Mag. 4.7 earthquake - Tonga on Sunday, 24 July 1983 at 17:50 (GMT)
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Light magnitude 4.7 earthquake at 249 km depth
Depth: 249.1 km
Epicenter latitude / longitude: 19.475°S / 175.766°W (Tonga)
Nearest volcano: Tofua (79 km / 49 mi)
Nearby towns and cities:
153 km (95 mi) WNW of Pangai (pop: 1,740) --> See nearby quakes!
194 km (121 mi) NNW of Nuku'alofa (pop: 22,400) --> See nearby quakes!
194 km (121 mi) NNW of Nuku‘alofa (pop: 22,400) --> See nearby quakes!
198 km (123 mi) NNW of Kolonga (pop: 1,100) --> See nearby quakes!
209 km (130 mi) WSW of Neiafu (pop: 4,320) --> See nearby quakes!
224 km (139 mi) NNW of ‘Ohonua (Ohonua) (pop: 1,240) --> See nearby quakes!
444 km (276 mi) SSW of Hihifo (pop: 815) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 7.1 x 1011 joules (197 megawatt hours, equivalent to 169 tons of TNT) 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 4.7||249 km||Tonga||USGS|
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.