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Light mag. 4.9 earthquake - South Pacific Ocean, Tonga, on Saturday, Oct 23, 2021 at 11:00 am (GMT +13) -

Light mag. 4.9 earthquake - South Pacific Ocean, Tonga, on Saturday, Oct 23, 2021 at 11:00 am (GMT +13) Light mag. 4.9 earthquake - South Pacific Ocean, Tonga, on Saturday, Oct 23, 2021 at 11:00 am (GMT +13)

Light magnitude 4.9 earthquake at 230 km depth

22 Oct 22:15 UTC: First to report: BMKG after 15 minutes.
Date & time: Oct 22, 2021 22:00:12 UTC -
Local time at epicenter: Saturday, Oct 23, 2021 at 11:00 am (GMT +13)
Magnitude: 4.9
Depth: 230.0 km
Epicenter latitude / longitude: 17.91°S / 175.18°W (South Pacific Ocean, Tonga)
Antipode: 17.91°N / 4.82°E
Nearest volcano: Fonualei (91 km / 57 mi)
Nearby towns and cities:
151 km (94 mi) WNW of Neiafu (pop: 4,320) --> See nearby quakes!
229 km (142 mi) NNW of Pangai (pop: 1,740) --> See nearby quakes!
263 km (163 mi) SSW of Hihifo (pop: 815) --> See nearby quakes!
359 km (223 mi) N of Kolonga (pop: 1,100) --> See nearby quakes!
359 km (223 mi) N of Nukalofa (Nuku'alofa) (pop: 22,400) --> See nearby quakes!
359 km (223 mi) N of Nuku‘alofa (pop: 22,400) --> See nearby quakes!
382 km (237 mi) N of ‘Ohonua (Ohonua) (pop: 1,240) --> See nearby quakes!
508 km (316 mi) SE of Alo (Wallis & Futuna) (pop: 239) --> See nearby quakes!
Weather at epicenter at time of quake:
Scattered Clouds 24.8°C (77 F), humidity: 63%, wind: 9 m/s (17 kts) from ESE
Primary data source: BMKG (Meteorological, Climatological, and Geophysical Agency of Indonesia)
Estimated released energy: 1.4 x 1012 joules (392 megawatt hours, equivalent to 338 tons of TNT) | about seismic energy
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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.
Mag.DepthLocationSource
4.9230 kmTonga IslandsBMKG

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.
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