Table 2 Description of the input data for the Mora and Vahrson (1999) model (Grade 2)

Relief

Raster shape file (shp.)

▪ Derived from the slope analysis and contour data

▪ Contour interval: 12.5 m

▪ Scale 1:25,000

▪ Published by Geospatial Information Agency of Indonesia

Lithology

Vector shape file (shp.)

▪ Derived from the 1:100,000 geology map of Yogyakarta (Rahardjo et al., 1995) and double-checked by topographic map, geomorphology map (Nurwihastuti, 2008), and visual interpretation result of ASTER imagery using 3,4, PCA56789 colour composite.

Natural humidity of Soil

Vector shape file (shp.)

▪ Derived from the rainfall data (1983–2013) of 10 rainfall stations in study area (Barongan, Dogongan, Jatingarang, Karangploso, Piring, Tanjungtirto, Terong, Umbulharjo, Wates and DPU Yogyakarta rainfall station)

▪ spatialized by Thiessen polygons

Seismic intensity

Raster shape file (shp.)

▪ Calculated from all of earthquakes occurrence with the magnitude greater than 5 between 1973 and 2014 obtained from USGS earthquake catalogue

▪ Attenuation used: Kanai attenuation model (Douglas 2011).

▪ Interpolation used: IDW method

▪ Using predominant frequency of soil from field measurement conducted by (Daryono, 2011).

Rainfall Intensity

Vector shape file (shp.)

▪ Derived from the rainfall data (1983–2013) of 10 rainfall stations in study area (Barongan, Dogongan, Jatingarang, Karangploso, Piring, Tanjungtirto, Terong, Umbulharjo, Wates and DPU Yogyakarta rainfall station)

▪ represented in Thiessen polygons