 |
| Titel |
Revision of the geological context of the Port-au-Prince metropolitan area, Haiti: implications for slope failures and seismic hazard assessment |
| VerfasserIn |
M. Terrier, A. Bialkowski, A. Nachbaur, C. Prépetit, Y. F. Joseph |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1561-8633
|
| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Sciences ; 14, no. 9 ; Nr. 14, no. 9 (2014-09-26), S.2577-2587 |
| Datensatznummer |
250118671
|
| Publikation (Nr.) |
 copernicus.org/nhess-14-2577-2014.pdf |
|
|
|
|
|
| Zusammenfassung |
| Following the earthquake of 12 January 2010 in the Port-au-Prince area, the
Haitian government, in close cooperation with BRGM, the French geological
Survey, decided to undertake a seismic microzonation study of the
metropolitan area of the capital in order to take more fully into account the
seismic risk in the urbanization and planning of the city under
reconstruction. As the first step of the microzonation project, a geological
study has been carried out. Deposits of Miocene and Pliocene formations in a
marine environment have been identified. These deposits are affected by the
Enriquillo-Plantain Garden N80° E fault system and N110° E faults. Tectonic observations and
morphological analysis indicate Quaternary activity of several faults mapped
in the area of Port-au-Prince. These faults have a N110° trend and
show a reverse-sinistral strike-slip motion. Moreover, on the basis of these
geological results and of new topographical data, a hazard assessment of
ground movements has been made. Along with the map of active faults, the
hazard map of ground movements is an integral component of the seismic
microzonation study. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|