Very strong mag. 6.3 earthquake - 120 km east of Miyako, Iwate, Japan, on Tuesday, October 28, 1952 at 06:31 GMT
Quake Data | Interactive map | User Reports | Aftershocks | Earlier quakes here | Quakes in Japan | Iwate | Aomori | Saitama | Tokyo
Very strong magnitude 6.3 earthquake at 15 km depth
Earthquake details
| Date & time | Oct 28, 1952 06:31:04 UTC |
| Local time at epicenter | |
| Status | Confirmed |
| Magnitude | 6.3 |
| Depth | 15.0 km |
| Epicenter latitude / longitude | 39.423°N / 143.31°E  (North Pacific Ocean, Japan) |
| Antipode | 39.423°S / 36.69°W |
| Shaking intensity | Strong shaking near epicenter |
| Felt | 0 reports |
| Primary data source | USGS (United States Geological Survey) |
| Nearest volcano | Nanashigure (201 km / 125 mi) |
| Nearby towns and cities | 117 km (73 mi) E of Yamada (Shimohei-gun) (pop: 20,100) | Show on map | Quakes nearby 120 km (75 mi) E of Miyako (pop: 51,700) | Show on map | Quakes nearby 125 km (78 mi) E of Kamaishi (pop: 43,100) | Show on map | Quakes nearby 143 km (89 mi) ENE of Ofunato (pop: 35,400) | Show on map | Quakes nearby 188 km (117 mi) E of Morioka (pop: 295,200) | Show on map | Quakes nearby 189 km (117 mi) E of Hanamaki (pop: 73,100) | Show on map | Quakes nearby 189 km (118 mi) E of Kitakami (pop: 93,900) | Show on map | Quakes nearby 195 km (121 mi) SE of Hachinohe (pop: 239,000) | Show on map | Quakes nearby 506 km (315 mi) NE of Saitama (pop: 1,193,400) | Show on map | Quakes nearby 524 km (325 mi) NE of Tokyo (pop: 8,336,600) | Show on map | Quakes nearby |
| Estimated seismic energy released | 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 | 15 km | off the east coast of Honshu, Japan | 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 |
| Oct 31, 1952 16:37 70 years ago | 6.5 20 km | 144 km SE of Miyako, Iwate, Japan | More |
| Oct 28, 1952 16:45 70 years ago | 6.0 15 km | 131 km E of Miyako, Iwate, Japan | More |
Earlier earthquakes in the same area
Click here to search our database for earlier earthquakes in the same area since 1900!
