Moderate mag. 5.0 earthquake - Gulf of Alaska, 22 mi southeast of Perryville, Lake and Peninsula, Alaska, USA, on 2018-10-09 21:27:58 -09:00

Moderate mag. 5.0 earthquake - Gulf of Alaska, 22 mi southeast of Perryville, Lake and Peninsula, Alaska, USA, on 2018-10-09 21:27:58 -09:00

Moderate magnitude 5.0 earthquake at 42 km depth

10 Oct 06:34 UTC: First to report: USGS after 6 minutes.
Oct 10 06:44: Magnitude recalculated from 5.1 to 5.0.
Hypocenter depth recalculated from 50.0 to 57.4 km.
Hypocenter depth recalculated from 57.4 to 41.7 km.
Date & time: 10 Oct 2018 06:27:58 UTC
Local time at epicenter: 2018-10-09 21:27:58 -09:00
Magnitude: 5
Depth: 41.7 km
Epicenter latitude / longitude: 55.6252°N / 158.886°W (Gulf of Alaska, Alaska, United States)
Nearest volcano: Veniaminof (76 km / 47 mi)
Nearby towns and cities:
36 km (22 mi) SSE of Perryville (pop: 113) --> See nearby quakes!
71 km (44 mi) S of Chignik Lake (pop: 73) --> See nearby quakes!
79 km (49 mi) SSW of Chignik Lagoon (pop: 78) --> See nearby quakes!
107 km (66 mi) ENE of Sandpoint (pop: 1,060) --> See nearby quakes!
148 km (92 mi) S of Port Heiden (pop: 98) --> See nearby quakes!
151 km (94 mi) ESE of Nelson Lagoon (pop: 52) --> See nearby quakes!
226 km (140 mi) ENE of King Cove (pop: 1,010) --> See nearby quakes!
247 km (154 mi) ENE of Cold Bay (pop: 123) --> See nearby quakes!
443 km (276 mi) WSW of Womens Bay (pop: 719) --> See nearby quakes!
451 km (281 mi) WSW of Kodiak Station (pop: 1,300) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 2 x 1012 joules (554 megawatt hours, equivalent to 477 tons of TNT) More info
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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.
5.042 km- 61km SSW of Chignik Lake, AlaskaUSGS
5.110 kmAlaska PeninsulaGFZ
5.250 kmAlaska PeninsulaGeoAu

User reports for this quake (3)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Eagle river / Weak shaking (MMI III)
Perryville (36.3 km NNW of epicenter) [Map] / Moderate shaking (MMI V) (reported through our app)
80.1 km NNE of epicenter [Map] / Light shaking (MMI IV) (reported through our app)
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More info
Recorded aftershocks, latest first (0 quakes):
So far, no aftershocks have been registered.

Earlier earthquakes in the same area

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