Moderate mag. 4.6 earthquake - Gulf of Alaska, 98 mi south of Kodiak, Alaska, USA, on Wednesday, 12 April 1978 at 08:56 (GMT)
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Moderate magnitude 4.6 earthquake at 19 km depth
Date & time: 12 Apr 1978 08:56:19 UTC
Depth: 19.0 km
Epicenter latitude / longitude: 56.374°N / 152.543°W (Gulf of Alaska, Alaska, United States)
Nearest volcano: Unnamed 57.87°N/155.42°W (241 km / 150 mi)
Nearby towns and cities:
103 km (64 mi) SSE of Old Harbor (pop: 221) --> See nearby quakes!
118 km (73 mi) ESE of Akhiok (pop: 72) --> See nearby quakes!
146 km (91 mi) S of Womens Bay (pop: 719) --> See nearby quakes!
155 km (96 mi) S of Kodiak Station (pop: 1,300) --> See nearby quakes!
156 km (97 mi) SE of Larsen Bay (pop: 88) --> See nearby quakes!
158 km (98 mi) S of Kodiak (pop: 6,250) --> See nearby quakes!
167 km (104 mi) S of Port Lions (pop: 197) --> See nearby quakes!
368 km (229 mi) S of Homer (pop: 5,520) --> See nearby quakes!
381 km (237 mi) S of Anchor Point (pop: 1,930) --> See nearby quakes!
381 km (237 mi) S of Fritz Creek (pop: 1,930) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 5 x 1011 joules (139 megawatt hours, equivalent to 120 tons of TNT) More info
Data for the same earthquake reported by different agencies
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|4.6||19 km||Kodiak Island region, Alaska (USA)||USGS|
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.