- South Pacific Ocean, 154 km southwest of Nuku\'alofa, Tongatapu, on Thursday, 14 August 2003 at 08:41 (GMT)
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Moderate magnitude 4.8 earthquake at 33 km depth
Depth: 33.0 km
Epicenter latitude / longitude: 21.974°S / 176.389°W (South Pacific Ocean, Tonga)
Nearest volcano: Ata Volcanic Complex (44 km / 27 mi)
Nearby towns and cities:
152 km (95 mi) SW of Haveluloto (pop: 3,420) --> See nearby quakes!
154 km (96 mi) SW of Nuku'alofa (pop: 22,400) --> See nearby quakes!
154 km (96 mi) SW of Nuku‘alofa (pop: 22,400) --> See nearby quakes!
165 km (102 mi) WSW of ‘Ohonua (Ohonua) (pop: 1,240) --> See nearby quakes!
166 km (103 mi) SW of Kolonga (pop: 1,100) --> See nearby quakes!
320 km (199 mi) SW of Pangai (pop: 1,740) --> See nearby quakes!
447 km (278 mi) SSW of Neiafu (pop: 4,320) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1 x 1012 joules (278 megawatt hours, equivalent to 239 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 4.8||33 km||Fiji region (Tonga)||USGS|
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.