Moderate mag. 3.9 earthquake - 35 mi east of Port Heiden, Lake and Peninsula County, Alaska, USA, on Friday, 15 April 2016 at 13:23 (GMT)
This quake was likely an aftershock of the 6.2 quake 29 mi northeast of Port Heiden, Lake and Peninsula County, Alaska, USA, 2 April 2016 05:50 GMT, which had occurred 13 days earlier.
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Moderate magnitude 3.9 earthquake at 2 km depth
15 Apr 13:54 UTC: First to report: EMSC after 30 minutes.
Date & time: 15 Apr 2016 13:23:45 UTC
Magnitude: 3.9
Depth: 2.0 km
Epicenter latitude / longitude: 57.08°N / 157.73°W

Nearest volcano: Yantarni (34 km / 21 mi)
Nearby towns and cities:
52 km (32 mi) SSW of Ugashik (pop: 12) --> See nearby quakes!
56 km (35 mi) ENE of Port Heiden (pop: 98) --> See nearby quakes!
99 km (61 mi) NNE of Chignik Lagoon (pop: 78) --> See nearby quakes!
259 km (161 mi) NE of Sand Point (pop: 1,060) --> See nearby quakes!
316 km (197 mi) WSW of Kodiak Station (pop: 1,300) --> See nearby quakes!
328 km (204 mi) WSW of Kodiak (pop: 6,250) --> See nearby quakes!
363 km (225 mi) NE of King Cove (pop: 1,010) --> See nearby quakes!
459 km (285 mi) SW of Homer (pop: 5,520) --> See nearby quakes!
525 km (326 mi) SW of Kalifornsky (pop: 7,850) --> See nearby quakes!
536 km (333 mi) SW of Kenai (pop: 7,660) --> See nearby quakes!
Primary data source: EMSC (European-Mediterranean Seismological Centre)
Estimated released energy: 4.5 x 1010 joules (12.4 megawatt hours, equivalent to 10.7 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 3.9 | 2 km | ALASKA PENINSULA | EMSC |
M 3.6 | 15 km | - 116km NNE of Chignik Lake, Alaska | USGS |
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