Hsiang‐Chih Chiu

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About

Hsiang-Chih Chiu is a leading figure in observational seismology and geophysical instrumentation, whose work has fundamentally advanced the measurement of ground motion. His primary research focuses on the development and application of rotational seismology, particularly the use of rotational sensors to correct for rotation-induced errors in traditional accelerometer data. His most-cited paper, "Application of Rotational Sensors to Correcting Rotation-Induced Effects on Accelerometers" (2010, 30 citations), addresses a critical limitation in seismology: the contamination of translational acceleration records by rotational motions. By demonstrating how rotational sensors can isolate and remove these artifacts, Chiu provided a pathway to more accurate dynamic and permanent seismic displacement measurements—essential for both earthquake science and structural engineering. This work has helped refine the interpretation of strong-motion data, improving our understanding of near-field ground deformation and seismic hazard. Chiu’s contributions are particularly notable for bridging the gap between theoretical seismology and practical instrumentation, offering solutions that enhance the fidelity of seismic arrays worldwide. His research continues to influence the design of modern monitoring networks, making him a key innovator in the quest for precise, rotation-corrected seismic observations.