Fuerte terremoto magnitud 6.4 - Tonga (Samoa), sábado, 08 ene. 1983

Fuerte terremoto magnitud 6.4 - Tonga (Samoa), sábado, 08 ene. 1983

Strong magnitude 6.4 earthquake at 33 km depth

Fecha & hora: 8 Jan 1983 11:21:29 UTC
Magnitud: 6.4
Profundidad: 33.0 km
Epicentro latitud / longitud: 15.394°S / 173.33°W (Samoa)
Volcán mas cercano: Curacoa (44 km / 27 mi)
Nearby towns and cities:
80 km al NE de Hihifo (Tonga) (pop: 815) --> ¡Vea sismos cercanos!
213 km al SSO de Vailoa (pop: 769) --> ¡Vea sismos cercanos!
221 km al SSO de Asau (pop: 6,640) --> ¡Vea sismos cercanos!
223 km al SO de Mulifanua (pop: 4,510) --> ¡Vea sismos cercanos!
231 km al SO de Fasito‘outa (pop: 2,100) --> ¡Vea sismos cercanos!
238 km al SSO de Safotu (pop: 1,210) --> ¡Vea sismos cercanos!
242 km al SO de Apia (pop: 40,400) --> ¡Vea sismos cercanos!
252 km al SO de Lufilufi (pop: 1,070) --> ¡Vea sismos cercanos!
304 km al OSO de Tāfuna (Tualauta, Samoa Americana) (pop: 11,000) --> ¡Vea sismos cercanos!
309 km al OSO de Pago Pago (Ma'Oputasi, Samoa Americana) (pop: 11,500) --> ¡Vea sismos cercanos!
Fuente primaria de datos: USGS (United States Geological Survey)
Energía liberada estimada: 2.5 x 1014 joules (69.8 gigawatt hours, equivalent to 60036 tons of TNT or 3.8 atomic bombs!) More info
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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.
MagnitudProfundidadUbicaciónFuente
M 6.433 kmTonga (Samoa)USGS
Note: for quakes of 2012 and earlier, our database often contains only records from 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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Aftershocks of the M 6.4 terremoto: Tonga (Samoa) Sat, 8 Jan 1983 11:21

More info
Recorded aftershocks, latest first (16 quakes):
  • 29 Jun 1983 03:29 UTC
    | M 5.2 |
    33 km (20.5 mi) depth
    |
    47 km (29 mi) distance
    | USGS | Details
  • 27 Jun 1983 02:16 UTC
    | M 4.3 |
    195.6 km (121.5 mi) depth
    |
    63 km (39 mi) distance
    | USGS | Details
  • 21 Jun 1983 11:36 UTC
    | M 5.1 |
    33 km (20.5 mi) depth
    |
    10 km (6 mi) distance
    | USGS | Details
  • 18 Jun 1983 23:02 UTC
    | M 4.8 |
    33 km (20.5 mi) depth
    |
    27 km (17 mi) distance
    | USGS | Details
  • 15 Jun 1983 06:07 UTC
    | M 5.5 |
    33 km (20.5 mi) depth
    |
    37 km (23 mi) distance
    | USGS | Details
  • 05 Jun 1983 16:26 UTC
    | M 5.3 |
    33 km (20.5 mi) depth
    |
    77 km (48 mi) distance
    | USGS | Details
  • 05 Jun 1983 13:23 UTC
    | M 5.1 |
    33 km (20.5 mi) depth
    |
    86 km (53 mi) distance
    | USGS | Details
  • 01 Jun 1983 11:54 UTC
    | M 4.6 |
    33 km (20.5 mi) depth
    |
    95 km (59 mi) distance
    | USGS | Details
  • 01 Jun 1983 10:58 UTC
    | M 6.1 |
    33 km (20.5 mi) depth
    |
    65 km (40 mi) distance
    | USGS | Fuerte terremoto magnitud 6.1 - Samoa Islands Region, miércoles, 01 jun. 1983
  • 28 Mar 1983 09:00 UTC
    | M 4.9 |
    19 km (11.8 mi) depth
    |
    51 km (32 mi) distance
    | USGS | Details
  • 15 Mar 1983 07:04 UTC
    | M 4.7 |
    33 km (20.5 mi) depth
    |
    30 km (19 mi) distance
    | USGS | Details
  • 14 Mar 1983 16:37 UTC
    | M 4.6 |
    33 km (20.5 mi) depth
    |
    48 km (30 mi) distance
    | USGS | Details
  • 26 Jan 1983 18:55 UTC
    | M 5.4 |
    41 km (25.5 mi) depth
    |
    17 km (11 mi) distance
    | USGS | Details
  • 24 Jan 1983 04:28 UTC
    | M 5.3 |
    33 km (20.5 mi) depth
    |
    50 km (31 mi) distance
    | USGS | Details
  • 19 Jan 1983 13:58 UTC
    | M 4.7 |
    33 km (20.5 mi) depth
    |
    70 km (44 mi) distance
    | USGS | Details
  • 12 Jan 1983 09:58 UTC
    | M 4.9 |
    33 km (20.5 mi) depth
    |
    12 km (7 mi) distance
    | USGS | Details

Earlier earthquakes in the same area

Fuerte terremoto magnitud 6.4 - Tonga (Samoa), sábado, 08 ene. 1983
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