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| Local date | October 21, 1766 |
|---|---|
| Local time | 04:30 (at Cumaná, Venezuela) |
| Magnitude | 6.5–7.5 Ms |
| Depth | 85 ± 20 km (53 ± 12 mi) |
| Epicenter | 11°00′N 62°30′W / 11.0°N 62.5°W |
| Areas affected | Venezuela, Trinidad |
| Max. intensity | EMS-98 IX (Destructive)– EMS-98 X (Very destructive) |
| Casualties | None recorded |
Venezuela and Trinidad were struck by a major earthquake on 21 October 1766 at 4:30 in the morning local time in Cumaná, Venezuela (4:45 local time in Trinidad). It caused widespread damage from Caracas in the west to Georgetown, Guyana in the east. Despite the significant damage caused, there are no reports of casualties associated with this earthquake. It had an estimated magnitude in the range 6.5–7.5 Ms and a maximum felt intensity of IX-X (destructive to very destructive) on the European macroseismic scale. It was felt from Guadeloupe in the north to the Ventuari River in the south and Maracaibo in the west and Kaw, French Guiana in the east.[1]
- ^ Mocquet, A. (2007). "Analysis and interpretation of the October 21, 1766 earthquake in the Southeastern Caribbean". Journal of Seismology. 11 (4): 381–403. Bibcode:2007JSeis..11..381M. doi:10.1007/s10950-007-9059-x. S2CID 128549406.