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Strong mag. 5.1 earthquake - Olympic Peninsula, Washington (USA), on Sunday, October 27, 1940 at 22:29 GMT

Strong mag. 5.1 earthquake - Olympic Peninsula, Washington (USA), on Sunday, October 27, 1940 at 22:29 GMT Strong mag. 5.1 earthquake - Olympic Peninsula, Washington (USA), on Sunday, October 27, 1940 at 22:29 GMT

Strong magnitude 5.1 earthquake at 0 km depth

Earthquake details

Date & timeOct 27, 1940 22:29:18 UTC
Local time at epicenter
StatusConfirmed
Magnitude5.1
Depth0.0 km
Epicenter latitude / longitude47.2°N / 123.4°W (Washington, United States)
Antipode47.2°S / 56.6°E
Shaking intensityStrong shaking near epicenter
Felt0 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoMount Rainier (130 km / 81 mi)
Nearby towns and cities22 km (14 mi) N of Elma (pop: 3,030) | Show on map | Quakes nearby
40 km (25 mi) NE of Aberdeen (Grays Harbor County) (pop: 16,300) | Show on map | Quakes nearby
42 km (26 mi) WNW of Olympia (pop: 50,300) | Show on map | Quakes nearby
43 km (27 mi) WNW of Tumwater (Thurston County) (pop: 19,200) | Show on map | Quakes nearby
47 km (29 mi) WNW of Lacey (pop: 46,400) | Show on map | Quakes nearby
67 km (41 mi) W of Lakewood (pop: 59,800) | Show on map | Quakes nearby
72 km (45 mi) W of Tacoma (pop: 207,900) | Show on map | Quakes nearby
83 km (52 mi) W of Federal Way (pop: 95,200) | Show on map | Quakes nearby
92 km (57 mi) WSW of Seattle (pop: 684,500) | Show on map | Quakes nearby
195 km (121 mi) NNW of Portland (Oregon) (pop: 632,300) | Show on map | Quakes nearby
Estimated seismic energy released2.8 x 1012 joules (783 megawatt hours, equivalent to 674 tons of TNT) | about seismic energy
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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.DepthLocationSource
5.10 kmOlympic Peninsula, Washington (USA)USGS
Note: for quakes of 2012 and earlier, our database often contains only records from 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.
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Aftershocks

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Recorded aftershocks, latest first (0 quake)


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Earlier earthquakes in the same area

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