Strong magnitude 5.6 earthquake at 10 km depth
27 Jul 09:48 UTC: First to report: GFZ after 12 minutes.
27 Jul 09:58: Now using data updates from USGS
27 Jul 14:16: Magnitude recalculated from 5.5 to 5.6. Epicenter location corrected by 17 km (10.9 mi) towards W.
Update Wed, 27 Jul 2022, 09:54
Significant magnitude 5.6 quake hits 39 km southeast of Neiafu, Tonga late at night
5.6 quake 27 Jul 10:36 pm (GMT +13)
Tonga was shaken near Neiafu, Vava'u, by an earthquake of magnitude 5.6 only 17 minutes ago, the German Research Centre for Geosciences (GFZ) reported.
The quake hit at a shallow depth of 10 km beneath the epicenter near Neiafu, Vava'u, Tonga, late at night on Wednesday, July 27th, 2022, at 10:36 pm local time. Shallow earthquakes are felt more strongly than deeper ones as they are closer to the surface. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
Our monitoring service identified a second report from the citizen-seismograph network of RaspberryShake which listed the quake at magnitude 5.6 as well. Other agencies reporting the same quake include France's Réseau National de Surveillance Sismique (RéNaSS) at magnitude 5.4, and the European-Mediterranean Seismological Centre (EMSC) at magnitude 5.7.
Generally quakes of this magnitude are recorded by more than one agency and the results can vary, with subsequent reports that come in after the first one often showing more accuracy.
Based on the preliminary seismic data, the quake was probably felt by many people in the area of the epicenter. It should not have caused significant damage, other than objects falling from shelves, broken windows, etc.
In Neiafu (pop. 4,300) located 39 km from the epicenter, the quake should have been felt as light shaking.
Weak shaking might have been felt in Bangai (pop. 1,700) located 119 km from the epicenter.
VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you're in the area, please send us your experience through our reporting mechanism, either online
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