Visualizing field-measured seismic data

This paper presents visualization of field-measured, time-varying multidimensional earthquake accelerograph readings. Direct volume rendering is used to depict the space-time relationships of seismic readings collected from sensor stations in an intuitive way such that the progress of seismic wave propagation of an earthquake event can be directly observed. The resulting visualization reveals the sequence of seismic wave initiation, propagation, attenuation over time, and energy releasing events. We provide a case study on the magnitude scale Mw 7.6 Chi-Chi earthquake in Taiwan, which is the most thoroughly recorded earthquake event ever in the history. More than 400 stations recorded this event, and the readings from this event increased global strong-motion records five folds. Each station measured east-west, north-south, and vertical component of acceleration for approximately 90 seconds. The sensor network released the initial raw data within minutes after the ChiChi mainshock. It...

• Type: Conference
• Year: 2010
• Where: APVIS
• Authors: Tung-Ju Hsieh, Cheng-Kai Chen, Kwan-Liu Ma
• Keywords: APVIS 2010, Earthquake Event, Information Technology, Seismic Wave, Time-varying Multidimensional Earthquake