Mag. 4.9 earthquake - South Pacific Ocean, 48 km southeast of Hihifo, Niuas, Tonga, on Sunday, 18 October 2015 at 18:17 (GMT)
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Light magnitude 4.9 earthquake at 10 km depth
18 Oct 18:33 UTC: First to report: GFZ after 16 minutes.
Depth: 10.0 km
Epicenter latitude / longitude: 16.18°S / 173.41°W (South Pacific Ocean, Tonga)
Nearest volcano: Tafahi (49 km / 30 mi)
Nearby towns and cities:
48 km (30 mi) ESE of Hihifo (pop: 815) --> See nearby quakes!
281 km (175 mi) NNE of Neiafu (pop: 4,320) --> See nearby quakes!
300 km (186 mi) SSW of Mulifanua (Samoa) (pop: 4,510) --> See nearby quakes!
307 km (191 mi) SSW of Fasito‘outa (Samoa) (pop: 2,100) --> See nearby quakes!
307 km (191 mi) SSW of Asau (Samoa) (pop: 6,640) --> See nearby quakes!
315 km (196 mi) SSW of Apia (Samoa) (pop: 40,400) --> See nearby quakes!
322 km (200 mi) SSW of Safotu (Samoa) (pop: 1,210) --> See nearby quakes!
354 km (220 mi) SW of Tāfuna (Tualauta, American Samoa) (pop: 11,000) --> See nearby quakes!
359 km (223 mi) SW of Pago Pago (Ma'Oputasi, American Samoa) (pop: 11,500) --> See nearby quakes!
583 km (362 mi) NNE of Nuku'alofa (pop: 22,400) --> See nearby quakes!
247 km (153 mi) ESE of Niuafo‘ou Island --> See nearby quakes!
Primary data source: GFZ (German Research Centre for Geosciences)
Estimated released energy: 1.4 x 1012 joules (392 megawatt hours, equivalent to 338 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 4.9||10 km||Tonga Islands||GFZ|
|M 5.0||10 km||TONGA||EMSC|
|M 5.1||10 km||- 38km ESE of Hihifo, Tonga||USGS|
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.