Mag. 3.3 earthquake - 29 mi south of Skwentna, Matanuska-Susitna County, Alaska, USA, on Sunday, February 22, 2015 09:24:14
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Minor magnitude 3.3 earthquake at 4 km depth
22 Feb 20:10 UTC: First to report: USGS after 1 hour and 46 minutes.
Feb 23 08:10: Magnitude recalculated from 3.5 to 3.3.
Hypocenter depth recalculated from 10.7 to 4.1 km.
Feb 23 08:10: Magnitude recalculated from 3.5 to 3.3.
Hypocenter depth recalculated from 10.7 to 4.1 km.
Local time at epicenter: Sunday, February 22, 2015 09:24:14
Magnitude: 3.3
Depth: 4.1 km
Epicenter latitude / longitude: 61.5877°N / 151.6154°W
(Matanuska-Susitna County, Alaska, United States)Nearest volcano: Hayes (36 km / 22 mi)
Nearby towns and cities:
46 km (29 mi) SSW of Skwentna (pop: 37) --> See nearby quakes!
85 km (53 mi) WSW of Willow (pop: 2,100) --> See nearby quakes!
88 km (55 mi) W of Big Lake (pop: 3,350) --> See nearby quakes!
95 km (59 mi) W of Houston (pop: 2,210) --> See nearby quakes!
100 km (62 mi) WNW of Alaska City (pop: 298,700) --> See nearby quakes!
113 km (70 mi) WNW of Eagle River (pop: 24,800) --> See nearby quakes!
113 km (70 mi) WNW of Eagle River (Anchorage County) (pop: 24,800) --> See nearby quakes!
1022 km (635 mi) WNW of Juneau (pop: 32,800) --> See nearby quakes!
5495 km (3414 mi) NW of Washington (District of Columbia) (pop: 601,700) --> See nearby quakes!
5495 km (3414 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 5.6 x 109 joules (1.56 megawatt hours, equivalent to 1.34 tons of TNT) 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 3.3 | 4.1 km | 85km WSW of Willow, Alaska | USGS |
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Earlier earthquakes in the same area
Mag. 3.3 earthquake - 29 mi south of Skwentna, Matanuska-Susitna County, Alaska, USA, on Sunday, February 22, 2015 09:24:14
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