Throughout May, Haiti experienced a significant increase in seismic activity, with more than 60 earthquakes detected across the nation.
These tremors varied in intensity, with magnitudes ranging from 1.1 to 3.3 on the Richter scale, indicating a month of notable geological unrest.
Regional monitoring highlights frequent, shallow quakes
Data collected by seismic networks in Cuba, Jamaica, and the Dominican Republic revealed that a majority of these tremors were mild, with 63 earthquakes registering a magnitude of three or less.
Moreover, a substantial number of these quakes were shallow, occurring at depths of 10 kilometers or less, which often results in them being more distinctly felt on the surface.
Potential tsunami risk identified
The geographical distribution of the earthquakes showed a concerning pattern, with 20 of them occurring at sea. Notably, seven of these marine quakes took place along the northern fault line of Haiti.
This positioning raised concerns about the potential for a tsunami, should the seismic activity meet certain oceanographic and geological conditions.
Geographic spread of earthquakes
The tremors were not evenly distributed across the country. The North-West department recorded the highest number with 21 earthquakes, followed by the West department with 18. The Nippes and the South-East departments also experienced significant activity, with 10 and seven earthquakes respectively.
This distribution highlights the varying degrees of seismic vulnerability within different regions of Haiti.
Underlying causes of seismic activity
Haiti’s frequent seismic activity can be attributed to its location on a major fault line, where the North American and Caribbean tectonic plates meet.
These plates, large segments of the Earth’s crust, slide past each other over time, creating conditions conducive to earthquakes.
