Minor mag. 1.4 earthquake - Explosion - 4 Km NW of West Longview, Washington, USA, on Friday, 9 April 2021 at 22:15 (GMT) -
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Minor magnitude 1.4 earthquake at 0 km depth
10 Apr 05:02 UTC: First to report: USGS after 7 hours.
Date & time: 9 Apr 2021 22:15:13 UTC -
Depth: 0.3 km
Epicenter latitude / longitude: 46.19933°N / 123.03217°W (Washington, United States)
Nearest volcano: Mount St. Helens (66 km / 41 mi)
Nearby towns and cities:
4 km (3 mi) NW of West Longview (pop: 2,700) --> See nearby quakes!
10 km (6 mi) NW of Longview (Cowlitz County) (pop: 36,800) --> See nearby quakes!
11 km (7 mi) WNW of Kelso (Cowlitz County) (pop: 11,900) --> See nearby quakes!
13 km (8 mi) SW of Castle Rock (pop: 2,180) --> See nearby quakes!
69 km (43 mi) NNW of Vancouver (pop: 172,900) --> See nearby quakes!
75 km (47 mi) N of Hillsboro (Oregon) (pop: 102,300) --> See nearby quakes!
80 km (50 mi) NNW of Portland (Oregon) (pop: 632,300) --> See nearby quakes!
81 km (50 mi) NNW of Beaverton (Oregon) (pop: 96,600) --> See nearby quakes!
91 km (56 mi) NNW of Gresham (Oregon) (pop: 110,600) --> See nearby quakes!
94 km (58 mi) S of Olympia (pop: 50,300) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 7.9 x 106 joules (2.21 kilowatt hours) 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.
|1.4||0.3 km||Explosion - 4 Km NW of West Longview, Washington, USA||USGS|
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.At magnitude 1.4, such a quake wouldn't normally be felt by people, but could be recorded instrumentally.