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Major mag. 7.2 earthquake - Off the Coast of Valparaiso, Chile on Friday, 16 October 1981

Major mag. 7.2 earthquake  - Off the Coast of Valparaiso, Chile on Friday, 16 October 1981
Date & time: Friday, 16 October 1981 03:25 UTC
Magnitude: 7.2
Depth: 33.0 km
Epicenter latitude / longitude: 33.134°S / 73.074°W (Chile)
Nearby towns and cities:
135 km (84 mi) W of Valparaíso (pop: 282,400)
142 km (88 mi) W of Viña del Mar (pop: 294,600)
144 km (89 mi) NW of Cartagena (pop: 16,900)
146 km (90 mi) NW of San Antonio (pop: 85,700)
152 km (95 mi) W of Quilpué (pop: 130,300)
228 km (142 mi) W of Santiago (pop: 4,837,300)
Primary data source: USGS
Estimated released energy: 4 x 1015 joules (1106 gigawatt hours, equivalent to 9.5 x 105 tons of TNT or 59.5 atomic bombs!) [learn more]
If you felt this quake (or if you were near the epicenter), please share your experience and submit a short "I felt it" report! Other users would love to hear about it!
Also if you did NOT feel the quake although you were in the area, please report it! Your contribution is valuable also to earthquake science and earthquake hazard analysis and mitigation efforts. You can use your device location or the map to indicate where you were during the earthquake. Thank you!

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.
TimeMag. / DepthLocationSource
Fri, 16 Oct 03:25 UTCM 7.2 / 33 kmOff the Coast of 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!

Aftershocks of the 7.2 quake: Off the Coast of Valparaiso, Chile, 16 Oct 1981 03:25

More info
Recorded aftershocks, latest first (20 quakes):
  • 26 Apr 1983 08:42 UTC
    | M 5.0 |
    47.5 km (29.5 mi) depth
    |
    160 km (99 mi) distance
    | USGS | Details
  • 19 Jun 1982 16:22 UTC
    | M 4.4 |
    33 km (20.5 mi) depth
    |
    118 km (74 mi) distance
    | USGS | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    8441 km (5245 mi) distance
    | | Details
  • 11 Jun 1982 22:08 UTC
    | M 4.0 |
    33 km (20.5 mi) depth
    |
    128 km (80 mi) distance
    | USGS | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    8441 km (5245 mi) distance
    | | Details
  • 29 Mar 1982 03:13 UTC
    | M 4.2 |
    33 km (20.5 mi) depth
    |
    158 km (98 mi) distance
    | USGS | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    8441 km (5245 mi) distance
    | | Details
  • 25 Feb 1982 21:59 UTC
    | M 5.2 |
    53 km (32.9 mi) depth
    |
    19 km (12 mi) distance
    | USGS | Details
  • 31 Oct 1981 14:47 UTC
    | M 4.7 |
    33 km (20.5 mi) depth
    |
    94 km (58 mi) distance
    | USGS | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    8441 km (5245 mi) distance
    | | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    8441 km (5245 mi) distance
    | | Details
  • 31 Oct 1981 00:18 UTC
    | M 4.5 |
    33 km (20.5 mi) depth
    |
    26 km (16 mi) distance
    | USGS | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    8441 km (5245 mi) distance
    | | Details
  • 22 Oct 1981 11:39 UTC
    | M 5.1 |
    26 km (16.2 mi) depth
    |
    15 km (9 mi) distance
    | USGS | Details
  • 17 Oct 1981 05:15 UTC
    | M 4.5 |
    33 km (20.5 mi) depth
    |
    12 km (7 mi) distance
    | USGS | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    8441 km (5245 mi) distance
    | | Details
  • 16 Oct 1981 23:24 UTC
    | M 4.8 |
    33 km (20.5 mi) depth
    |
    19 km (12 mi) distance
    | USGS | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    8441 km (5245 mi) distance
    | | Details
  • 16 Oct 1981 16:21 UTC
    | M 4.5 |
    33 km (20.5 mi) depth
    |
    27 km (17 mi) distance
    | USGS | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    8441 km (5245 mi) distance
    | | Details

Earlier earthquakes in the same area

Major mag. 7.2 earthquake - Off the Coast of Valparaiso, Chile on Friday, 16 October 1981
 

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