Mag. 3.6 earthquake - Tonga (Samoa) on Sunday, 23 October 1983 at 13:07 (GMT)

Mag. 3.6 earthquake - Tonga (Samoa) on Sunday, 23 October 1983 at 13:07 (GMT)

Minor magnitude 3.6 earthquake at 33 km depth

Date & time: 23 Oct 1983 13:07:43 UTC
Magnitude: 3.6
Depth: 33.0 km
Epicenter latitude / longitude: 15.952°S / 173.269°W (Samoa)
Nearest volcano: Tafahi (50 km / 31 mi)
Nearby towns and cities:
56 km (35 mi) E of Hihifo (Tonga) (pop: 815) --> See nearby quakes!
265 km (165 mi) SSW of Vailoa (pop: 769) --> See nearby quakes!
271 km (168 mi) SSW of Mulifanua (pop: 4,510) --> See nearby quakes!
278 km (172 mi) SSW of Fasito‘outa (pop: 2,100) --> See nearby quakes!
279 km (173 mi) SSW of Asau (pop: 6,640) --> See nearby quakes!
286 km (178 mi) SW of Apia (pop: 40,400) --> See nearby quakes!
293 km (182 mi) SW of Lufilufi (pop: 1,070) --> See nearby quakes!
293 km (182 mi) SSW of Safotu (pop: 1,210) --> See nearby quakes!
327 km (203 mi) SW of Tāfuna (Tualauta, American Samoa) (pop: 11,000) --> See nearby quakes!
333 km (207 mi) SW of Pago Pago (Ma'Oputasi, American Samoa) (pop: 11,500) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.6 x 1010 joules (4.4 megawatt hours, equivalent to 3.79 tons of TNT) More info
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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.
MagnitudeDepthLocationSource
M 3.633 kmTonga (Samoa)USGS
Note: for quakes of 2012 and earlier, our database often contains only records from USGS.

User reports for this quake

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
There are no user reports for this quake yet. If you felt it be the first to report it!
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Earlier earthquakes in the same area

Mag. 3.6 earthquake - Tonga (Samoa) on Sunday, 23 October 1983 at 13:07 (GMT)
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