Blue and green polygons outline the Long Beach phase A and B deployments, respectively. VF, Verdugo Fault ERF, Eagle Rock Fault EMF, East Montebello Fault WHF, Workman Hill Fault. ( A) Map of the Los Angeles Basin showing the Newport-Inglewood Fault and other faults. Los Angeles Basin and Long Beach dense nodal deployment. Microseismic monitoring is important for this densely populated city because earthquake locations provide essential constraints on the location and geometry of active faults and the hazards they pose ( 1– 3). ![]() 1), as do other faults that either traverse or surround the Los Angeles Basin, including the Palos Verdes, Santa Monica–Hollywood, Sierra Madre, and Whittier Faults as well as some blind faults. The Newport-Inglewood Fault runs directly through Los Angeles ( Fig. The Los Angeles metropolitan area is located within an active plate boundary. This is due to the various types of seismic noise generated in cities and the logistical difficulties of instrument deployment. ![]() However, the same factors-population and infrastructure-that cause risk exposure to be high also make earthquake monitoring difficult to carry out. Ideally, the intensive earthquake monitoring efforts in urban areas would be used to characterize the fault systems that pose the most immediate and direct threats to cities. Earthquake risk is highest in urban settings, owing to population density and to the presence of extensive and vulnerable infrastructure.
0 Comments
Leave a Reply. |