Earthquake LogM7.5 earthquake, Antigua and Barbuda, 1974-10-08
MagnitudeM7.5ms
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Depth47 km
Time (UTC)1974-10-08 09:50
Rank in 19742 / 97among M6+
Rank since 1900460 / 14,458
Energy vs an M6×178approx.
25 km NW of Saint John’s, Antigua and Barbuda · 17.30, -62.00
M6.5+ within 300 km (largest first)
M7.5
M7.4
M7.2
M7.0
M6.5
M6.5
Earlier M6+ within 300 km
| Event | Time (UTC) | Depth | Place |
|---|---|---|---|
| M6.1 1970-07-08 | 1970-07-08 04:49 | 143 km | 22 km NNE of Saint Croix, U.S. Virgin Islands |
| M6.0 1970-01-07 | 1970-01-07 07:56 | 35 km | 145 km ESE of Beauséjour, Guadeloupe |
| M6.1 1969-12-25 | 1969-12-25 22:31 | 20 km | 133 km ESE of Beauséjour, Guadeloupe |
| M6.0 1969-05-15 | 1969-05-15 20:43 | 30 km | 40 km NE of Anse-Bertrand, Guadeloupe |
| M6.4 1967-12-24 | 1967-12-24 20:03 | 12 km | 64 km ENE of Parham, Antigua and Barbuda |
| M6.4 1959-01-08 | 1959-01-08 01:33 | 139 km | 18 km SSE of Berekua, Dominica |
| M6.2 1935-11-10 | 1935-11-10 18:27 | 15 km | 32 km SSE of Fig Tree, Saint Kitts and Nevis |
| M6.1 1925-09-29 | 1925-09-29 17:33 | 15 km | 74 km NNE of The Valley, Anguilla |
| M6.1 1925-07-07 | 1925-07-07 17:43 | 15 km | 105 km ENE of Parham, Antigua and Barbuda |
| M6.0 1925-07-07 | 1925-07-07 15:05 | 15 km | 165 km NNE of Codrington, Antigua and Barbuda |
Energy ratio uses the rule that one magnitude unit is about 32 times the energy. Magnitudes and locations are USGS values and can differ from national agencies. Older records are less complete and less precise.