Sri Prabandiyani Retno Wardani

Disaster Management in Central Java Province, Indonesia

Recent disasters in Indonesia have brought disaster management as the first priority of actions as government’s responsibility role. A pro-active approach to elucidate the problem through concentrating on post-disaster and pre-disaster phases in addition to disaster phase has become very important management pertaining to disaster. Disaster management must be applied as an integrated and comprehensive activity. It is a continuing process not temporary action. Integration means and implies linkage in all aspects as well as dimensions and comprehensive implies broad coverage. This paper will discuss the disaster management in Central Java Province and inherent aspects of environment in Central Java Province. Besides that, this paper emphasizes the role of Diponegoro University, Indonesia along with Joint Working Group on Geotechnical on Geotechnical Engineering for Disaster Mitigation and Rehabilitation (JWG-DMR) and Ministry of Public Works of the Republic of Indonesia conducting specific program in evolving suitable programs for preventing, rehabilitating and mitigating future disaster.

Development of acceleration time histories for Semarang, Indonesia, due to shallow crustal fault earthquakes

Research on seismic, microzonation of Semarang is still ongoing. Following the research conducted by Team for Revision of Hazard Maps of Indonesia 2010, Lasem fault was the only fault that should be taken into account for seismic mitigation of Semarang. New research conducted by Team for Updating of Seismic Hazard Maps of Indonesia 2016 suggesting four new and closest shallow crustal fault sources (Rawapening, Weleri, Demak and Semarang Faults) which should be taken into account for seismic hazard mitigation of this city. Those four new seismic sources are typical reverse mechanism seismic sources. However Lasem fault is a typical strike slip mechanism seismic source. This paper presents the development of surface acceleration time histories due to three shallow crustal fault (Lasem, Semarang and Demak) earthquake sources with average magnitude 6.5 Mw. This research was performed by implementing de-aggregation hazard analysis, response spectral matching and site response analysis to obtain modified accele...

Lessons Learned from the Recent Natural Disasters in Indonesia

Indonesia was at risk from this earthquake because the region was in the megathrust region. Two deadly earthquakes struck the region early and late in September 2009. A 7.3-Mw magnitude earthquake struck the Tasikmalaya District, West Java Province, at a depth of 30 km on September 2, 2009. Additionally, a magnitude 7.6 earthquake hit Padang on September 30, 2009, the epicenter of which was about 60 km northwest of Padang at a depth greater than 120 km. Massive geotechnical hazards were reported in those quakes. The bursting of the Situ Gintung dam on March 27, 2009 washed away housing and the settlement downstream of the dam. Some lessons can be learned from those disasters. This chapter aims to review the disasters’ geotechnical aspects. The recent disasters in Indonesia pointed out poor preparedness in disaster management. Households, governments, and schools have to enhance their awareness and understanding of collateral hazards. An integrated disaster early warning system (EWS) must be improved for high-risk regions to reduce damage and loss.