Very strong mag. 6.3 earthquake - South Pacific Ocean, 24 km southeast of ‘Ohonua, ʻEua, Tonga, on Wednesday, 12 August 1953 at 16:53 (GMT)
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Very strong magnitude 6.3 earthquake at 25 km depth
Date & time: 12 Aug 1953 16:53:49 UTC
Depth: 25.0 km
Epicenter latitude / longitude: 21.519°S / 174.834°W (South Pacific Ocean, Tonga)
Nearest volcano: Unnamed 21.38°S/175.65°W (86 km / 53 mi)
Nearby towns and cities:
24 km (15 mi) SSE of ‘Ohonua (Ohonua) (pop: 1,240) --> See nearby quakes!
49 km (31 mi) SSE of Kolonga (pop: 1,100) --> See nearby quakes!
57 km (35 mi) SE of Nuku'alofa (pop: 22,400) --> See nearby quakes!
57 km (35 mi) SE of Nuku‘alofa (pop: 22,400) --> See nearby quakes!
196 km (122 mi) SSW of Pangai (pop: 1,740) --> See nearby quakes!
331 km (206 mi) SSW 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||25 km||Tonga||USGS|
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.