Major magnitude 6.7 earthquake - 6.9 mi north of Coalinga, Fresno County, California, USA, on Monday, May 2, 1983 at 23:42 (GMT)

Major magnitude 6.7 earthquake - 6.9 mi north of Coalinga, Fresno County, California, USA, on Monday, May 2, 1983 at 23:42 (GMT)

Major magnitude 6.7 earthquake at 10 km depth

1 Jan 00:00 UTC: First to report: USGS after 30 seconds.
Date & time: May 2, 1983 23:42:38 UTC
Magnitude: 6.7
Depth: 9.6 km
Epicenter latitude / longitude: 36.23167°N / 120.312°W (Fresno, California, United States)
Antipode: 36.232°S / 59.688°E
Nearest volcano: Golden Trout Creek (179 km / 111 mi)
Nearby towns and cities:
11 km (7 mi) NNE of Coalinga (Fresno County) (pop: 16,600) --> See nearby quakes!
48 km (30 mi) W of Lemoore (Kings County) (pop: 25,600) --> See nearby quakes!
61 km (38 mi) W of Hanford (pop: 55,700) --> See nearby quakes!
75 km (47 mi) SW of Fresno (pop: 520,100) --> See nearby quakes!
84 km (52 mi) SSW of Madera (pop: 64,200) --> See nearby quakes!
86 km (53 mi) SW of Clovis (pop: 104,200) --> See nearby quakes!
92 km (57 mi) W of Visalia (pop: 130,100) --> See nearby quakes!
187 km (116 mi) SE of San Jose (pop: 1,026,900) --> See nearby quakes!
254 km (158 mi) SE of San Francisco (pop: 864,800) --> See nearby quakes!
281 km (175 mi) SSE of Sacramento (pop: 490,700) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 7.1 x 1014 joules (197 gigawatt hours, equivalent to 1.7 x 105 tons of TNT or 10.6 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.
Mag.DepthLocationSource
6.79.6 kmCentral California (USA)USGS
Note: for quakes of 2012 and earlier, our database often contains only records from USGS.

User reports for this quake

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Aftershocks

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Recorded aftershocks, latest first (2874 quakes)

  • 29 Oct 1983 21:07 UTC
    | M 2.4 |
    6.3 km (3.9 mi) depth
    |
    6 km (4 mi) distance
    | USGS | Details
  • 28 Oct 1983 08:25 UTC
    | M 2.2 |
    2.2 km (1.4 mi) depth
    |
    101 km (62 mi) distance
    | USGS | Details
  • 27 Oct 1983 04:14 UTC
    | M 2.2 |
    9 km (5.6 mi) depth
    |
    108 km (67 mi) distance
    | USGS | Details
  • 27 Oct 1983 04:02 UTC
    | M 2.0 |
    7.2 km (4.5 mi) depth
    |
    115 km (71 mi) distance
    | USGS | Details
  • 27 Oct 1983 02:40 UTC
    | M 2.0 |
    3.3 km (2.1 mi) depth
    |
    71 km (44 mi) distance
    | USGS | Details
  • 26 Oct 1983 23:02 UTC
    | M 3.1 |
    7.3 km (4.5 mi) depth
    |
    10 km (6 mi) distance
    | USGS | Details
  • 26 Oct 1983 21:44 UTC
    | M 2.0 |
    4.8 km (3 mi) depth
    |
    36 km (22 mi) distance
    | USGS | Details
  • 26 Oct 1983 01:57 UTC
    | M 2.2 |
    7.3 km (4.5 mi) depth
    |
    106 km (66 mi) distance
    | USGS | Details
  • 25 Oct 1983 22:12 UTC
    | M 2.0 |
    9.9 km (6.2 mi) depth
    |
    5 km (3 mi) distance
    | USGS | Details
  • 25 Oct 1983 11:22 UTC
    | M 2.4 |
    6.1 km (3.8 mi) depth
    |
    3 km (2 mi) distance
    | USGS | Details
  • 25 Oct 1983 08:34 UTC
    | M 2.7 |
    4.8 km (3 mi) depth
    |
    77 km (48 mi) distance
    | USGS | Details
  • 24 Oct 1983 09:29 UTC
    | M 2.1 |
    8.1 km (5 mi) depth
    |
    8 km (5 mi) distance
    | USGS | Details
  • 24 Oct 1983 02:06 UTC
    | M 2.0 |
    7.7 km (4.8 mi) depth
    |
    5 km (3 mi) distance
    | USGS | Details
  • 23 Oct 1983 15:16 UTC
    | M 2.6 |
    7.1 km (4.4 mi) depth
    |
    2 km (1 mi) distance
    | USGS | Details
  • 21 Oct 1983 19:49 UTC
    | M 2.2 |
    5.4 km (3.4 mi) depth
    |
    129 km (80 mi) distance
    | USGS | Details
  • 21 Oct 1983 09:33 UTC
    | M 2.1 |
    7.4 km (4.6 mi) depth
    |
    1 km (1 mi) distance
    | USGS | Details
  • Show all