Our next webinar highlights “Slow Earthquake and Tremor: Imaging a Wide Spectrum of Fault Slip with Mini-Seismic Arrays” from 2-3 pm ET (7-8 pm UTC) on Thursday 11/14.
Register to attend: https://www2.gotomeeting.com/register/734202602
You will be emailed a confirmation containing a link for accessing the webinar. The presentation and subsequent interactions between the speaker, host, and audience are recorded and made available within a few days. Access to the webinar archive, along with related materials and more information on the series is found here: http://www.iris.edu/hq/webinar/
Presenter: Dr. Abhijit Ghosh, Assistant Professor, University of California-Riverside
Slow earthquakes releases significant amount of stress form major plate boundary faults worldwide. In addition, there is ample evidence that slow earthquakes interacts with their regular counterparts and affect the overall fault dynamics. Yet, characterizing their tectonic behavior remains challenging due to the nature of deformation and complex seismic radiation, i.e. tremor. Beam backprojection technique images slow earthquakes in high resolution by detecting and locating seismic tremor using well-designed mini seismic arrays. I use this technique in Cascadia and Alaska subduction zone, and San Andreas Fault to show the evolution of slip during slow earthquakes as expressed by seismic tremor. Analyses of the intricate details of the spatiotemporal distribution of tremor and its migration patterns are providing new insights into the physics driving slow earthquakes and fault mechanics.
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