Mag. 4.9 earthquake - South Pacific Ocean, 48 km southeast of Hihifo, Niuas, Tonga, on Sunday, 18 October 2015 at 18:17 (GMT)

This quake was likely an aftershock of the 6.0 quake South Pacific Ocean, 45 km southeast of Hihifo, Niuas, Tonga, 18 October 2015 16:18 GMT, which had occurred 1 hour and 59 minutes earlier.
Mag. 4.9 earthquake - South Pacific Ocean, 48 km southeast of Hihifo, Niuas, Tonga, on Sunday, 18 October 2015 at 18:17 (GMT)

Light magnitude 4.9 earthquake at 10 km depth

18 Oct 18:33 UTC: First to report: GFZ after 16 minutes.
Date & time: 18 Oct 2015 18:17:25 UTC
Magnitude: 4.9
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
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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 kmTonga IslandsGFZ
M 5.010 km TONGAEMSC
M 5.110 km- 38km ESE 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

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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