Very strong mag. 6.5 earthquake - 57 km east of Shikotan Island, Yuzhno-Kurilsky District, Sakhalin Oblast, Russia, on Sunday, February 1, 1925 at 05:24 GMT
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Very strong magnitude 6.5 earthquake at 30 km depth
Earthquake details
| Date & time | Feb 1, 1925 05:24:03 UTC |
| Local time at epicenter | |
| Status | Confirmed |
| Magnitude | 6.5 |
| Depth | 30.0 km |
| Epicenter latitude / longitude | 43.707°N / 147.447°E  (North Pacific Ocean, Russia) |
| Antipode | 43.707°S / 32.553°W |
| Shaking intensity | Strong shaking near epicenter |
| Felt | 0 reports |
| Primary data source | USGS (United States Geological Survey) |
| Nearest volcano | Berutarube (93 km / 58 mi) |
| Nearby towns and cities | 59 km (37 mi) E of Shikotan (pop: 2,100) | Show on map | Quakes nearby 132 km (82 mi) ESE of Yuzhno-Kurilsk (pop: 6,470) | Show on map | Quakes nearby 157 km (97 mi) ENE of Nemuro (Japan) (pop: 31,200) | Show on map | Quakes nearby 186 km (116 mi) E of Shibetsu (Japan) (pop: 21,700) | Show on map | Quakes nearby 257 km (160 mi) E of Abashiri (Japan) (pop: 42,500) | Show on map | Quakes nearby 262 km (162 mi) ENE of Kushiro (Japan) (pop: 183,600) | Show on map | Quakes nearby 286 km (178 mi) E of Kitami (Japan) (pop: 113,100) | Show on map | Quakes nearby 354 km (220 mi) ENE of Obihiro (Japan) (pop: 173,900) | Show on map | Quakes nearby 490 km (304 mi) SE of Korsakov (pop: 35,100) | Show on map | Quakes nearby 516 km (320 mi) SE of Yuzhno-Sakhalinsk (pop: 176,500) | Show on map | Quakes nearby |
| Estimated seismic energy released | 3.5 x 1014 joules (98.6 gigawatt hours, equivalent to 84802 tons of TNT or 5.3 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 |
| 6.5 | 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 (2 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 |
Earlier earthquakes in the same area
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