Light mag. 3.1 earthquake - 23 mi northeast of Port Heiden, Lake and Peninsula County, Alaska, USA, on 2016-04-07 20:17:30 -08:00
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 6 days earlier.
Quake Data | Interactive map | User Reports | Earlier quakes in same area | Quakes in the US| Alaska

Light magnitude 3.1 earthquake at 13 km depth
8 Apr 04:58 UTC: First to report: USGS after 41 minutes.
Date & time: 8 Apr 2016 04:17:30 UTC
Local time at epicenter: 2016-04-07 20:17:30 -08:00
Magnitude: 3.1
Depth: 13.1 km
Epicenter latitude / longitude: 57.0651°N / 158.0721°W

Nearest volcano: Aniakchak (21 km / 13 mi)
Nearby towns and cities:
36 km (23 mi) ENE of Port Heiden (pop: 98) --> See nearby quakes!
64 km (40 mi) SW of Ugashik (pop: 12) --> See nearby quakes!
89 km (55 mi) NNE of Chignik Lagoon (pop: 78) --> See nearby quakes!
99 km (62 mi) NNE of Chignik Lake (pop: 73) --> See nearby quakes!
135 km (84 mi) SSW of Egegik (pop: 106) --> See nearby quakes!
144 km (90 mi) NNE of Perryville (pop: 113) --> See nearby quakes!
194 km (121 mi) SSW of South Naknek (pop: 79) --> See nearby quakes!
199 km (124 mi) SSW of King Salmon (pop: 374) --> See nearby quakes!
244 km (152 mi) NE of Sand Point (pop: 1,060) --> See nearby quakes!
345 km (214 mi) NE of King Cove (pop: 1,010) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 2.8 x 109 joules (783 kilowatt hours, equivalent to 0.674 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 3.1 | 13 km | - 99km NNE of Chignik Lake, Alaska | USGS |
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
be the first to report it!
There are no user reports for this quake yet. If you felt it Earlier earthquakes in the same area
Click here to search our database for earlier earthquakes in the same area since 1900!