Strong mag. 6.2 earthquake - Samoa Islands Region on Tuesday, 9 December 1975 at 09:14 (GMT)

Strong mag. 6.2 earthquake  - Samoa Islands Region on Tuesday, 9 December 1975 at 09:14 (GMT)

Strong magnitude 6.2 earthquake at 33 km depth

Date & time: 9 Dec 1975 09:14:40 UTC###AGESTRINGCOPY###
Magnitude: 6.2
Depth: 33.0 km
Epicenter latitude / longitude: 14.789°S / 173.003°W (Samoa)
Nearest volcano: West Mata (87 km / 54 mi)
Nearby towns and cities:
137 km (85 mi) SSW of Vailoa (pop: 769)
147 km (91 mi) SSW of Asau (Vaisigano) (pop: 6,640)
149 km (93 mi) SW of Mulifanua (pop: 4,510)
162 km (101 mi) SSW of Safotu (Gaga'ifomauga) (pop: 1,210)
166 km (103 mi) SW of Afega (Malie, Tuamasaga) (pop: 1,900)
170 km (106 mi) SW of Apia (Tuamasaga) (pop: 40,400)
182 km (113 mi) SW of Lufilufi (Lufi-lufi) (pop: 1,070)
744 km (462 mi) NNE of Nuku‘alofa (Nuku'alofa, Tongatapu, Tonga) (pop: 22,400)
Primary data source: USGS
Estimated released energy: 1.3 x 1014 joules (35 gigawatt hours, equivalent to 30089 tons of TNT or 1.9 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.
MagnitudeDepthLocationSource
M 6.233 kmSamoa Islands regionUSGS
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 6.2 quake Samoa Islands Region 9 December 09:14 UTC

More info
Recorded aftershocks, latest first (7 quakes):
  • 07 May 1976 23:04 UTC
    | M 4.9 |
    21 km (13 mi) depth
    |
    67 km (42 mi) distance
    | USGS | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    18205 km (11312 mi) distance
    | | Details
  • 05 Apr 1976 09:48 UTC
    | M 5.5 |
    33 km (20.5 mi) depth
    |
    59 km (37 mi) distance
    | USGS | Details
  • 16 Jan 1976 07:10 UTC
    | M 5.0 |
    33 km (20.5 mi) depth
    |
    22 km (13 mi) distance
    | USGS | Details
  • 14 Jan 1976 15:56 UTC
    | M 5.7 |
    33 km (20.5 mi) depth
    |
    73 km (46 mi) distance
    | USGS | Details
  • 26 Dec 1975 22:18 UTC
    | M 4.2 |
    33 km (20.5 mi) depth
    |
    38 km (24 mi) distance
    | USGS | Details
  • 17 Dec 1975 11:52 UTC
    | M 4.9 |
    40 km (24.9 mi) depth
    |
    71 km (44 mi) distance
    | USGS | Details

Earlier earthquakes in the same area

Strong mag. 6.2 earthquake - Samoa Islands Region on Tuesday, 9 December 1975 at 09:14 (GMT)
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