Strong mag. 6.2 earthquake - Offshore Valparaiso, Chile, on Monday, 4 March 1985 at 19:03 (GMT)

Strong mag. 6.2 earthquake - Offshore Valparaiso, Chile, on Monday, 4 March 1985 at 19:03 (GMT)

Strong magnitude 6.2 earthquake at 33 km depth

Date & time: 4 Mar 1985 19:03:06 UTC
Magnitude: 6.2
Depth: 33.0 km
Epicenter latitude / longitude: 32.878°S / 71.818°W (Chile)
Nearest volcano: Tupungatito (197 km / 122 mi)
Nearby towns and cities:
25 km (15 mi) NW of Valparaiso (pop: 282,400) --> See nearby quakes!
30 km (18 mi) WNW of Viña del Mar (pop: 294,600) --> See nearby quakes!
40 km (25 mi) WNW of Quilpué (pop: 130,300) --> See nearby quakes!
45 km (28 mi) WNW of Villa Alemana (pop: 97,300) --> See nearby quakes!
53 km (33 mi) W of Quillota (pop: 67,800) --> See nearby quakes!
54 km (33 mi) WNW of Limache (Marga Marga) (pop: 35,900) --> See nearby quakes!
57 km (36 mi) W of Hacienda La Calera (pop: 49,100) --> See nearby quakes!
82 km (51 mi) NNW of San Antonio (pop: 85,700) --> See nearby quakes!
127 km (79 mi) WNW of Santiago (pop: 4,837,300) --> See nearby quakes!
141 km (88 mi) NW of Puente Alto (pop: 510,400) --> See nearby quakes!
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.
MagnitudeDepthLocationSource
M 6.233 kmoffshore Valparaiso, ChileUSGS
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 Offshore Valparaiso, Chile, 4 March 1985 19:03 GMT

More info
Recorded aftershocks, latest first (110 quakes):
  • 26 Aug 1985 01:18 UTC
    | M 4.2 |
    33 km (20.5 mi) depth
    |
    68 km (42 mi) distance
    | USGS | Details
  • 25 Aug 1985 03:22 UTC
    | M 4.6 |
    33 km (20.5 mi) depth
    |
    69 km (43 mi) distance
    | USGS | Details
  • 14 Aug 1985 01:28 UTC
    | M 4.4 |
    33 km (20.5 mi) depth
    |
    62 km (39 mi) distance
    | USGS | Details
  • 08 Aug 1985 06:06 UTC
    | M 4.4 |
    33 km (20.5 mi) depth
    |
    35 km (22 mi) distance
    | USGS | Details
  • 07 Aug 1985 11:10 UTC
    | M 4.5 |
    33 km (20.5 mi) depth
    |
    31 km (19 mi) distance
    | USGS | Details
  • 17 Jul 1985 23:04 UTC
    | M 5.1 |
    33 km (20.5 mi) depth
    |
    24 km (15 mi) distance
    | USGS | Details
  • 17 Jul 1985 13:53 UTC
    | M 5.5 |
    33 km (20.5 mi) depth
    |
    16 km (10 mi) distance
    | USGS | Details
  • 17 Jul 1985 13:37 UTC
    | M 4.5 |
    33 km (20.5 mi) depth
    |
    13 km (8 mi) distance
    | USGS | Details
  • 14 Jul 1985 18:20 UTC
    | M 4.9 |
    33 km (20.5 mi) depth
    |
    73 km (45 mi) distance
    | USGS | Details
  • 11 Jul 1985 21:02 UTC
    | M 3.5 |
    33 km (20.5 mi) depth
    |
    59 km (37 mi) distance
    | USGS | Details
  • 11 Jul 1985 20:31 UTC
    | M 5.5 |
    28.5 km (17.7 mi) depth
    |
    30 km (19 mi) distance
    | USGS | Details
  • 09 Jul 1985 07:36 UTC
    | M 4.8 |
    44.7 km (27.8 mi) depth
    |
    15 km (9 mi) distance
    | USGS | Details
  • 09 Jul 1985 07:33 UTC
    | M 4.4 |
    33 km (20.5 mi) depth
    |
    36 km (22 mi) distance
    | USGS | Details
  • 07 Jul 1985 20:32 UTC
    | M 4.5 |
    33 km (20.5 mi) depth
    |
    26 km (16 mi) distance
    | USGS | Details
  • 07 Jul 1985 18:48 UTC
    | M 4.6 |
    10 km (6.2 mi) depth
    |
    39 km (24 mi) distance
    | USGS | Details
  • 07 Jul 1985 13:05 UTC
    | M 4.7 |
    10 km (6.2 mi) depth
    |
    54 km (33 mi) distance
    | USGS | Details
    • Show all

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Earlier earthquakes in the same area since 1900

Strong mag. 6.2 earthquake - Offshore Valparaiso, Chile, on Monday, 4 March 1985 at 19:03 (GMT)

Map of earlier quakes

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