Strong mag. 6.1 earthquake - Tonga Islands on Thursday, 4 September 2014

Very strong mag. 6.1 earthquake - South Pacific Ocean, 201 km east of Nuku'alofa, Tongatapu, on Thursday, 4 September 2014 at 05:33 (GMT)

Very strong mag. 6.1 earthquake - South Pacific Ocean, 201 km east of Nuku\'alofa, Tongatapu, on Thursday, 4 September 2014 at 05:33 (GMT)

Very strong magnitude 6.1 earthquake at 0 km depth

4 Sep 07:17 UTC: First to report: GeoAu after 1 hour and 43 minutes.
Hypocenter depth recalculated from 9.0 to 0.0 km.
Date & time: 4 Sep 2014 05:33:45 UTC
Magnitude: 6.1
Depth: 0.0 km
Epicenter latitude / longitude: 21.234°S / 173.267°W (South Pacific Ocean, Tonga)
Nearest volcano: Hunga Tonga-Hunga Ha'apai (234 km / 145 mi)
Nearby towns and cities:
175 km (109 mi) E of ‘Ohonua (Ohonua) (pop: 1,240) --> See nearby quakes!
187 km (116 mi) E of Kolonga (pop: 1,100) --> See nearby quakes!
194 km (121 mi) SE of Pangai (pop: 1,740) --> See nearby quakes!
201 km (125 mi) E of Nuku'alofa (pop: 22,400) --> See nearby quakes!
201 km (125 mi) E of Nuku‘alofa (pop: 22,400) --> See nearby quakes!
297 km (185 mi) SSE of Neiafu (pop: 4,320) --> See nearby quakes!
426 km (264 mi) SW of Alofi (Niue) (pop: 624) --> See nearby quakes!
427 km (265 mi) SW of Hakupu (Niue) (pop: 221) --> See nearby quakes!
439 km (273 mi) SW of Mutalau (Niue) (pop: 133) --> See nearby quakes!
197 km (122 mi) E of Amsterdam Island (pop: 75,000) --> See nearby quakes!
Primary data source: GeoAu (Geoscience Australia )
Estimated released energy: 8.9 x 1013 joules (24.8 gigawatt hours, equivalent to 21301 tons of TNT or 1.3 atomic bombs!) 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.
6.1kmTonga IslandsGeoAu
6.010 kmTonga IslandsGFZ
6.012 km175km E of `Ohonua, TongaUSGS

User reports for this quake (2)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Nailsea / Violent shaking (MMI IX) : everything was destroyed and there were some injuries  
Chicago Illinois / Very weak shaking (MMI II) : Lasted for about a minute. Shaking was weak, but noticeable since earthquakes don't occur very often in this part of the world. Many people who were sleeping didn't feel the earthquake, but others who were awake happened sometime between 12:35-12:38AM local time.  
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Recorded aftershocks, latest first (0 quakes):
So far, no aftershocks have been registered.

Earlier earthquakes in the same area

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