Very strong mag. 6.8 earthquake - 74 km east of Shikotan Island, Yuzhno-Kurilsky District, Sakhalin Oblast, Russia, on Wednesday, January 28, 1925 at 04:05 GMT
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Very strong magnitude 6.8 earthquake at 30 km depth
Magnitude: 6.8
Depth: 30.0 km
Epicenter latitude / longitude: 43.558°N / 147.601°E

Antipode: 43.558°S / 32.399°W
Nearest volcano: Berutarube (113 km / 70 mi)
Nearby towns and cities:
76 km (47 mi) ESE of Shikotan (pop: 2,100) --> See nearby quakes!
149 km (93 mi) ESE of Yuzhno-Kurilsk (pop: 6,470) --> See nearby quakes!
166 km (103 mi) E of Nemuro (Japan) (pop: 31,200) --> See nearby quakes!
199 km (124 mi) E of Shibetsu (Japan) (pop: 21,700) --> See nearby quakes!
269 km (167 mi) ENE of Kushiro (Japan) (pop: 183,600) --> See nearby quakes!
272 km (169 mi) E of Abashiri (Japan) (pop: 42,500) --> See nearby quakes!
300 km (186 mi) E of Kitami (Japan) (pop: 113,100) --> See nearby quakes!
363 km (226 mi) ENE of Obihiro (Japan) (pop: 173,900) --> See nearby quakes!
510 km (317 mi) SE of Korsakov (pop: 35,100) --> See nearby quakes!
536 km (333 mi) SE of Yuzhno-Sakhalinsk (pop: 176,500) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1 x 1015 joules (278 gigawatt hours, equivalent to 2.4 x 105 tons of TNT or 14.9 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 |
6.8 | 30 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 (3 quakes)
Date and time![]() | Mag Depth | Location | Details |
Feb 2, 1925 19:46 97 years ago | 6.8 35 km | 123 km E of Shikotan Island, Yuzhno-Kurilsky District, Sakhalin Oblast, Russia | More |
Feb 2, 1925 13:29 97 years ago | 6.5 30 km | 67 km E of Shikotan Island, Yuzhno-Kurilsky District, Sakhalin Oblast, Russia | More |
Feb 1, 1925 05:24 97 years ago | 6.5 30 km | 57 km E of Shikotan Island, Yuzhno-Kurilsky District, Sakhalin Oblast, Russia | More |
Earlier earthquakes in the same area
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