Strong mag. 6.2 earthquake - Tonga (Samoa) on Friday, 3 March 1978 at 10:48 (GMT)

Strong mag. 6.2 earthquake - Tonga (Samoa) on Friday, 3 March 1978 at 10:48 (GMT)

Strong magnitude 6.2 earthquake at 33 km depth

Date & time: 3 Mar 1978 10:48:11 UTC
Magnitude: 6.2
Profondeur: 33.0 km
Epicenter latitude / longitude: 15.288°S / 173.517°W (Samoa)
Volcan le plus près: West Mata (33 km / 21 mi)
Nearby towns and cities:
80 km NNE de Hihifo (Tonga) (pop: 815) --> Voir les séismes à proximité!
215 km SO de Vailoa (pop: 769) --> Voir les séismes à proximité!
218 km SSO de Asau (pop: 6,640) --> Voir les séismes à proximité!
227 km SO de Mulifanua (pop: 4,510) --> Voir les séismes à proximité!
236 km SO de Fasito‘outa (pop: 2,100) --> Voir les séismes à proximité!
237 km SSO de Safotu (pop: 1,210) --> Voir les séismes à proximité!
248 km SO de Apia (pop: 40,400) --> Voir les séismes à proximité!
260 km SO de Lufilufi (pop: 1,070) --> Voir les séismes à proximité!
319 km OSO de Tāfuna (Tualauta, Samoa américaines) (pop: 11,000) --> Voir les séismes à proximité!
323 km OSO de Pago Pago (Ma'Oputasi, Samoa américaines) (pop: 11,500) --> Voir les séismes à proximité!
Primary data source: USGS (United States Geological Survey)
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.
MagnitudeProfondeurLocationSource
M 6.233 kmTonga (Samoa)USGS
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 Tonga (Samoa) 3 March 1978 10:48 GMT

More info
Recorded aftershocks, latest first (14 quakes):
  • 04 Aug 1978 01:17 UTC
    | M 5.3 |
    33 km (20.5 mi) depth
    |
    66 km (41 mi) distance
    | USGS | Details
  • 01 Aug 1978 20:29 UTC
    | M 5.5 |
    33 km (20.5 mi) depth
    |
    20 km (13 mi) distance
    | USGS | Details
  • 27 Jul 1978 18:25 UTC
    | M 5.8 |
    33 km (20.5 mi) depth
    |
    61 km (38 mi) distance
    | USGS | Details
  • 27 Jul 1978 13:41 UTC
    | M 5.4 |
    33 km (20.5 mi) depth
    |
    45 km (28 mi) distance
    | USGS | Details
  • 21 Jul 1978 07:22 UTC
    | M 4.9 |
    33 km (20.5 mi) depth
    |
    37 km (23 mi) distance
    | USGS | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    18177 km (11295 mi) distance
    | | Details
  • 11 Jun 1978 14:27 UTC
    | M 6.2 |
    33 km (20.5 mi) depth
    |
    5 km (3 mi) distance
    | USGS | Strong mag. 6.2 earthquake - Tonga (Samoa) on Sunday, 11 June 1978 at 14:27 (GMT)
  • 30 May 1978 18:57 UTC
    | M 5.1 |
    38 km (23.6 mi) depth
    |
    66 km (41 mi) distance
    | USGS | Details
  • 13 May 1978 16:41 UTC
    | M 5.4 |
    33 km (20.5 mi) depth
    |
    15 km (9 mi) distance
    | USGS | Details
  • 11 May 1978 17:53 UTC
    | M 4.4 |
    333 km (206.9 mi) depth
    |
    55 km (34 mi) distance
    | USGS | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    18177 km (11295 mi) distance
    | | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    18177 km (11295 mi) distance
    | | Details
  • 25 Apr 1978 17:01 UTC
    | M 4.4 |
    166 km (103.1 mi) depth
    |
    42 km (26 mi) distance
    | USGS | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    18177 km (11295 mi) distance
    | | Details

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Earlier earthquakes in the same area

Strong mag. 6.2 earthquake - Tonga (Samoa) on Friday, 3 March 1978 at 10:48 (GMT)
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