A dense Texan array with 109 stations was deployed on the Ilan Plain in NE Taiwan to record seismic signals from local earthquakes. The acquisition period spanned from August 2014 to January 2015. The instrument used was a Geospace GS-11D vertical geophone with a peak response at 4.5 Hz connected to a Texan digitizer (REF TEK RT-125A) with a 100-Hz sampling rate.