Investigate the aseicmic zone in Central Range of Taiwan by analyzing the short-period waveform data

Many scientists are interested in the aseismic zone beneath central Taiwan. However, there are no optimum explanations to prove it. This research is talking about the earthquakes in the aseismic zone beneath Central Range of Taiwan. According to the seismicity from 1992 to 1996 in Taiwan, it is obviously few earthquakes in Central Range. The temporal seismic stations were set up by the Institute of Earth Science (IES) of the Academia Sinica in Taiwan. The continuous short period waveform are powerful enough to provide evidences for whether there are small and local earthquakes or not. The continuous waveform data were collected from January to March in 2007 for stations DT01, DT02 and DT03. We also collected the waveform data, closed to the aseismic zone, recorded by the stations in TAIGER project and Central Weather Bureau Seismic Network (CWBSN). After preliminary processes, there are indeed lots of earthquakes occurred beneath Central Range in aseismic zone. We use those data of events to relocate the earthquakes. We analyze the travel times and waveform of those earthquakes to retrieve tectonic structure beneath central Taiwan.