An Academic Report by Dr. Wei Shengji from Nanyang Technological University, Singapore

In order to further focus on the national development goal of "deep earth, deep sea, deep space and deep blue" and build the academic research system of "scientific research-engineering support-deep earth exploration", the school invited Dr. Wei Shengji from Nanyang Technological University of Singapore to give a special academic report on "An overview on seismic wavefield propagation and seismic hazard investigation" on Nov. 24, 2021. More than 100 teachers and students attended the lecture which was hosted by Prof. Zhang Jing.

Dr. Wei Shengji has been a researcher at the Earth Observatory of Singapore since 2014, and Assistant Dean (Research) and Assistant Professor at the Asian School of Environment, Nanyang Technological University, Singapore. He worked at the Seismology Laboratory, California Institute of Technology, USA during his postdoctoral phase. Dr. Wei Shengji is currently an associate editor of “the Bulletin of the Seismological Society of America” and “Geoscience Letters”, a member of the editorial board of “Earthquake Science”, a guest editor of “Geoscience Letters”, and has published more than 80 papers in journals with high impact. His research focuses on seismic source observation and earthquake physics, imaging of subsurface structures and their source tectonics and geodynamic interpretation, artificial earthquakes and real-time seismology.

The report mainly introduced the basic principles and phenomena of seismology, and the analysis methods of wave field theory and numerical simulation and seismic observation mapping; introduced the latest research results of Wei Shengji's group on seismic hazards and sources, and discussed the latest academic progress in the direction of seismic hazard monitoring and seismic physics; and discussed the principles of seismic monitoring and early warning by geophones, fiber optic distributed acoustic sensing (DAS) and other technical methods, as well as their application prospects in the fields of seismic wave recording, geological analysis, oil exploration, road and pipeline monitoring, etc. Dr. Wei's report was detailed and easy to understand, which deeply inspired the participants.

After the report, Dr. Wei Shengji had an in-depth academic discussion with many teachers and students on the existing seismograph information transmission mode, seismic wave calculation and inversion, future seismic monitoring methods and other issues.