Strong mag. 6.1 earthquake - Offshore Valparaiso, Chile, on Saturday, 21 May 1988 at 14:28 (GMT)

Strong mag. 6.1 earthquake - Offshore Valparaiso, Chile, on Saturday, 21 May 1988 at 14:28 (GMT)

Strong magnitude 6.1 earthquake at 42 km depth

Date & time: 21 May 1988 14:28:39 UTC
Magnitude: 6.1
Depth: 42.1 km
Epicenter latitude / longitude: 32.833°S / 71.704°W (Chile)
Nearest volcano: Tupungatito (188 km / 117 mi)
Nearby towns and cities:
24 km (15 mi) NNW of Valparaiso (pop: 282,400) --> See nearby quakes!
26 km (16 mi) NW of Viña del Mar (pop: 294,600) --> See nearby quakes!
34 km (21 mi) NW of Quilpué (pop: 130,300) --> See nearby quakes!
39 km (24 mi) NW of Villa Alemana (pop: 97,300) --> See nearby quakes!
43 km (27 mi) W of Quillota (pop: 67,800) --> See nearby quakes!
46 km (28 mi) WNW of Limache (Marga Marga) (pop: 35,900) --> See nearby quakes!
46 km (29 mi) W of Hacienda La Calera (pop: 49,100) --> See nearby quakes!
61 km (38 mi) SW of La Ligua (Petorca) (pop: 24,900) --> See nearby quakes!
120 km (75 mi) NW of Santiago (pop: 4,837,300) --> See nearby quakes!
136 km (85 mi) NW of Puente Alto (pop: 510,400) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 8.9 x 1013 joules (24.8 gigawatt hours, equivalent to 21301 tons of TNT or 1.3 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 6.142 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 6.1 quake Offshore Valparaiso, Chile, 21 May 1988 14:28 GMT

More info
Recorded aftershocks, latest first (7 quakes):
  • 14 Nov 1988 16:55 UTC
    | M 5.1 |
    53.4 km (33.2 mi) depth
    |
    36 km (22 mi) distance
    | USGS | Details
  • 29 Sep 1988 03:32 UTC
    | M 4.5 |
    57.3 km (35.6 mi) depth
    |
    47 km (29 mi) distance
    | USGS | Details
  • 29 Sep 1988 02:46 UTC
    | M 4.5 |
    61.9 km (38.5 mi) depth
    |
    47 km (29 mi) distance
    | USGS | Details
  • 22 Sep 1988 05:47 UTC
    | M 4.7 |
    55.8 km (34.7 mi) depth
    |
    21 km (13 mi) distance
    | USGS | Details
  • 05 Sep 1988 09:57 UTC
    | M 4.7 |
    43.8 km (27.2 mi) depth
    |
    33 km (21 mi) distance
    | USGS | Details
  • 14 Aug 1988 17:48 UTC
    | M 4.9 |
    49.9 km (31 mi) depth
    |
    41 km (26 mi) distance
    | USGS | Details
  • 21 May 1988 19:34 UTC
    | M 4.6 |
    49 km (30.4 mi) depth
    |
    28 km (17 mi) distance
    | USGS | Details

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Earlier earthquakes in the same area since 1900

Strong mag. 6.1 earthquake - Offshore Valparaiso, Chile, on Saturday, 21 May 1988 at 14:28 (GMT)

Map of earlier quakes

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