M 7.2 – 13 km SSE of Petit Trou de Nippes, Haiti

The death toll from the quake continues as civil protection agency said at least 724 were dead and at least2,800 injured.

Tectonic Summary

The August 14, 2021 M 7.2 earthquake occurred as the result of oblique reverse motion along the Enriquillo-Plantain Garden fault zone, ~125 km west of the  capital Port-au-Prince. The earthquake occurred at shallow depths on either a reverse fault striking west and dipping to the north with a component of left-lateral slip, or a fault striking southeast and dipping to the southwest with a component of right-lateral slip. At the location of the earthquake, the local plate boundary is dominated by left-lateral strike slip motion and compression. The plate boundary in this location accommodates eastward, left-lateral motion of the Caribbean plate relative to the North America plate. Within this context, the earthquake likely occurred on the east-west striking, north dipping fault plane with a component of left-lateral slip.

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1) Bruce Dingwall, CBE,

Trinity Exploration & Production plc.      Death of Director  

2) BP plc Group Results Second quarter and half year 2021

3) Address by His Excellency Dr Mohamed Irfaan Ali, President of Guyana, on the First Anniversary of his Presidency

4)     The Caribbean Academy of Sciences (CAS)