Physical Sciences and Mathematics Commons^™

Assessing Quaternary Geohazards In Hispaniola And Jamaica Using Seismic, Remote Sensing And Sediment Core Data, Vanshan Wright

Earth Sciences Theses and Dissertations

The Enriquillo-Plantain Garden Fault Zone (EPGFZ) is a system of predominantly left-lateral strike-slip faults extending through Eastern Jamaica and Western Hispaniola. The fault zone has generated at least one large (> Mw 6) earthquake per century within the last five centuries. These earthquakes include the 2010 Mw 7 Haitian earthquake which killed 300, 000 people and the 1907 Jamaican earthquake which killed ~900 people. Both earthquakes resulted in significant infrastructural damages, tsunamis, landslides and ground fissures.

This dissertation provides insights into the history, and societal impacts of active faulting and earthquake triggered geohazards within the EPGFZ. Herein, I show that …

Investigating Seismic Deformation Associated With The Aging And Subduction Of Oceanic Lithosphere Using Teleseismic Earthquake Relocation And Insar Techniques, Kevin Kwong

Earth Sciences Theses and Dissertations

Based on seismicity and deformation patterns, the evolution and subduction of oceanic lithosphere can be divided into three domains: 1) the incoming oceanic lithosphere plate, 2) the megathrust plate boundary, and 3) the down-going slab. Well-located hypocenters illuminate fault complexity in space and time and verify details of surface deformation within or associated with the subduction system. This dissertation presents high-resolution earthquake catalogs derived using teleseismic double-difference (DD) relocation to best resolve earthquakes in absolute space, while providing relative locations for more detail fault studies. In the Wharton Basin, a new earthquake catalog allows more detailed examination of complex oceanic …