...Steeve J. Symithe; Eric Calais; Jennifer S. Haase; Andrew M. Freed; Roby Douilly Abstract The 12 January 2010 M w 7.0 Haiti earthquake ruptured the previously unmapped Léogâne fault, a secondary transpressional structure located close to the Enriquillo fault, the major fault system assumed...

... geodetic measurements and its geomorphic expression to be capable of producing M 7 or larger earthquakes. Global Positioning Systems ( GPS ) and Interferometric Synthetic Aperture Radar (InSAR) data, however, showed that the event ruptured a previously unmapped fault, the Léogâne fault, a north‐dipping...

...Figure 12. (a) Interpretive cross section for the Léogâne fan and dashed blue line showing the proposed fault geometry for the Léogâne fault blind reverse fault (modified from Douilly et al., 2015 ). (b) Free-air corrected gravity results, B-B′. (c) Time-migrated seismic section for line A. ...

... program, to try to help build Haiti's geophysical capability and assist in finding subsurface evidence of the proposed blind fault. The team reconnoitered the epicentral region of the 2010 earthquake and selected sites on the Léogâne delta fan for land surveys. The team enjoyed a productive and pleasant...

... pointed to most of the rupture occurring on the previously unknown Léogâne fault just to the north of and roughly parallel to the EPGF ( Calais et al. , 2010 ; Hayes et al. , 2010 ). The rupture sequence was complex and some motion on the EPGF and on the Trois Baies fault (at the western end...

...Stacey S. Martin; Susan E. Hough ABSTRACT The grave threat posed by the Enriquillo‐Plantain Garden fault zone (EPGFZ) and other fault systems on the Tiburon Peninsula in southern Haiti was highlighted by the catastrophic M 7.0 Léogâne earthquake on 12 January 2010 and again by the deadly M 7.2...

... paleoseismicity; the event was complex and it remains unclear which faults were involved. The epicenter was within a few kilometers from the EPGF, but the slip process could have occurred in multiple faults, including the Leogane fault ( Hayes et al., 2010 ; Prentice et al., 2010 ; Calais et al., 2010...

... earthquake occurred near Léogâne, approximately 20 km west of Port-au-Prince along the Enriquillo–Plantain Garden fault system ( Figure 1 ). It impacted a large, densely populated area of Haiti, including Port-au-Prince, with a population of 1.2 million, where Modified Mercalli Intensity (MMI) shaking...

... rupture of the 2010 mainshock, is located along the Enriquillo fault from the white star to the 1701 earthquake orange star. The small green circles are the locations of towns mentioned in the text: A, Old Azua; AaV, Anse a Veau; C, Cotui; CdS, Cul‐de‐Sac; CH, Cap Haitien; H, Hinche; L, Leogane; LC, Les...

... foothills is between the main range to the south and the Léogâne fan to the north. The northern edge of these foothills is poorly delineated due to low relief and extensive embayment ( Fig. 2B ), and we found no clear, throughgoing fault trace along this range front. Between Dufort and L'Acul, the range...