Mag. 4.5 earthquake - North Pacific Ocean, 95 mi south of Sand Point, Alaska, USA, on Tuesday, 27 Oct 2020 3:06 am (GMT -11) -
This quake was likely an aftershock of the 7.6 quake Gulf of Alaska, 60 mi southeast of Sand Point, Aleutians East County, Alaska, USA, 19 Oct 2020 11:54 am (GMT -9), which had occurred 8 days earlier.
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Light magnitude 4.5 earthquake at 14 km depth
27 Oct 14:33 UTC: First to report: GFZ after 28 minutes.
27 Oct 14:44: Now using data updates from USGS
27 Oct 15:14: Hypocenter depth recalculated from 14.1 to 14.2 km (from 8.8 to 8.8 mi). Epicenter location corrected by 1.5 km (0.9 mi) towards NW.
31 Oct 18:03: Now using data updates from USGS
27 Oct 14:44: Now using data updates from USGS
27 Oct 15:14: Hypocenter depth recalculated from 14.1 to 14.2 km (from 8.8 to 8.8 mi). Epicenter location corrected by 1.5 km (0.9 mi) towards NW.
31 Oct 18:03: Now using data updates from USGS
Local time at epicenter: Tuesday, 27 Oct 2020 3:06 am (GMT -11)
Magnitude: 4.5
Depth: 14.2 km
Epicenter latitude / longitude: 54.0495°N / 159.6577°W
(North Pacific Ocean, Alaska, United States)Nearest volcano: Dana (181 km / 112 mi)
Nearby towns and cities:
153 km (95 mi) SSE of Sand Point (pop: 1,060) --> See nearby quakes!
205 km (127 mi) ESE of King Cove (pop: 1,010) --> See nearby quakes!
210 km (130 mi) S of Perryville (pop: 113) --> See nearby quakes!
234 km (146 mi) ESE of Cold Bay (pop: 123) --> See nearby quakes!
252 km (157 mi) SSW of Chignik Lake (pop: 73) --> See nearby quakes!
399 km (248 mi) E of Akutan (pop: 1,040) --> See nearby quakes!
450 km (280 mi) E of Unalaska (pop: 4,490) --> See nearby quakes!
614 km (381 mi) SW of Kodiak (pop: 6,250) --> See nearby quakes!
6169 km (3833 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
6169 km (3833 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
82 km (51 mi) S of Chernabura Island --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 3.5 x 1011 joules (98.6 megawatt hours, equivalent to 84.8 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 4.5 | 14 km | 153 Km SSE of Sand Point, Alaska, USA | USGS |
| M 4.5 | 10 km | South Of Alaska, USA | EMSC |
| M 4.7 | 10 km | South of Alaska, USA | GFZ |
| M 4.5 | 14 km | 152 Km SSE of Sand Point, Alaska, USA | USGS |
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
There are no user reports for this quake yet. If you felt it be the first to report it!
Earlier earthquakes in the same area
Mag. 4.5 earthquake - North Pacific Ocean, 95 mi south of Sand Point, Alaska, USA, on Tuesday, 27 Oct 2020 3:06 am (GMT -11)
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