Friday Informal Seminar Hour - Yingcai Zheng (University of Houston)
Deep Earthquake Seismic Radiation Problems and Solutions
It is well known that a shear dislocation faulting mechanism produces double-couple seismic-wave radiation. However, in the past ~50 years, with growing seismic data and analysis methods, people have documented worldwide that a large number of deep earthquakes were not double-couples. This reinforced the belief that deep earthquake source processes are fundamentally different from shallow earthquakes. In this talk, I will give an overview about this issue and propose a solution. I will also discuss its link with the slab structure, mineralogy, and geodynamics.
About this Series
The Friday Informal Seminar Hour [FISH, Earth Resources Laboratory] is a postdoc-run weekly seminar series within the ERL. Topics include research relating to geophysics, and in particular seismology, with applications in Earth resources exploration such as e.g. seismics exploration, microseismicity, earthquake physics, and Earth imaging techniques. The seminars usually take place on Fridays at 12 noon in 54-209 (term-time only). 2016/2017 co-ordinators: William Frank (firstname.lastname@example.org), Chen Gu (email@example.com), Joshua Kastorf (firstname.lastname@example.org)