Moderate mag. 5.5 earthquake - Tonga (Samoa) on Wednesday, 15 June 1983 at 06:07 (GMT)
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Moderate magnitude 5.5 earthquake at 33 km depth
Depth: 33.0 km
Epicenter latitude / longitude: 15.232°S / 173.631°W (Samoa)
Nearest volcano: West Mata (19 km / 12 mi)
Nearby towns and cities:
217 km (135 mi) SW of Vailoa (pop: 769) --> See nearby quakes!
218 km (136 mi) SSW of Asau (pop: 6,640) --> See nearby quakes!
232 km (144 mi) SW of Mulifanua (pop: 4,510) --> See nearby quakes!
238 km (148 mi) SSW of Safotu (pop: 1,210) --> See nearby quakes!
241 km (150 mi) SW of Fasito‘outa (pop: 2,100) --> See nearby quakes!
254 km (158 mi) SW of Apia (pop: 40,400) --> See nearby quakes!
266 km (165 mi) SW of Lufilufi (pop: 1,070) --> See nearby quakes!
332 km (207 mi) WSW of Pago Pago (Ma'Oputasi, American Samoa) (pop: 11,500) --> See nearby quakes!
350 km (217 mi) SE of Mata-Utu (Hahake, Wallis & Futuna) (pop: 1,200) --> See nearby quakes!
580 km (360 mi) NW of Alofi (Niue) (pop: 624) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.1 x 1013 joules (3.12 gigawatt hours, equivalent to 2682 tons of TNT or 0.2 atomic bombs!) 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 5.5||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 5.5 quake Tonga (Samoa) 15 June 1983 06:07 GMT
More infoRecorded aftershocks, latest first (1 quakes):
- 21 Jun 1983 11:36 UTC| M 5.1 |33 km (20.5 mi) depth|32 km (20 mi) distance| USGS | Details