Strong mag. 6.1 earthquake - North Pacific Ocean, 579 km northeast of Tokio, Tokyo, Japan, on Tuesday, 15 April 1969 at 17:30 (GMT)
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Strong magnitude 6.1 earthquake at 10 km depth
Magnitude: 6.1
Depth: 10.0 km
Epicenter latitude / longitude: 39.854°N / 143.647°E
(North Pacific Ocean, Japan)Nearest volcano: Nanashigure (218 km / 135 mi)
Nearby towns and cities:
579 km (360 mi) NE of Tokyo (pop: 8,336,600) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 8.9 x 1013 joules (24.8 gigawatt hours, equivalent to 21301 tons of TNT or 1.3 atomic bombs!) More info
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.
| Magnitude | Depth | Location | Source |
| M 6.1 | 10 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.
There are no user reports for this quake yet. If you felt it be the first to report it!
Aftershocks of the 6.1 quake North Pacific Ocean, 579 km northeast of Tokio, Tokyo, Japan, 15 April 1969 17:30 GMT
More info
Recorded aftershocks, latest first (4 quakes):- 12 Jul 1969 19:16 UTC| M 6.2 |19.5 km (12.1 mi) depth|8 km (5 mi) distance| USGS | Strong mag. 6.2 earthquake - North Pacific Ocean, 583 km northeast of Tokio, Tokyo, Japan, on Saturday, 12 July 1969 at 19:16 (GMT)
- 12 Jun 1969 07:41 UTC| M 5.8 |15 km (9.3 mi) depth|63 km (39 mi) distance| USGS | Details
- 22 Apr 1969 08:11 UTC| M 6.0 |34.5 km (21.4 mi) depth|26 km (16 mi) distance| USGS | Strong mag. 6.0 earthquake - North Pacific Ocean, 567 km northeast of Tokio, Tokyo, Japan, on Tuesday, 22 April 1969 at 08:11 (GMT)
- 17 Apr 1969 04:56 UTC| M 5.9 |10 km (6.2 mi) depth|28 km (18 mi) distance| USGS | Details
Earlier earthquakes in the same area
Strong mag. 6.1 earthquake - North Pacific Ocean, 579 km northeast of Tokio, Tokyo, Japan, on Tuesday, 15 April 1969 at 17:30 (GMT)Click here to search our database for earlier earthquakes in the same area since 1900!
