Terremoto muy fuerte magnitud 6.3 - South Pacific Ocean, 155 km ENE of Nuku\'alofa, Tongatapu, lunes, 17 oct. 1983

Terremoto muy fuerte magnitud 6.3 - South Pacific Ocean, 155 km ENE of Nuku\'alofa, Tongatapu, lunes, 17 oct. 1983

Terremoto muy fuerte magnitud 6.3 at 30 km depth

Fecha & hora: 17 Oct 1983 13:25:21 UTC
Magnitud: 6.3
Profundidad: 30.4 km
Epicentro latitud / longitud: 20.794°S / 173.758°W (Océano Pacífico Sur, Tonga)
Volcán mas cercano: Feinga Seamount (163 km / 101 mi)
Nearby towns and cities:
125 km al SSE de Pangai (pop: 1,740) --> ¡Vea sismos cercanos!
137 km al ENE de ‘Ohonua (Ohonua) (pop: 1,240) --> ¡Vea sismos cercanos!
141 km al ENE de Kolonga (pop: 1,100) --> ¡Vea sismos cercanos!
155 km al ENE de Nuku'alofa (pop: 22,400) --> ¡Vea sismos cercanos!
155 km al ENE de Nuku‘alofa (pop: 22,400) --> ¡Vea sismos cercanos!
240 km al S de Neiafu (pop: 4,320) --> ¡Vea sismos cercanos!
446 km al OSO de Alofi (Niue) (pop: 624) --> ¡Vea sismos cercanos!
449 km al OSO de Hakupu (Niue) (pop: 221) --> ¡Vea sismos cercanos!
459 km al OSO de Mutalau (Niue) (pop: 133) --> ¡Vea sismos cercanos!
Fuente primaria de datos: USGS (United States Geological Survey)
Energía liberada estimada: 1.8 x 1014 joules (49.4 gigawatt hours, equivalent to 42502 tons of TNT or 2.7 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 6.330 kmTongaUSGS
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

More info
Recorded aftershocks, latest first (7 quakes):
  • 03 Feb 1984 23:34 UTC
    | M 4.9 |
    33 km (20.5 mi) depth
    |
    64 km (40 mi) distance
    | USGS | Details
  • 22 Jan 1984 13:51 UTC
    | M 5.5 |
    50.9 km (31.6 mi) depth
    |
    80 km (50 mi) distance
    | USGS | Details
  • 28 Dec 1983 11:21 UTC
    | M 5.3 |
    49.6 km (30.8 mi) depth
    |
    22 km (14 mi) distance
    | USGS | Details
  • 04 Dec 1983 19:30 UTC
    | M 5.4 |
    33 km (20.5 mi) depth
    |
    18 km (11 mi) distance
    | USGS | Details
  • 03 Dec 1983 03:22 UTC
    | M 5.2 |
    33 km (20.5 mi) depth
    |
    42 km (26 mi) distance
    | USGS | Details
  • 02 Dec 1983 14:50 UTC
    | M 4.7 |
    33 km (20.5 mi) depth
    |
    46 km (29 mi) distance
    | USGS | Details
  • 20 Oct 1983 02:05 UTC
    | M 5.3 |
    69.7 km (43.3 mi) depth
    |
    24 km (15 mi) distance
    | USGS | Details

Earlier earthquakes in the same area

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