Minor mag. 2.5 earthquake - 44 Km WNW of Clam Gulch, Alaska, USA, on Thursday, 11 Feb 2021 12:00 am (GMT -9) -
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Minor magnitude 2.5 earthquake at 78 km depth
11 Feb 09:03 UTC: First to report: USGS after 3 minutes.
11 Feb 09:05: Magnitude recalculated from 2.2 to 2.5.
11 Feb 09:06: Hypocenter depth recalculated from 79.9 to 77.6 km (from 50 to 48 mi). Epicenter location corrected by 1 km (0.6 mi) towards NNW.
11 Feb 09:12: Hypocenter depth recalculated from 77.6 to 78.1 km (from 48 to 49 mi).
11 Feb 09:05: Magnitude recalculated from 2.2 to 2.5.
11 Feb 09:06: Hypocenter depth recalculated from 79.9 to 77.6 km (from 50 to 48 mi). Epicenter location corrected by 1 km (0.6 mi) towards NNW.
11 Feb 09:12: Hypocenter depth recalculated from 77.6 to 78.1 km (from 48 to 49 mi).
Date & time: 11 Feb 2021 09:00:34 UTC -
Local time at epicenter: Thursday, 11 Feb 2021 12:00 am (GMT -9)
Magnitude: 2.5
Depth: 78.1 km
Epicenter latitude / longitude: 60.3991°N / 152.1142°W

Nearest volcano: Redoubt (36 km / 22 mi)
Nearby towns and cities:
44 km (27 mi) WNW of Clam Gulch (pop: 176) --> See nearby quakes!
45 km (28 mi) W of Kalifornsky (pop: 7,850) --> See nearby quakes!
50 km (31 mi) WSW of Kenai (pop: 7,660) --> See nearby quakes!
56 km (35 mi) SW of Nikiski (pop: 4,490) --> See nearby quakes!
59 km (37 mi) W of Soldotna (pop: 4,540) --> See nearby quakes!
76 km (47 mi) WSW of Sterling (pop: 5,620) --> See nearby quakes!
90 km (56 mi) NNW of Homer (pop: 5,520) --> See nearby quakes!
151 km (94 mi) SW of Anchorage (pop: 298,700) --> See nearby quakes!
172 km (107 mi) SW of Eagle River (pop: 24,800) --> See nearby quakes!
172 km (107 mi) SW of Eagle River (Anchorage) (pop: 24,800) --> See nearby quakes!
Weather at epicenter at time of quake:
Light Snow
-5.3°C (22 F), humidity: 86%, wind: 9 m/s (18 kts) from NE
Primary data source: USGS (United States Geological Survey)Light Snow

Estimated released energy: 3.5 x 108 joules (98.6 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.
Magnitude | Depth | Location | Source |
2.5 | 78 km | 44 Km WNW of Clam Gulch, Alaska, USA | USGS |
2.9 | 115 km | SOUTHERN ALASKA, USA | EMSC |
User reports for this quake
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