Strong mag. 6.2 earthquake - 56 km east of Onekotan Island, Sakhalin Oblast, Russia, on Tuesday, Sep 11, 1956 at 9:04 pm (GMT +0)
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Strong magnitude 6.2 earthquake at 50 km depth
Local time at epicenter: Tuesday, Sep 11, 1956 at 9:04 pm (GMT +0)
Magnitude: 6.2
Depth: 50.0 km
Epicenter latitude / longitude: 49.439°N / 155.53°E

Antipode: 49.439°S / 24.47°W
Nearest volcano: Nemo Peak (54 km / 34 mi)
Nearby towns and cities:
144 km (89 mi) SSW of Severo-Kuril'sk (pop: 2,420) --> See nearby quakes!
239 km (148 mi) SSW of Ozernovskiy (pop: 2,620) --> See nearby quakes!
435 km (271 mi) SSW of Paratunka (pop: 1,770) --> See nearby quakes!
437 km (272 mi) SSW of Vilyuchinsk (Yelizovsky District) (pop: 25,200) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.3 x 1014 joules (35 gigawatt hours, equivalent to 30089 tons of TNT or 1.9 atomic bombs!) | about seismic energy
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. | Depth | Location | Source |
6.2 | 50 km | Kuril Islands (Russia) | USGS |
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Aftershocks
[More info]
Recorded aftershocks, latest first (2 quakes)
Date and time![]() | Mag Depth | Location | Details |
Nov 28, 1956 19:27 66 years ago | 6.3 48 km | 46 km SE of Onekotan Island, Sakhalin Oblast, Russia | More |
Oct 13, 1956 15:12 66 years ago | 5.4 55 km | 58 km SE of Onekotan Island, Sakhalin Oblast, Russia | More |
Earlier earthquakes in the same area
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