Terremoto mayor magnitud 6.6 - Gulf of Alaska, 93 miles S of Kodiak Station, Kodiak Island, Alaska, USA, Wednesday, 12 Apr. 1978
Quake Data | Interactive map | User Reports | Aftershocks | Earlier quakes in same area | Quakes in the US| Alaska | Alaska

Terremoto mayor magnitud 6.6 at 14 km depth
Fecha & hora: 12 Apr 1978 03:42:03 UTC
Magnitud: 6.6
Profundidad: 14.0 km
Epicentro latitud / longitud: 56.423°N / 152.691°W

Volcán mas cercano: Unnamed 57.87°N/155.42°W (230 km / 143 mi)
Nearby towns and cities:
95 km al SSE de Old Harbor (pop: 221) --> ¡Vea sismos cercanos!
107 km al ESE de Akhiok (pop: 72) --> ¡Vea sismos cercanos!
140 km al S de Womens Bay (pop: 719) --> ¡Vea sismos cercanos!
149 km al S de Kodiak Station (pop: 1,300) --> ¡Vea sismos cercanos!
153 km al S de Kodiak (pop: 6,250) --> ¡Vea sismos cercanos!
364 km al S de Homer (pop: 5,520) --> ¡Vea sismos cercanos!
376 km al S de Anchor Point (pop: 1,930) --> ¡Vea sismos cercanos!
378 km al SSO de Fritz Creek (pop: 1,930) --> ¡Vea sismos cercanos!
451 km al SSO de Seward (pop: 2,790) --> ¡Vea sismos cercanos!
452 km al S de Kalifornsky (pop: 7,850) --> ¡Vea sismos cercanos!
Fuente primaria de datos: USGS (United States Geological Survey)
Energía liberada estimada: 5 x 1014 joules (139 gigawatt hours, equivalent to 1.2 x 105 tons of TNT or 7.5 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.
Magnitud | Profundidad | Ubicación | Fuente |
6.6 | 14 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.
be the first to report it!
There are no user reports for this quake yet. If you felt it Aftershocks
More info
Recorded aftershocks, latest first (21 quakes):- 19 Aug 1978 03:58 UTC| M 4.6 |26 km (16.2 mi) depth|3 km (2 mi) distance| USGS | Details
- 19 Jul 1978 18:53 UTC| M 3.0 |33 km (20.5 mi) depth|83 km (52 mi) distance| USGS | Details
- 19 Jul 1978 09:32 UTC| M 5.7 |33 km (20.5 mi) depth|75 km (46 mi) distance| USGS | Details
- 21 Jun 1978 02:37 UTC| M 4.2 |83 km (51.6 mi) depth|97 km (60 mi) distance| USGS | Details
- 03 Jun 1978 23:11 UTC| M 4.4 |33 km (20.5 mi) depth|120 km (74 mi) distance| USGS | Details
- 21 May 1978 14:55 UTC| M 4.7 |33 km (20.5 mi) depth|10 km (6 mi) distance| USGS | Details
- 28 Apr 1978 02:52 UTC| M 4.3 |70 km (43.5 mi) depth|96 km (60 mi) distance| USGS | Details
- 27 Apr 1978 01:41 UTC| M 4.7 |33 km (20.5 mi) depth|17 km (10 mi) distance| USGS | Details
- 22 Apr 1978 13:24 UTC| M 4.7 |33 km (20.5 mi) depth|11 km (7 mi) distance| USGS | Details
- 18 Apr 1978 02:18 UTC| M 4.5 |33 km (20.5 mi) depth|11 km (7 mi) distance| USGS | Details
- 16 Apr 1978 09:50 UTC| M 4.9 |24 km (14.9 mi) depth|27 km (17 mi) distance| USGS | Details
- 14 Apr 1978 18:27 UTC| M 4.3 |33 km (20.5 mi) depth|12 km (8 mi) distance| USGS | Details
- 13 Apr 1978 13:59 UTC| M 4.5 |33 km (20.5 mi) depth|43 km (27 mi) distance| USGS | Details
- 12 Apr 1978 10:40 UTC| M 3.5 |33 km (20.5 mi) depth|79 km (49 mi) distance| USGS | Details
- 12 Apr 1978 09:33 UTC| M 5.1 |27 km (16.8 mi) depth|19 km (12 mi) distance| USGS | Details
- 12 Apr 1978 08:56 UTC| M 4.6 |19 km (11.8 mi) depth|11 km (7 mi) distance| USGS | Details
Show all
Earlier earthquakes in the same area
Click here to search our database for earlier earthquakes in the same area since 1900!