Moderate mag. 5.4 earthquake - Tonga (Samoa) on Saturday, 13 May 1978 at 16:41 (GMT)
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Moderate magnitude 5.4 earthquake at 33 km depth
Depth: 33.0 km
Epicenter latitude / longitude: 15.244°S / 173.387°W (Samoa)
Nearest volcano: West Mata (42 km / 26 mi)
Nearby towns and cities:
90 km (56 mi) NNE of Hihifo (Tonga) (pop: 815) --> See nearby quakes!
202 km (126 mi) SW of Vailoa (pop: 769) --> See nearby quakes!
208 km (129 mi) SSW of Asau (pop: 6,640) --> See nearby quakes!
214 km (133 mi) SW of Mulifanua (pop: 4,510) --> See nearby quakes!
223 km (138 mi) SW of Fasito‘outa (pop: 2,100) --> See nearby quakes!
226 km (140 mi) SSW of Safotu (pop: 1,210) --> See nearby quakes!
235 km (146 mi) SW of Apia (pop: 40,400) --> See nearby quakes!
245 km (153 mi) SW of Lufilufi (pop: 1,070) --> See nearby quakes!
304 km (189 mi) WSW of Tāfuna (Tualauta, American Samoa) (pop: 11,000) --> See nearby quakes!
308 km (191 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: 7.9 x 1012 joules (2.21 gigawatt hours, equivalent to 1898 tons of TNT or 0.1 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 5.4||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 5.4 quake Tonga (Samoa) 13 May 1978 16:41 GMT
More infoRecorded aftershocks, latest first (1 quakes):
- 11 Jun 1978 14:27 UTC| M 6.2 |33 km (20.5 mi) depth|19 km (12 mi) distance| USGS | Strong mag. 6.2 earthquake - Tonga (Samoa) on Sunday, 11 June 1978 at 14:27 (GMT)