Seismic Bulletin of Haiti for the Year 2023
- 828 earthquakes of magnitude 0.6 to 5.5 were recorded in 2023, an average of 69 per month, compared with 1,451 in 2022.
- 729 earthquakes (88%) had a magnitude of 3 or less; 99 (12%) ranged from 3.1 to 5.5, including 89 from 3.1 to 3.9, 8 from 4 to 4.8 and 2 of 5.5.
- The largest magnitude, 5.5, occurred in February west of Môle Saint-Nicolas and in June between Abricot and Jérémie.
- About 408 earthquakes (49.3%) occurred at sea and 443 (53.5%) at a depth of 10 km or less.
- From August 14, 2021 to December 31, 2023 the three southern departments recorded 2,915 earthquakes, mostly aftershocks, with a clear decline from August 2022.
The review covers the twelve months of 2023 and draws on local networks (Ayiti-séismes and the UTS) and regional networks (Cuba, Jamaica and the Dominican Republic). It records 828 earthquakes of magnitude 0.6 to 5.5, an average of 69 per month, compared with 1,451 in 2022, which the unit attributes mainly to the continuing aftershocks of the August 14, 2021 earthquake. Of these, 729 (88%) had a magnitude of 3 or less, about 408 (49.3%) occurred at sea and 443 (53.5%) at a depth of 10 km or less.
In January to June, 487 earthquakes (58.8%) were led by Grand'Anse and Nippes, while July to December had 341 (41.1%) with a ranking from Nord-Ouest down to Nord that resembles the pattern before August 2021, which the unit reads as the probable end of the aftershocks. From August 14, 2021 to December 31, 2023 the three southern departments recorded 2,915 earthquakes, mostly assimilated to aftershocks, with a clear decline from August 2022.
How to cite
Bureau of Mines and Energy (BME), Seismic Bulletin of Haiti for the Year 2023, https://bme.gouv.ht/media/upload/doc/publications/Bulletin_sismique_annuel_2023_vf.pdf
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- Bureau des Mines et de l'Énergie (BME)