Mag. 4.4 earthquake - Tonga (Samoa) on Tuesday, 25 April 1978 at 17:01 (GMT)
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Light magnitude 4.4 earthquake at 166 km depth
Depth: 166.0 km
Epicenter latitude / longitude: 15.429°S / 173.155°W (Samoa)
Nearest volcano: Curacoa (59 km / 37 mi)
Nearby towns and cities:
90 km (56 mi) NE of Hihifo (Tonga) (pop: 815) --> See nearby quakes!
207 km (129 mi) SSW of Vailoa (pop: 769) --> See nearby quakes!
215 km (133 mi) SSW of Mulifanua (pop: 4,510) --> See nearby quakes!
220 km (136 mi) SSW of Asau (pop: 6,640) --> See nearby quakes!
222 km (138 mi) SW of Fasito‘outa (pop: 2,100) --> See nearby quakes!
232 km (144 mi) SW of Apia (pop: 40,400) --> See nearby quakes!
234 km (146 mi) SSW of Safotu (pop: 1,210) --> See nearby quakes!
241 km (150 mi) SW of Lufilufi (pop: 1,070) --> See nearby quakes!
289 km (179 mi) WSW of Tāfuna (Tualauta, American Samoa) (pop: 11,000) --> See nearby quakes!
293 km (182 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: 2.5 x 1011 joules (69.8 megawatt hours, equivalent to 60 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 4.4||166 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.