WEBINAR: Urban Seismology in Megacities: the Los Angeles BASIN Experiment

Wednesday, March 11, 2020, 2:00pm ET

Please register for Urban Seismology in Megacities: the Los Angeles BASIN Experiment on March 11, 2020 2:00 PM EDT at:


Presented by: Dr. Patricia Persaud, Louisiana State University

Abstract: The greater Los Angeles area is a megacity by the United Nations definition and the third largest city in the world based on combined statistical area. Here the seismic hazard is driven by the potential proximity of large earthquakes and complicated local structure. Sources of potentially damaging earthquakes in the LA area include the southern San Andreas Fault, located roughly 60 km north-east of the city, as well as the series of faults that lie below the area. The collection of complex sedimentary basins underlying the area are known to amplify the motions from seismic waves, and this effect may be underestimated in current ground motions estimates. The Basin Amplification Seismic INvestigation (BASIN) project was started in 2017. It is a multicomponent earthquake hazard project between LSU, Caltech, Harvard, Cal Poly Pomona and SDSU that focuses on characterizing the amplification of seismic waves as they travel through sedimentary basins. Our goal is to first map the structure of the basins in the Los Angeles area, and to integrate the basins’ structure into computer simulations of ground motion. As part of the BASIN project, we have deployed 744 nodal seismometers along 10 densely-spaced seismic profiles in the greater Los Angeles area. Our deployment teams were comprised of ~60 volunteers. I will present project results, and practical information on our seismic experiment and the community involvement of Los Angeles area residents.

After registering, you will receive a confirmation email containing information about joining the webinar. PLEASE NOTE: Registration does not confirm or guarantee you will have a spot during the webinar, as we are limited to 500 participants. Please hop on the webinar early for your best chances to see the webinar live. Remember that all IRIS webinars are archived for later viewing at https://www.youtube.com/playlist?list=PLD4D607C2FA317E6D

Any questions? Contact us at webinar@iris.edu