- South Pacific Ocean, 242 km southwest of Apia, Tuamasaga, Samoa, on Sunday, 4 October 2015 at 14:57 (GMT)

- South Pacific Ocean, 242 km southwest of Apia, Tuamasaga, Samoa, on Sunday, 4 October 2015 at 14:57 (GMT)

Strong magnitude 4.9 earthquake at 10 km depth

4 Oct 16:10 UTC: First to report: EMSC after 1 hour and 12 minutes.
Hypocenter depth recalculated from 8.0 to 10.0 km.
Date & time: 4 Oct 2015 14:57:41 UTC
Magnitude: 4.9
Depth: 10.0 km
Epicenter latitude / longitude: 15.64°S / 173.02°W (South Pacific Ocean, Samoa)
Nearest volcano: Curacoa (79 km / 49 mi)
Nearby towns and cities:
223 km (139 mi) SSW of Vailoa (pop: 769) --> See nearby quakes!
227 km (141 mi) SSW of Mulifanua (pop: 4,510) --> See nearby quakes!
234 km (146 mi) SSW of Fasito‘outa (pop: 2,100) --> See nearby quakes!
239 km (149 mi) S of Asau (pop: 6,640) --> See nearby quakes!
242 km (150 mi) SSW of Apia (pop: 40,400) --> See nearby quakes!
249 km (155 mi) SW of Lufilufi (pop: 1,070) --> See nearby quakes!
252 km (157 mi) SSW of Safotu (pop: 1,210) --> See nearby quakes!
291 km (181 mi) WSW of Pago Pago (Ma'Oputasi, American Samoa) (pop: 11,500) --> See nearby quakes!
429 km (267 mi) SE of Mata-Utu (Hahake, Wallis & Futuna) (pop: 1,200) --> See nearby quakes!
503 km (312 mi) NW of Alofi (Niue) (pop: 624) --> See nearby quakes!
235 km (146 mi) SW of Upolu Island --> See nearby quakes!
284 km (176 mi) SW of Samoa s Island --> See nearby quakes!
Primary data source: EMSC (European-Mediterranean Seismological Centre)
Estimated released energy: 1.4 x 1012 joules (392 megawatt hours, equivalent to 338 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 4.910 km TONGAEMSC
M 4.88.5 km- 91km ENE of Hihifo, TongaUSGS

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

- South Pacific Ocean, 242 km southwest of Apia, Tuamasaga, Samoa, on Sunday, 4 October 2015 at 14:57 (GMT)
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