Very strong mag. 6.5 earthquake - Caribbean Sea, 43 km southeast of Basseterre, St. Kitts & Nevis, on Saturday, 16 March 1985 at 14:54 (GMT)

Very strong mag. 6.5 earthquake - Caribbean Sea, 43 km southeast of Basseterre, St. Kitts & Nevis, on Saturday, 16 March 1985 at 14:54 (GMT)

Very strong magnitude 6.5 earthquake at 13 km depth

Date & time: 16 Mar 1985 14:54:00 UTC
Magnitude: 6.5
Depth: 13.4 km
Epicenter latitude / longitude: 17.013°N / 62.448°W (Caribbean Sea, St. Kitts & Nevis)
Nearest volcano: Nevis Peak (21 km / 13 mi)
Nearby towns and cities:
19 km (12 mi) SE of Gingerland (pop: 493) --> See nearby quakes!
19 km (12 mi) SE of Market Shop (Stonyhill) (pop: 2,570) --> See nearby quakes!
21 km (13 mi) SE of Fig Tree (Church Ground) (pop: 2,920) --> See nearby quakes!
22 km (14 mi) SE of Charlestown (pop: 1,540) --> See nearby quakes!
25 km (15 mi) SE of Cotton Ground (pop: 381) --> See nearby quakes!
25 km (16 mi) SE of Newcastle (pop: 493) --> See nearby quakes!
43 km (27 mi) SE of Basseterre (pop: 12,900) --> See nearby quakes!
65 km (41 mi) W of Saint John (Antigua & Barbuda) (pop: 24,200) --> See nearby quakes!
95 km (59 mi) SW of Codrington (Antigua & Barbuda) (pop: 1,330) --> See nearby quakes!
107 km (67 mi) SSE of Gustavia (St. Barthélemy) (pop: 5,990) --> See nearby quakes!
129 km (80 mi) SSE of Philipsburg (Sint Maarten) (pop: 1,400) --> See nearby quakes!
135 km (84 mi) SSE of Marigot (St. Martin) (pop: 5,700) --> See nearby quakes!
136 km (85 mi) NW of Basse-Terre (Guadeloupe) (pop: 11,500) --> See nearby quakes!
149 km (92 mi) SSE of The Valley (Anguilla) (pop: 2,040) --> See nearby quakes!
221 km (138 mi) NNW of Roseau (Dominica) (pop: 16,600) --> See nearby quakes!
279 km (173 mi) SE of Road Town (British Virgin Islands) (pop: 8,450) --> See nearby quakes!
302 km (188 mi) ESE of Charlotte Amalie (U.S. Virgin Islands) (pop: 20,000) --> See nearby quakes!
306 km (190 mi) NNW of Fort-de-France (Martinique) (pop: 90,000) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 3.5 x 1014 joules (98.6 gigawatt hours, equivalent to 84802 tons of TNT or 5.3 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 6.513 kmSaint Kitts and Nevis region, Leeward Islands (St. Kitts & Nevis)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

More info
Recorded aftershocks, latest first (13 quakes):
  • 24 Jun 1985 21:19 UTC
    | M 4.5 |
    33 km (20.5 mi) depth
    |
    3 km (2 mi) distance
    | USGS | Details
  • 13 Apr 1985 04:12 UTC
    | M 5.0 |
    18.7 km (11.6 mi) depth
    |
    5 km (3 mi) distance
    | USGS | Details
  • 10 Apr 1985 07:02 UTC
    | M 4.3 |
    33 km (20.5 mi) depth
    |
    12 km (7 mi) distance
    | USGS | Details
  • 10 Apr 1985 06:15 UTC
    | M 4.2 |
    33 km (20.5 mi) depth
    |
    8 km (5 mi) distance
    | USGS | Details
  • 09 Apr 1985 12:30 UTC
    | M 4.3 |
    16.9 km (10.5 mi) depth
    |
    2 km (1 mi) distance
    | USGS | Details
  • 09 Apr 1985 11:53 UTC
    | M 3.9 |
    27.4 km (17 mi) depth
    |
    9 km (5 mi) distance
    | USGS | Details
  • 04 Apr 1985 06:01 UTC
    | M 4.4 |
    30 km (18.6 mi) depth
    |
    3 km (2 mi) distance
    | USGS | Details
  • 29 Mar 1985 05:19 UTC
    | M 4.3 |
    10 km (6.2 mi) depth
    |
    8 km (5 mi) distance
    | USGS | Details
  • 19 Mar 1985 16:53 UTC
    | M 4.7 |
    33 km (20.5 mi) depth
    |
    10 km (6 mi) distance
    | USGS | Details
  • 19 Mar 1985 10:45 UTC
    | M 5.1 |
    14.7 km (9.1 mi) depth
    |
    24 km (15 mi) distance
    | USGS | Details
  • 17 Mar 1985 03:41 UTC
    | M 4.8 |
    24.8 km (15.4 mi) depth
    |
    7 km (5 mi) distance
    | USGS | Details
  • 16 Mar 1985 20:38 UTC
    | M 4.4 |
    30.5 km (19 mi) depth
    |
    10 km (6 mi) distance
    | USGS | Details
  • 16 Mar 1985 14:57 UTC
    | M 5.6 |
    33 km (20.5 mi) depth
    |
    8 km (5 mi) distance
    | USGS | Details

Earlier earthquakes in the same area

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