Strong mag. 5.6 earthquake - Gulf of Alaska, 61 mi south of Sand Point, Aleutians East County, Alaska, USA, on Thursday, 16 December 1999 at 23:51 (GMT)
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Strong magnitude 5.6 earthquake at 33 km depth
Date & time: 16 Dec 1999 23:51:27 UTC
Depth: 33.0 km
Epicenter latitude / longitude: 54.506°N / 161.039°W (Gulf of Alaska, Alaska, United States)
Nearest volcano: Dutton (108 km / 67 mi)
Nearby towns and cities:
99 km (61 mi) SSW of Sand Point (pop: 1,060) --> See nearby quakes!
103 km (64 mi) SE of King Cove (pop: 1,010) --> See nearby quakes!
132 km (82 mi) SE of Cold Bay (pop: 123) --> See nearby quakes!
157 km (98 mi) ESE of False Pass (pop: 40) --> See nearby quakes!
167 km (104 mi) S of Nelson Lagoon (pop: 52) --> See nearby quakes!
197 km (122 mi) SW of Perryville (pop: 113) --> See nearby quakes!
242 km (150 mi) SW of Chignik Lake (pop: 73) --> See nearby quakes!
255 km (159 mi) SW of Chignik Lagoon (pop: 78) --> See nearby quakes!
310 km (193 mi) E of Akutan (pop: 1,040) --> See nearby quakes!
364 km (226 mi) ENE of Unalaska (pop: 4,490) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.6 x 1013 joules (4.4 gigawatt hours, equivalent to 3788 tons of TNT or 0.2 atomic bombs!) 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.
|M 5.6||33 km||Alaska Peninsula (USA)||USGS|
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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More infoRecorded aftershocks, latest first (2 quakes):
- 29 Jan 2000 20:56 UTC| M 2.2 |15 km (9.3 mi) depth|14 km (9 mi) distance| USGS | Details
- 25 Jan 2000 23:00 UTC| M 3.0 |4.8 km (3 mi) depth|9 km (5 mi) distance| USGS | Details