Very strong mag. 6.3 earthquake - 191 km east of Yuzhno-Kurilsk, Sakhalin Oblast, Russia, on Wednesday, August 13, 1969 at 22:57 GMT
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Very strong magnitude 6.3 earthquake at 31 km depth
Magnitude: 6.3
Depth: 31.0 km
Epicenter latitude / longitude: 44.14°N / 148.242°E

Antipode: 44.14°S / 31.758°W
Nearest volcano: Urbich Caldera (98 km / 61 mi)
Nearby towns and cities:
124 km (77 mi) SSE of Kuril'sk (pop: 1,720) --> See nearby quakes!
127 km (79 mi) ENE of Shikotan (pop: 2,100) --> See nearby quakes!
190 km (118 mi) E of Otrada (pop: 3,220) --> See nearby quakes!
191 km (118 mi) E of Yuzhno-Kurilsk (pop: 6,470) --> See nearby quakes!
233 km (145 mi) ENE of Nemuro (Japan) (pop: 31,200) --> See nearby quakes!
255 km (158 mi) ENE of Shibetsu (Japan) (pop: 21,700) --> See nearby quakes!
318 km (197 mi) E of Abashiri (Japan) (pop: 42,500) --> See nearby quakes!
334 km (207 mi) E of Motomachi (Abashiri District, Japan) (pop: 23,000) --> See nearby quakes!
338 km (210 mi) ENE of Kushiro (Japan) (pop: 183,600) --> See nearby quakes!
350 km (218 mi) E of Kitami (Japan) (pop: 113,100) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.8 x 1014 joules (49.4 gigawatt hours, equivalent to 42502 tons of TNT or 2.7 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 |
6.3 | 31 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 (8 quakes)
Date and time![]() | Mag Depth | Location | Details |
Oct 25, 1969 12:03 53 years ago | 5.6 45 km | 97 km E of Shikotan, Sakhalin Oblast, Russia | More |
Sep 6, 1969 07:43 53 years ago | 5.7 42 km | 61 km E of Shikotan, Sakhalin Oblast, Russia | More |
Sep 4, 1969 21:12 53 years ago | 5.7 30 km | 59 km E of Shikotan, Sakhalin Oblast, Russia | More |
Aug 30, 1969 08:28 53 years ago | 6.1 27 km | 90 km E of Shikotan, Sakhalin Oblast, Russia | More |
Aug 30, 1969 07:11 53 years ago | 6.4 26 km | 94 km E of Shikotan, Sakhalin Oblast, Russia | More |
Aug 21, 1969 13:24 53 years ago | 5.8 29 km | 187 km E of Yuzhno-Kurilsk, Sakhalin Oblast, Russia | More |
Aug 19, 1969 08:49 53 years ago | 6.6 27 km | 183 km E of Yuzhno-Kurilsk, Sakhalin Oblast, Russia | More |
Aug 18, 1969 11:43 53 years ago | 5.8 25 km | 143 km E of Shikotan, Sakhalin Oblast, Russia | More |
Earlier earthquakes in the same area
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