Intensity, attenuation and building damage from the 27th May 2006 Yogyakarta earthquake

Abstract

The 27th May 2006 Yogyakarta earthquake caused more than 5500 casualties and hundreds of thousands of non-engineered buildings collapsed. It is necessary to investigate the seismic intensity, ground acceleration and building damage index. Direct site investigations to collect the severity distribution of objects, humans and environments have been done. The result of the investigation shows that in general isoseismic lines are in-line with Opak fault, the proposed attenuation relationship for seismic intensity and horizontal ground accelerations are matching well with previous research results and the distribution of the building damage index has a similar pattern with isoseismic lines. © 2011 WIT Press.