Terremoto leve mag. 4.0 - North Pacific Ocean, 85 miles SSE of Sand Point, Aleutians East County, Alaska, USA, martes, 20 oct. 2020 -
Este terremoto probablemente fue una réplica del terremoto M 7.6 terremoto: Golfo de Alaska, 97 km al sureste de Sand Point, Borough de Aleutianas Orientales County, Alaska, Estados Unidos Mon, 19 Oct 2020 20:54que había ocurrido 4 horas antes.
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Terremoto leve magnitud 4.0 at 36 km depth
20 Oct 01:36 UTC: Primero en informar: EMSC después de 15 minutos.
Fecha & hora: 20 Oct 2020 01:21:29 UTC -
Hora local al epicentro: 19 Oct 2:21 pm (GMT -11)
Magnitud: 4
Profundidad: 36.0 km
Epicentro latitud / longitud: 54.25°N / 159.49°W

Volcán mas cercano: Stepovak Bay 2 (188 km / 117 mi)
Nearby towns and cities:
137 km al SSE de Sand Point (pop: 1,060) --> ¡Vea sismos cercanos!
186 km al S de Perryville (pop: 113) --> ¡Vea sismos cercanos!
203 km al ESE de King Cove (pop: 1,010) --> ¡Vea sismos cercanos!
228 km al S de Chignik Lake (pop: 73) --> ¡Vea sismos cercanos!
232 km al ESE de Cold Bay (pop: 123) --> ¡Vea sismos cercanos!
237 km al SSO de Chignik Lagoon (pop: 78) --> ¡Vea sismos cercanos!
409 km al E de Akutan (pop: 1,040) --> ¡Vea sismos cercanos!
462 km al E de Unalaska (pop: 4,490) --> ¡Vea sismos cercanos!
580 km al SO de Kodiak Station (pop: 1,300) --> ¡Vea sismos cercanos!
590 km al SO de Kodiak (pop: 6,250) --> ¡Vea sismos cercanos!
Weather at epicenter at time of quake:
Clear Sky
8.2°C (47 F), humidity: 75%, wind: 6 m/s (12 kts) from NW
Fuente primaria de datos: EMSC (European-Mediterranean Seismological Centre)Clear Sky

Energía liberada estimada: 6.3 x 1010 joules (17.5 megawatt hours, equivalent to 15.1 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.
Magnitud | Profundidad | Ubicación | Fuente |
M 4.0 | 36 km | South Of Alaska, USA | EMSC |
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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There are no user reports for this quake yet. If you felt it Earlier earthquakes in the same area since 1900
- Date / time UTC| Mag |Profundidad|Age|Distancia| Detalles
- 01 Apr 1946 12:29| 8.6 |15km / 9.3mi|hace 75 años|235km / 146mi| North Pacific Ocean, 154 mi E of Unalaska, Aleutians West (CA) County, Alaska, USA
- 10 Nov 1938 20:18| 8.2 |35km / 22mi|hace 82 años|133km / 83mi| Gulf of Alaska, 47 mi NE of Simeonof Island, Aleutians East County, Alaska, USA
- 22 Jul 2020 06:12| 7.8 |28km / 17mi|hace 32 semanas|107km / 66mi| Gulf of Alaska, 31 mi E of Simeonof Island, Aleutians East County, Alaska, USA
- 19 Oct 2020 20:54| 7.6 |35km / 22mi|hace 19 semanas|42km / 26mi| Gulf of Alaska, 60 mi SE of Санд-Пойнт, Aleutians East County, Alaska, USA
- 31 May 1917 08:47| 7.4 |35km / 22mi|hace 104 años|76km / 47mi| Gulf of Alaska, 5.3 mi SW of Little Koniuji Island, Aleutians East County, Alaska, USA
- 04 Sep 1989 13:14| 7.1 |11.4km / 7.1mi|hace 32 años|223km / 138mi| Gulf of Alaska, USA
- 14 May 1948 22:31| 7.1 |25km / 16mi|hace 73 años|117km / 73mi| Gulf of Alaska, 55 mi SE of King Cove, Aleutians East County, Alaska, USA
- 30 May 1991 13:17| 7.0 |28km / 18mi|hace 30 años|141km / 88mi| Gulf of Alaska, 31 mi E of Cherni Island, Aleutians East County, Alaska, USA
- 04 May 1923 16:26| 7.0 |25km / 16mi|hace 98 años|244km / 152mi| Gulf of Alaska, 11 mi S of South Island, Kodiak Island County, Alaska, USA
- 13 May 1993 11:59| 6.9 |32km / 20mi|hace 28 años|120km / 75mi| Gulf of Alaska, 11 mi S of Sand Point, Aleutians East County, Alaska, USA
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