Forte terremoto magnitudine 6.5 - Tonga, domenica, 15 maggio 1983

Forte terremoto magnitudine 6.5 - Tonga, domenica, 15 maggio 1983

Strong magnitude 6.5 earthquake at 33 km depth

Data & ora: 15 May 1983 00:24:00 UTC
Magnitudine: 6.5
Profondità: 33.0 km
Epicentro latitudine / longitudine: 18.907°S / 175.641°W (Tonga)
Vulcano più vicino: Metis Shoal (87 km / 54 mi)
Nearby towns and cities:
169 km NO da Pangai (pop: 1,740) --> Vedi sismi vicini
177 km O da Neiafu (pop: 4,320) --> Vedi sismi vicini
253 km N da Nuku'alofa (pop: 22,400) --> Vedi sismi vicini
253 km N da Nuku‘alofa (pop: 22,400) --> Vedi sismi vicini
255 km NNO da Kolonga (pop: 1,100) --> Vedi sismi vicini
279 km NNO da ‘Ohonua (Ohonua) (pop: 1,240) --> Vedi sismi vicini
382 km SSO da Hihifo (pop: 815) --> Vedi sismi vicini
Fonte dati primaria: USGS (United States Geological Survey)
Stima dell'energia sismica liberata: 3.5 x 1014 joules (98.6 gigawatt hours, equivalent to 84802 tons of TNT or 5.3 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.
MagnitudineProfonditàUbicazioneFonte
M 6.533 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.
There are no user reports for this quake yet. If you felt it be the first to report it!
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Aftershocks of the 6.5 quake Tonga 15 May 1983 00:24 GMT

More info
Recorded aftershocks, latest first (4 quakes):
  • 26 Oct 1983 02:44 UTC
    | M 4.9 |
    277.1 km (172.2 mi) depth
    |
    45 km (28 mi) distance
    | USGS | Details
  • 24 Jul 1983 17:50 UTC
    | M 4.7 |
    249.1 km (154.8 mi) depth
    |
    65 km (40 mi) distance
    | USGS | Details
  • 14 Jul 1983 09:48 UTC
    | M 5.1 |
    264 km (164 mi) depth
    |
    15 km (10 mi) distance
    | USGS | Details
  • 15 May 1983 02:59 UTC
    | M 4.8 |
    33 km (20.5 mi) depth
    |
    32 km (20 mi) distance
    | USGS | Details

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Earlier earthquakes in the same area

Strong mag. 6.5 earthquake - Tonga on Sunday, 15 May 1983 at 00:24 (GMT)
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