Thread: IRIS WEBINAR: Urban Seismology in Megacities: the Los Angeles BASIN Experiment, 3/11 at 2 PM Eastern

Started: 2020-03-03 09:13:49
Last activity: 2020-03-03 09:13:49
Topics: Webinars
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

Any questions? Contact us at webinar<at>

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