Moderate mag. 5.0 earthquake - Tonga (Samoa) on Friday, 14 October 1983 at 23:03 (GMT)
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Moderate magnitude 5.0 earthquake at 33 km depth
Depth: 33.0 km
Epicenter latitude / longitude: 15.853°S / 173.309°W (Samoa)
Nearest volcano: Tafahi (44 km / 27 mi)
Nearby towns and cities:
53 km (33 mi) ENE of Hihifo (Tonga) (pop: 815) --> See nearby quakes!
257 km (160 mi) SSW of Vailoa (pop: 769) --> See nearby quakes!
263 km (164 mi) SSW of Mulifanua (pop: 4,510) --> See nearby quakes!
269 km (167 mi) SSW of Asau (pop: 6,640) --> See nearby quakes!
271 km (168 mi) SSW of Fasito‘outa (pop: 2,100) --> See nearby quakes!
279 km (173 mi) SW of Apia (pop: 40,400) --> See nearby quakes!
284 km (177 mi) SSW of Safotu (pop: 1,210) --> See nearby quakes!
287 km (178 mi) SW of Lufilufi (pop: 1,070) --> See nearby quakes!
325 km (202 mi) WSW of Tāfuna (Tualauta, American Samoa) (pop: 11,000) --> See nearby quakes!
330 km (205 mi) WSW of Pago Pago (Ma'Oputasi, American Samoa) (pop: 11,500) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 2 x 1012 joules (554 megawatt hours, equivalent to 477 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 5.0||33 km||Tonga (Samoa)||USGS|
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Aftershocks of the 5.0 quake Tonga (Samoa) 14 October 1983 23:03 GMT
More infoRecorded aftershocks, latest first (1 quakes):
- 23 Oct 1983 13:07 UTC| M 3.6 |33 km (20.5 mi) depth|12 km (7 mi) distance| USGS | Details