Major mag. 7.5 earthquake - Tonga on Wednesday, 8 September 1948
Depth: 15.0 km
Epicenter latitude / longitude: 21.246°S / 173.879°W (Tonga)
Nearest volcano: Hunga Tonga-Hunga Ha'apai (173 km / 107 mi)
Nearby towns and cities:
111 km (69 mi) E of ‘Ohonua (pop: 1,200)
138 km (86 mi) E of Nuku‘alofa (pop: 22,400)
167 km (104 mi) SE of Pangai (pop: 1,700)
Primary data source: USGS
Estimated released energy: 1.1 x 1016 joules (3117 gigawatt hours, equivalent to 2.7 x 106 tons of TNT or 167.6 atomic bombs!) [learn more]
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.
|Time||Mag. / Depth||Location||Source|
|Wed, 8 Sep 15:09 UTC||M 7.5 / 15 km||Tonga||USGS|
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Aftershocks of the 7.5 quake: Tonga, 8 Sep 1948 15h09
More infoRecorded aftershocks, latest first (0 quakes):
So far, no aftershocks have been registered.