Strong mag. 6.0 earthquake - North Pacific Ocean, 197 km east of Kuril'sk, Sakhalin Oblast, Russia, on Sunday, Apr 23, 1961 4:51 pm (GMT +0)

Strong mag. 6.0 earthquake - North Pacific Ocean, 197 km east of Kuril\'sk, Sakhalin Oblast, Russia, on Sunday, Apr 23, 1961 4:51 pm (GMT +0)

Strong magnitude 6.0 earthquake at 33 km depth

Date & time: Apr 23, 1961 16:51:04 UTC
Local time at epicenter: Sunday, Apr 23, 1961 4:51 pm (GMT +0)
Magnitude: 6
Depth: 33.3 km
Epicenter latitude / longitude: 44.684°N / 150.261°E (North Pacific Ocean, Russia)
Antipode: 44.684°S / 29.739°W
Nearest volcano: Ivao (129 km / 80 mi)
Nearby towns and cities:
197 km (122 mi) ESE of Kuril'sk (pop: 1,720) --> See nearby quakes!
299 km (186 mi) ENE of Shikotan (pop: 2,100) --> See nearby quakes!
356 km (221 mi) ENE of Otrada (pop: 3,220) --> See nearby quakes!
357 km (222 mi) ENE of Yuzhno-Kurilsk (pop: 6,470) --> See nearby quakes!
404 km (251 mi) ENE of Nemuro (Japan) (pop: 31,200) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 6.3 x 1013 joules (17.5 gigawatt hours, equivalent to 15080 tons of TNT or 0.9 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.
Mag.DepthLocationSource
6.033 kmeast of the Kuril Islands (Russia)USGS
Note: for quakes of 2012 and earlier, our database often contains only records from USGS.

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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Aftershocks

[More info]

Recorded aftershocks, latest first (4 quakes)

Date and timeMag
Depth
LocationDetails
Apr 30, 1961 11:15
61 years ago
5.9

41 km
North Pacific Ocean, 181 km E of Kuril'sk, Sakhalin Oblast, RussiaMore
Apr 26, 1961 19:32
61 years ago
5.6

34 km
North Pacific Ocean, 191 km E of Kuril'sk, Sakhalin Oblast, RussiaMore
Apr 26, 1961 07:39
61 years ago
6.0

38 km
North Pacific Ocean, 197 km E of Kuril'sk, Sakhalin Oblast, RussiaMore
Apr 25, 1961 01:17
61 years ago
5.9

33 km
North Pacific Ocean, 211 km E of Kuril'sk, Sakhalin Oblast, RussiaMore

Earlier earthquakes in the same area

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