IGPP is pleased to invite you to join its Spring 2022 Seminar Series presentation featuring University of Houston's Yingcai Zheng. Dr. Zheng's talk, "Fluid-Filled Fractures as fluid pressure amplifier for earthquake dynamic triggering and fluid flow enhancement" will be available via Zoom on Tuesday, May 3, 2022, starting at 12:00pm. Zoom: https://ucsd.zoom.us/j/92737413660?pwd=eFRsZ08yZ2N2Q01vNUpWNmtIN2t4dz09. Password: Fracture
Time: 12:00 pm, Pacific Time
Location: Zoom
Note: This meeting will be recorded. Please make sure that you are comfortable with this before registering.
Abstract: In 2018, I found using numerical modeling a large pressure amplification effect in a fluid filled fracture for a weak driving force such as an incident seismic wave from thousands of kilometers away. We call it pressure surge phenomenon (PSP). This effect is significant because it is related to induced and triggered seismicity by amplifying the incident wave pressure more than 2 orders of magnitude. Now during the quite pandemic time, we conducted lab experiments and showed that the PSP was indeed real. In the talk, I will review the background of PSP and discuss its potential applications in seismology, volcanology, and applied geophysics.