| Identity: 9720266 |
| Date of the earthquake: 21 May 1946 |
| Time of the earthquake: 9 h 16 min 46 sec |
| Nature of the shock: Main shock |
| Epicentral region: MARTINIQUE − MARTINIQUE |
|
| Geographic co-ordinates (degrees, sexagesimal minutes) |
| Longitude: 60° 28' W, Latitude: 14° 48' N |
| Reliability index: Imprecise location (C) |
| Intensity at the epicentre (according to the MSK 1964 macro-seismic scale): |
| Intensity: 7,5 |
| Reliability index: Not very certain (C) |