Moderate mag. 5.0 earthquake - Gulf of Alaska, 22 mi southeast of Perryville, Lake and Peninsula County, Alaska, USA, on 2018-10-09 21:27:58 -09:00
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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.
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.
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!
80 km (50 mi) SSW of Chignik (pop: 87) --> See nearby quakes!
107 km (66 mi) ENE of Sand Point (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!
6063 km (3767 mi) NW of Washington (District of Columbia) (pop: 601,700) --> See nearby quakes!
6063 km (3767 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
69 km (43 mi) NE of Big Koniuji Island --> See nearby quakes!
102 km (64 mi) NNE of Chernabura Island --> 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
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 5.0 | 42 km | - 61km SSW of Chignik Lake, Alaska | USGS |
| M 5.1 | 10 km | Alaska Peninsula | GFZ |
| M 5.0 | 60 km | ALASKA PENINSULA | EMSC |
| M 5.2 | 50 km | Alaska Peninsula | GeoAu |
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)
Aftershocks
Moderate mag. 5.0 earthquake - Gulf of Alaska, 22 mi southeast of Perryville, Lake and Peninsula County, Alaska, USA, on 2018-10-09 21:27:58 -09:00Please check again later while we are collecting more data.
Earlier earthquakes in the same area
Moderate mag. 5.0 earthquake - Gulf of Alaska, 22 mi southeast of Perryville, Lake and Peninsula County, Alaska, USA, on 2018-10-09 21:27:58 -09:00
Click here to search our database for earlier earthquakes in the same area since 1900!
