) S of Pangai (pop: 1,740) --> See nearby quakes!
441 km (274 mi) S of Neiafu (pop: 4,320) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.8 x 1014 joules (49.4 gigawatt hours, equivalent to 42502 tons of TNT or 2.7 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 6.3||45 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.