[3] It had an estimated magnitude (scale unspecified) of 8.5, making it the strongest recorded earthquake in the Caribbean and a maximum perceived intensity of shaking of IX on the Mercalli intensity scale.

[2] Later work by Hough in 2013, taking account of reports of the earthquake from the US, supported a magnitude of at least 8.5 for this event.

[3] In Guadeloupe, Pointe-à-Pitre suffered severe damage with a maximum of 8–900 houses being destroyed of the 1,222 that existed before the earthquake.

[5] On Antigua, a rise in sea level by 1.2 meters was interpreted as run-up from the tsunami triggered by the quake.

A wharf on the southeast part of the island sank and took on an "undulating appearance".