Strong mag. 6.6 earthquake - 5km NNE of Ocotillo Wells, CA (USA), on Tuesday, 9 April 1968 at 02:28 (GMT)

Strong mag. 6.6 earthquake  - 5km NNE of Ocotillo Wells, CA (USA), on Tuesday, 9 April 1968 at 02:28 (GMT)

Strong magnitude 6.6 earthquake at 10 km depth

Date & time: 9 Apr 1968 02:28:59 UTC###AGESTRINGCOPY###
Magnitude: 6.6
Depth: 10.0 km
Epicenter latitude / longitude: 33.17983°N / 116.103°W (--, United States)
Nearest volcano: Salton Buttes (45 km / 28 mi)
Nearby towns and cities:
61 km (38 mi) S of Indio (Riverside County, California) (pop: 87,500)
91 km (56 mi) NE of El Cajon (San Diego County, California) (pop: 103,700)
92 km (57 mi) E of Escondido (San Diego County, California) (pop: 151,500)
97 km (61 mi) NE of Rancho Penasquitos (pop: 60,000)
103 km (64 mi) SE of Temecula (Riverside County, California) (pop: 112,000)
106 km (66 mi) E of Vista (San Diego County, California) (pop: 100,900)
221 km (137 mi) SE of Los Angeles (California) (pop: 3,971,900)
376 km (233 mi) W of Phoenix (Arizona) (pop: 1,563,000)
Primary data source: USGS
Estimated released energy: 5 x 1014 joules (139 gigawatt hours, equivalent to 1.2 x 105 tons of TNT or 7.5 atomic bombs!) [learn more]
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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 6.610 km5km NNE of Ocotillo Wells, CA (USA)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 6.6 quake 5km NNE of Ocotillo Wells, CA (USA), 9 April 02:28 UTC

More info
Recorded aftershocks, latest first (209 quakes):
  • 05 Oct 1968 00:55 UTC
    | M 3.1 |
    6 km (3.7 mi) depth
    |
    120 km (75 mi) distance
    | USGS | Details
  • 01 Oct 1968 11:12 UTC
    | M 2.7 |
    6 km (3.7 mi) depth
    |
    80 km (50 mi) distance
    | USGS | Details
  • 29 Sep 1968 08:41 UTC
    | M 4.0 |
    6 km (3.7 mi) depth
    |
    99 km (62 mi) distance
    | USGS | Details
  • 29 Sep 1968 08:20 UTC
    | M 2.8 |
    6 km (3.7 mi) depth
    |
    119 km (74 mi) distance
    | USGS | Details
  • 29 Sep 1968 05:07 UTC
    | M 2.4 |
    6 km (3.7 mi) depth
    |
    103 km (64 mi) distance
    | USGS | Details
  • 29 Sep 1968 05:01 UTC
    | M 2.5 |
    0 km (0 mi) depth
    |
    103 km (64 mi) distance
    | USGS | Details
  • 29 Sep 1968 04:06 UTC
    | M 3.3 |
    6 km (3.7 mi) depth
    |
    11 km (7 mi) distance
    | USGS | Details
  • 23 Aug 1968 21:27 UTC
    | M 2.9 |
    6 km (3.7 mi) depth
    |
    17 km (11 mi) distance
    | USGS | Details
  • 22 Aug 1968 19:35 UTC
    | M 3.2 |
    6 km (3.7 mi) depth
    |
    39 km (24 mi) distance
    | USGS | Details
  • 20 Aug 1968 06:37 UTC
    | M 2.8 |
    6 km (3.7 mi) depth
    |
    74 km (46 mi) distance
    | USGS | Details
  • 20 Aug 1968 01:58 UTC
    | M 2.6 |
    6 km (3.7 mi) depth
    |
    81 km (51 mi) distance
    | USGS | Details
  • 20 Aug 1968 01:51 UTC
    | M 2.7 |
    6 km (3.7 mi) depth
    |
    84 km (52 mi) distance
    | USGS | Details
  • 20 Aug 1968 01:31 UTC
    | M 3.4 |
    6 km (3.7 mi) depth
    |
    76 km (47 mi) distance
    | USGS | Details
  • 14 Aug 1968 09:19 UTC
    | M 3.6 |
    6 km (3.7 mi) depth
    |
    18 km (11 mi) distance
    | USGS | Details
  • 12 Aug 1968 07:07 UTC
    | M 3.0 |
    6 km (3.7 mi) depth
    |
    25 km (15 mi) distance
    | USGS | Details
  • 11 Aug 1968 12:07 UTC
    | M 2.8 |
    6 km (3.7 mi) depth
    |
    28 km (17 mi) distance
    | USGS | Details
  • Show all

Earlier earthquakes in the same area

Strong mag. 6.6 earthquake - 5km NNE of Ocotillo Wells, CA (USA), on Tuesday, 9 April 1968 at 02:28 (GMT)
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