Mag. 4.9 earthquake - Tonga on Thursday, 8 March 1990 at 01:06 (GMT)
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Light magnitude 4.9 earthquake at 309 km depth
Depth: 309.4 km
Epicenter latitude / longitude: 15.63°S / 174.914°W (Tonga)
Nearest volcano: Niuafo'ou (77 km / 48 mi)
Nearby towns and cities:
125 km (78 mi) WNW of Hihifo (pop: 815) --> See nearby quakes!
294 km (183 mi) SSE of Mata-Utu (Hahake, Wallis & Futuna) (pop: 1,200) --> See nearby quakes!
339 km (211 mi) SW of Asau (Samoa) (pop: 6,640) --> See nearby quakes!
350 km (218 mi) NNW of Neiafu (pop: 4,320) --> See nearby quakes!
363 km (226 mi) SW of Safotu (Samoa) (pop: 1,210) --> See nearby quakes!
369 km (229 mi) SW of Mulifanua (Samoa) (pop: 4,510) --> See nearby quakes!
378 km (235 mi) WSW of Fasito‘outa (Samoa) (pop: 2,100) --> See nearby quakes!
393 km (244 mi) WSW of Apia (Samoa) (pop: 40,400) --> See nearby quakes!
407 km (253 mi) WSW of Lufilufi (Samoa) (pop: 1,070) --> See nearby quakes!
614 km (381 mi) N of Nuku'alofa (pop: 22,400) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.4 x 1012 joules (392 megawatt hours, equivalent to 338 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 4.9||309 km||Tonga||USGS|
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.