Terremoto molto forte magnitudine 6.9 - Halmahera Sea, 17 km a est da Pulau Katinai Besar , Maluku Utara, Indonesia, lunedì, 21 gennaio 1985

Terremoto molto forte magnitudine 6.9 - Halmahera Sea, 17 km a est da Pulau Katinai Besar , Maluku Utara, Indonesia, lunedì, 21 gennaio 1985

Terremoto molto forte magnitudine 6.9 at 33 km depth

Data & ora: 21 Jan 1985 00:55:22 UTC
Magnitudine: 6.9
Profondità: 33.0 km
Epicentro latitudine / longitudine: 0.953°S / 128.507°E (Halmahera Sea, Indonesia)
Vulcano più vicino: Bibinoi (90 km / 56 mi)
Nearby towns and cities:
216 km SSE da Sofifi (Kota Tidore Kepulauan) (pop: 36,200) --> Vedi sismi vicini
231 km SSE da Ternate (pop: 101,700) --> Vedi sismi vicini
269 km N da Amahai (pop: 47,700) --> Vedi sismi vicini
303 km S da Tobelo (Kabupaten Halmahera Utara) (pop: 10,000) --> Vedi sismi vicini
306 km O da Sorong (pop: 125,500) --> Vedi sismi vicini
307 km N da Ambon City (pop: 355,600) --> Vedi sismi vicini
456 km SE da Bitung (pop: 137,400) --> Vedi sismi vicini
472 km ESE da Tondano (Kabupaten Minahasa) (pop: 33,300) --> Vedi sismi vicini
483 km ESE da Tomohon (pop: 27,600) --> Vedi sismi vicini
489 km ESE da Manado (pop: 451,900) --> Vedi sismi vicini
Fonte dati primaria: USGS (United States Geological Survey)
Stima dell'energia sismica liberata: 1.4 x 1015 joules (392 gigawatt hours, equivalent to 3.4 x 105 tons of TNT or 21.1 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 6.933 kmHalmahera, IndonesiaUSGS
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):
  • 05 Jul 1985 07:17 UTC
    | M 4.8 |
    33 km (20.5 mi) depth
    |
    23 km (14 mi) distance
    | USGS | Details
  • 24 Feb 1985 19:17 UTC
    | M 5.1 |
    33 km (20.5 mi) depth
    |
    167 km (104 mi) distance
    | USGS | Details
  • 25 Jan 1985 12:38 UTC
    | M 5.0 |
    63.7 km (39.6 mi) depth
    |
    11 km (7 mi) distance
    | USGS | Details
  • 21 Jan 1985 19:29 UTC
    | M 4.9 |
    33 km (20.5 mi) depth
    |
    4 km (3 mi) distance
    | USGS | Details
  • 21 Jan 1985 04:44 UTC
    | M 5.3 |
    33 km (20.5 mi) depth
    |
    86 km (53 mi) distance
    | USGS | Details
  • 21 Jan 1985 04:41 UTC
    | M 5.4 |
    33 km (20.5 mi) depth
    |
    21 km (13 mi) distance
    | USGS | Details
  • 21 Jan 1985 04:25 UTC
    | M 4.1 |
    33 km (20.5 mi) depth
    |
    57 km (35 mi) distance
    | USGS | Details

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Earlier earthquakes in the same area

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