Integrated monitoring of pre-earthquake signals in Taiwan

Abstract:

In the search of possible earthquake precursors in the Taiwan area, there have been continuous measurements of the gravity, geomagnetic perturbation, crustal deformation, ionospheric disturbance, ground water level, and leaky gas (Radon ) from the crust in the past two decades. In 2010, a major project “Integrated Earthquake Precursors and Early Warning for Seismic Disaster Prevention in Taiwan” was initiated by the Ministry of Science and Technology. Under this project, the gamma-ray sensors, downhole strainmeters, telluric electric field measurements and thermal infrared ray analysis are further established. In addition, an electric coupling model for the lithosphere-atmosphere-ionosphere was developed. In this talk, some important results from the integrated observations and theoretical models for pre-earthquake signals will be presented.