Major magnitude 7.1 earthquake - 59 mi east of Victorville, San Bernardino County, California, USA, on Saturday, October 16, 1999 at 09:46 (GMT)

Major magnitude 7.1 earthquake - 59 mi east of Victorville, San Bernardino County, California, USA, on Saturday, October 16, 1999 at 09:46 (GMT)

Major magnitude 7.1 earthquake at 14 km depth

1 Jan 00:00 UTC: First to report: USGS after 30 seconds.
Date & time: Oct 16, 1999 09:46:44 UTC
Magnitude: 7.1
Depth: 13.7 km
Epicenter latitude / longitude: 34.60333°N / 116.265°W (San Bernardino, California, United States)
Antipode: 34.603°S / 63.735°E
Nearest volcano: Lavic Lake (37 km / 23 mi)
Nearby towns and cities:
52 km (33 mi) N of Joshua Tree (pop: 7,410) --> See nearby quakes!
56 km (34 mi) NNW of Twentynine Palms (San Bernardino County) (pop: 26,000) --> See nearby quakes!
57 km (35 mi) NNE of Yucca Valley (pop: 21,600) --> See nearby quakes!
85 km (53 mi) E of Apple Valley (pop: 72,200) --> See nearby quakes!
93 km (58 mi) N of Cathedral City (pop: 53,800) --> See nearby quakes!
94 km (59 mi) E of Victorville (pop: 122,200) --> See nearby quakes!
97 km (60 mi) ENE of Hesperia (pop: 93,300) --> See nearby quakes!
98 km (61 mi) N of Indio (pop: 87,500) --> See nearby quakes!
176 km (109 mi) NE of Santa Ana (pop: 335,400) --> See nearby quakes!
643 km (400 mi) SE of Sacramento (pop: 490,700) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 2.8 x 1015 joules (783 gigawatt hours, equivalent to 6.7 x 105 tons of TNT or 42.1 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
7.114 kmHector Mine, CA Earthquake (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.
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Aftershocks

More info

Recorded aftershocks, latest first (8774 quakes)

  • 17 Oct 2001 06:21 UTC
    | M 2.3 |
    2.9 km (1.8 mi) depth
    |
    5 km (3 mi) distance
    | USGS | Details
  • 17 Oct 2001 06:19 UTC
    | M 2.1 |
    2.7 km (1.7 mi) depth
    |
    5 km (3 mi) distance
    | USGS | Details
  • 17 Oct 2001 05:53 UTC
    | M 3.5 |
    1.3 km (0.8 mi) depth
    |
    5 km (3 mi) distance
    | USGS | Details
  • 16 Oct 2001 19:39 UTC
    | M 2.2 |
    -0.2 km (-0.1 mi) depth
    |
    179 km (112 mi) distance
    | USGS | Details
  • 16 Oct 2001 14:23 UTC
    | M 2.0 |
    5.8 km (3.6 mi) depth
    |
    31 km (19 mi) distance
    | USGS | Details
  • 16 Oct 2001 04:51 UTC
    | M 2.2 |
    2.6 km (1.6 mi) depth
    |
    26 km (16 mi) distance
    | USGS | Details
  • 15 Oct 2001 20:10 UTC
    | M 2.0 |
    5.1 km (3.2 mi) depth
    |
    150 km (93 mi) distance
    | USGS | Details
  • 13 Oct 2001 22:05 UTC
    | M 2.3 |
    5.7 km (3.5 mi) depth
    |
    25 km (16 mi) distance
    | USGS | Details
  • 12 Oct 2001 22:27 UTC
    | M 2.3 |
    14.3 km (8.9 mi) depth
    |
    112 km (70 mi) distance
    | USGS | Details
  • 12 Oct 2001 18:52 UTC
    | M 2.1 |
    -0.7 km (-0.4 mi) depth
    |
    179 km (111 mi) distance
    | USGS | Details
  • 12 Oct 2001 17:36 UTC
    | M 2.1 |
    12.7 km (7.9 mi) depth
    |
    124 km (77 mi) distance
    | USGS | Details
  • 12 Oct 2001 16:08 UTC
    | M 3.1 |
    11.1 km (6.9 mi) depth
    |
    125 km (78 mi) distance
    | USGS | Details
  • 11 Oct 2001 22:43 UTC
    | M 2.2 |
    -1.1 km (-0.7 mi) depth
    |
    152 km (94 mi) distance
    | USGS | Details
  • 11 Oct 2001 19:01 UTC
    | M 2.0 |
    -0.8 km (-0.5 mi) depth
    |
    213 km (132 mi) distance
    | USGS | Details
  • 11 Oct 2001 18:56 UTC
    | M 3.1 |
    1.9 km (1.2 mi) depth
    |
    25 km (16 mi) distance
    | USGS | Details
  • 11 Oct 2001 18:16 UTC
    | M 2.0 |
    -1.1 km (-0.7 mi) depth
    |
    25 km (16 mi) distance
    | USGS | Details
  • Show all