Forte terremoto magnitudine 6.9 - Kepulauan Alor, Indonesia, giovedì, 04 luglio 1991

Forte terremoto magnitudine 6.9 - Kepulauan Alor, Indonesia, giovedì, 04 luglio 1991

Strong magnitude 6.9 earthquake at 29 km depth

Data & ora: 4 Jul 1991 11:43:10 UTC###AGESTRINGCOPY###
Magnitudine: 6.9
Profondità: 28.8 km
Epicentro latitudine / longitudine: 8.099°S / 124.681°E (Indonesia)
Vulcano più vicino: Sirung (76 km / 47 mi)
Nearby towns and cities:
81 km NW da Maubara (Timor Est) (pop: 16,300)
91 km NW da Liquica (Timor Est) (pop: 19,000)
111 km WNW da Dili (Díli, Timor Est) (pop: 150,000)
114 km NNW da Atambua (Kabupaten Belu, Nusa Tenggara Timur) (pop: 35,800)
152 km N da Kefamenanu (Kabupaten Timor Tengah Utara, Nusa Tenggara Timur) (pop: 29,500)
259 km NNE da Kupang (Nusa Tenggara Timur) (pop: 282,400)
666 km ESE da Makassar (Sulawesi Selatan) (pop: 1,321,700)
1979 km E da Jakarta (pop: 8,540,100)
Fonte dati primaria: USGS
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!) [saperne di più]
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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 6.929 kmKepulauan Alor, 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.
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 6.9 quake Kepulauan Alor, Indonesia, 4 July 11:43 UTC

More info
Recorded aftershocks, latest first (9 quakes):
  • 28 Dec 1991 05:35 UTC
    | M 5.3 |
    36.4 km (22.6 mi) depth
    |
    100 km (62 mi) distance
    | USGS | Details
  • 26 Dec 1991 12:10 UTC
    | M 5.0 |
    36.3 km (22.6 mi) depth
    |
    158 km (98 mi) distance
    | USGS | Details
  • 14 Nov 1991 13:52 UTC
    | M 5.0 |
    59.6 km (37 mi) depth
    |
    47 km (29 mi) distance
    | USGS | Details
  • 26 Sep 1991 05:33 UTC
    | M 5.0 |
    556.3 km (345.7 mi) depth
    |
    149 km (92 mi) distance
    | USGS | Details
  • 07 Sep 1991 04:14 UTC
    | M 5.1 |
    604.4 km (375.6 mi) depth
    |
    140 km (87 mi) distance
    | USGS | Details
  • 09 Jul 1991 15:49 UTC
    | M 5.2 |
    50.1 km (31.1 mi) depth
    |
    47 km (29 mi) distance
    | USGS | Details
  • 05 Jul 1991 17:07 UTC
    | M 5.3 |
    29.6 km (18.4 mi) depth
    |
    17 km (10 mi) distance
    | USGS | Details
  • 04 Jul 1991 13:56 UTC
    | M 5.3 |
    19.3 km (12 mi) depth
    |
    5 km (3 mi) distance
    | USGS | Details
  • 04 Jul 1991 12:30 UTC
    | M 5.3 |
    67.9 km (42.2 mi) depth
    |
    8 km (5 mi) distance
    | USGS | Details

Earlier earthquakes in the same area

Strong mag. 6.9 earthquake - Kepulauan Alor, Indonesia, on Thursday, 4 July 1991 at 11:43 (GMT)
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