Seismic hazard maps for Haiti
Earthquake Spectra
By: Arthur Frankel, Stephen Harmsen, Charles Mueller, Eric Calais, and Jennifer Haase
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Abstract
We have produced probabilistic seismic hazard maps of Haiti for peak ground acceleration and response spectral accelerations that include the hazard from the major crustal faults, subduction zones, and background earthquakes. The hazard from the Enriquillo-Plantain Garden, Septentrional, and Matheux-Neiba fault zones was estimated using fault slip rates determined from GPS measurements. The hazard from the subduction zones along the northern and southeastern coasts of Hispaniola was calculated from slip rates derived from GPS data and the overall plate motion. Hazard maps were made for a firm-rock site condition and for a grid of shallow shear-wave velocities estimated from topographic slope. The maps show substantial hazard throughout Haiti, with the highest hazard in Haiti along the Enriquillo-Plantain Garden and Septentrional fault zones. The Matheux-Neiba Fault exhibits high hazard in the maps for 2% probability of exceedance in 50 years, although its slip rate is poorly constrained.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Seismic hazard maps for Haiti |
| Series title | Earthquake Spectra |
| DOI | 10.1193/1.3631016 |
| Volume | 27 |
| Issue | S1 |
| Year Published | 2011 |
| Language | English |
| Publisher | EERI |
| Publisher location | Oakland, CA |
| Contributing office(s) | Earthquake Science Center |
| Description | 39 p. |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Earthquake Spectra |
| First page | S23 |
| Last page | S41 |
| Country | Haiti |
| Google Analytic Metrics | Metrics page |