Article citationsMore>>

Fukuoka, K., Ehara, S., Fujimitsu, Y., Udi, H., Setyawan, A., Setijadji, L.D., Harijoko, A., Pramumijoyo, S., Setiadi, Y. and Wahyudi (2008) Interpretation of the 27 May 2006 Yogyakarta Earthquake Hypocenter and Subsurface Structure Deduced from the Aftershock and Gravity Data. In: Karnawati, D., Pramumijoyo, S., Anderson, R. and Husein, S., Eds., The Yogyakarta Earthquake of May 27, 2006, Star Publisher, Los Angeles (in Press).

has been cited by the following article:

• TITLE: Understanding of Earthquake Damage Pattern through Geomorphological Approach: A Case Study of 2006 Earthquake in Bantul, Yogyakarta, Indonesia

  AUTHORS: Dwi Wahyuni Nurwihastuti, Junun Sartohadi, Djati Mardiatno, Udo Nehren, Restu

  KEYWORDS: Earthquake Damage Pattern, Geomorphology, Subsurface Characteristic

  JOURNAL NAME: World Journal of Engineering and Technology, Vol.2 No.3B, September 18, 2014

  ABSTRACT: The last major earthquake in Bantul causing severe damage occurred on May 27th, 2006. The damages in the flat area of Bantul had a certain pattern. The damages pattern controlled the subsurface characteristic below the flat area. Understanding earthquake damage pattern through geo-morphological approach is important for earthquake hazard analysis. The techniques of remote sensing and Geographical Information Systems were applied to analyze earthquake damage pattern and geomorphological characteristics. Gravity analysis was used to identify the subsurface structure and the basement depth while geoelectric analysis was used to identify sediment depth. Moreover, spatial correlation analysis was used to identify the relationship between the earthquake damage, geomorphological characteristics, and subsurface characteristics. The results show that fluvial, marine, and aeolian landforms have low rock density value based on gravity analysis. These indicate that they were composed by thick unconsolidated material of quaternary alluvium. While denudational, structural, and solutional landforms composed by material of tertiary rocks have high rock density value. The severe damage occurred in the area that has a lower value of local gravity and deeper basement. In contrast, the slight damage occurred in the area that has higher values of local gravity and shallower basement. Moreover, the severe damage occurred in areas of thicker sediment that consist of unconsolidated material. Consequently, the area of unconsolidated material that has deeper basement and thicker sediment is prone to earthquake. They were located on fluvial, marine, and aeolian landforms.