Study of potential for earthquake acceleration around NYIA, Kulon Progo based on the history of seismicity in Yogyakarta

Abstract

Abstract The need for an international airport for the Yogyakarta area has been met with the presence of the new airport, New Yogyakarta International Airport, which is located on the coast of Kulon Progo Regency. The presence of the new airport had become a debate because of its location on Congot Beach and Glagah Beach. One of the debates is the link to vulnerability to earthquakes. This study is intended to determine the Peak Ground Acceleration (PGA) in the area around the airport to the sources of earthquakes that have occurred in the Yogyakarta and surrounding areas, so that the potential level of damage that can be determined. The research method used is to use data from the location of the nearest past earthquake and then calculate the acceleration using the PGA formula. The results of calculations with shallow earthquake sources and megathrust PGA values range from 0.05 to 0.189 gal. This value when converted to the MMI scale shows the V-VII scale.