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Weak mag. 3.1 earthquake - 54 mi northeast of Susitna North, Matanuska-Susitna, Alaska, USA, on Sunday, Mar 13, 2022 at 12:27 pm (GMT -8) -

Weak mag. 3.1 earthquake - 54 mi northeast of Susitna North, Matanuska-Susitna, Alaska, USA, on Sunday, Mar 13, 2022 at 12:27 pm (GMT -8) Weak mag. 3.1 earthquake - 54 mi northeast of Susitna North, Matanuska-Susitna, Alaska, USA, on Sunday, Mar 13, 2022 at 12:27 pm (GMT -8)

Weak magnitude 3.1 earthquake at 51 km depth

13 Mar 20:29 UTC: First to report: USGS after 2 minutes.
13 Mar 20:30: Magnitude recalculated from 3.0 to 3.1. Hypocenter depth recalculated from 57.0 to 52.9 km (from 35 to 33 mi). Epicenter location corrected by 1.4 km (0.9 mi) towards NNE.
... [show all] ...
13 Mar 20:37: Hypocenter depth recalculated from 50.8 to 51.0 km (from 32 to 32 mi).
Update Sun, 13 Mar 2022, 20:42

Small magnitude 3.1 quake hits 41 miles south of Cantwell, Alaska, United States around noon

3.1 quake 13 Mar 12:27 pm (GMT -8)
3.1 quake 13 Mar 12:27 pm (GMT -8)
The United States Geological Survey reported a magnitude 3.1 quake in the United States near Cantwell, Denali, Alaska, only 15 minutes ago. The earthquake hit around noon on Sunday, March 13th, 2022, at 12:27 pm local time at a moderately shallow depth of 32 miles. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
Our monitoring service identified a second report from the citizen-seismograph network of RaspberryShake which listed the quake at magnitude 3.1 as well. A third agency, the European-Mediterranean Seismological Centre (EMSC), reported the same quake at magnitude 3.1.
According to preliminary calculations, we do not expect that the quake was felt by many people and did not cause any damage. In Cantwell (pop. 220, 41 miles away), the quake was probably not felt.

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Earthquake details

Date & timeMar 13, 2022 20:27:08 UTC -
Local time at epicenterSunday, Mar 13, 2022 at 12:27 pm (GMT -8)
StatusConfirmed
Magnitude3.1
Depth51.0 km
Epicenter latitude / longitude62.8055°N / 148.8743°W (Matanuska-Susitna, Alaska, United States)
Antipode62.806°S / 31.126°E
Shaking intensityVery weak shaking
Felt0 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoBuzzard Creek (142 km / 88 mi)
Nearby towns and cities65 km (41 mi) S of Cantwell (pop: 219) | Show on map | Quakes nearby
87 km (54 mi) NE of Susitna North (pop: 1,260) | Show on map | Quakes nearby
114 km (71 mi) N of Sutton-Alpine (pop: 1,450) | Show on map | Quakes nearby
120 km (74 mi) N of Fishhook (pop: 4,680) | Show on map | Quakes nearby
132 km (82 mi) NNE of Willow Creek (pop: 2,100) | Show on map | Quakes nearby
135 km (84 mi) N of Palmer (pop: 6,790) | Show on map | Quakes nearby
139 km (87 mi) N of Wasilla (pop: 9,280) | Show on map | Quakes nearby
140 km (87 mi) NNE of Houston (pop: 2,210) | Show on map | Quakes nearby
149 km (92 mi) NNE of Knik-Fairview (pop: 14,900) | Show on map | Quakes nearby
153 km (95 mi) NNE of Big Lake (pop: 3,350) | Show on map | Quakes nearby
Weather at epicenter at time of quakeFew Clouds -13.4°C (8 F), humidity: 85%, wind: 4 m/s (8 kts) from ENE
Estimated seismic energy released2.8 x 109 joules (783 kilowatt hours, equivalent to 0.674 tons of TNT) | about seismic energy
Show interactive Map
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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
3.151 km65 Km S of Cantwell, AlaskaUSGS
3.259 kmCENTRAL ALASKAEMSC
3.151 kmCentral AlaskaRaspberryShake

Seismograms

Seismic station: Susitna Watana 7, AK, USA (WAT7/AK network) | Distance from quake: 3 km / 2 mi | Show on map | Station Info
Seismic station Susitna Watana 7, AK, USA: vertical movement plot around time of quake (source: IRIS/BUD)
Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Source: IRIS Buffer of Uniform Data (BUD) webtool
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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.

Earlier earthquakes in the same area

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