Strong mag. 5.5 earthquake - 7.8 mi southeast of Mountain View, King County, Washington, USA, on Sunday, April 29, 1945 at 20:16 GMT
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Strong magnitude 5.5 earthquake at 0 km depth
Earthquake details
Date & time | Apr 29, 1945 20:16:17 UTC |
Local time at epicenter | |
Status | Confirmed |
Magnitude | 5.5 |
Depth | 0.0 km |
Epicenter latitude / longitude | 47.4°N / 121.7°W ![]() |
Antipode | 47.4°S / 58.3°E |
Shaking intensity | Very strong shaking near epicenter |
Felt | 0 reports |
Primary data source | USGS (United States Geological Survey) |
Nearest volcano | Mount Rainier (61 km / 38 mi) |
Nearby towns and cities | 8 km (5 mi) SSE of Riverbend (pop: 2,130) | Show on map | Quakes nearby 40 km (25 mi) ESE of Renton (pop: 100,200) | Show on map | Quakes nearby 40 km (25 mi) E of Kent (pop: 127,000) | Show on map | Quakes nearby 40 km (25 mi) E of Kent (pop: 127,000) | Show on map | Quakes nearby 41 km (26 mi) ENE of Auburn (pop: 77,000) | Show on map | Quakes nearby 44 km (28 mi) ESE of Bellevue (pop: 139,800) | Show on map | Quakes nearby 47 km (29 mi) E of Federal Way (pop: 95,200) | Show on map | Quakes nearby 53 km (33 mi) ESE of Seattle (pop: 684,500) | Show on map | Quakes nearby 58 km (36 mi) ENE of Tacoma (pop: 207,900) | Show on map | Quakes nearby 99 km (62 mi) ENE of Olympia (pop: 50,300) | Show on map | Quakes nearby |
Estimated seismic energy released | 1.1 x 1013 joules (3.12 gigawatt hours, equivalent to 2682 tons of TNT or 0.2 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 |
5.5 | 0 km | Washington (USA) | USGS |
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Aftershocks
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Recorded aftershocks, latest first (0 quake)
So far, no aftershocks have been registered.
Earlier earthquakes in the same area
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