The Application of Monitoring and Early Warning System of Rainfall-Triggered Debris Flow at Merapi Volcano, Central Java, Indonesia

  • Teuku Faisal Fathani
  • Djoko Legono
Part of the Environmental Science and Engineering book series (ESE)


The 2010 Mt. Merapi eruption has produced approximately 140 million m3 of pyroclastic deposit, in which more than 10 million m3 deposits are potential to move downstream through Boyong/Code River towards Yogyakarta City. The flow behavior of Code River may be affected by the presence of accumulated sediment at the upstream of the river (namely Boyong River). By rainfall trigger, this potential source can cause debris flow disaster that may contribute damage to the settlement areas in Yogyakarta City. This paper presents the application of monitoring and early warning system to mitigate the impact of debris flow disaster along Boyong/Code River as revealed by most adaptive, low cost, and collaborative-based technology. The real-time monitoring equipment consists of automatic rainfall recorder, automatic water level recorder, debris sensor, and interval camera. The system was developed by considering the community aspiration in determining the types and placement of monitoring equipment, and maintaining its sustainability. The information flow of the proposed early warning system has been introduced accordingly. The central station receives the results of the real-time monitoring and the information through radio communication from the focal points located along Boyong/Code River. Afterward, the warning alert is sent to focal points and the debris flow monitoring radio. This newly built system is expected to be integrated with the monitoring system of other volcanic rivers at Merapi Volcano.


Volcanic debris flow Real-time monitoring Early warning system Community preparedness 


  1. Legono D, Rahardjo AP, Fathani TF, Prabowo IE (2008) Development of community-based early warning system against debris flow at Mt. Merapi Indonesia. In: Proceeding of the first world landslide forum, 18–21 Nov 2008, Tokyo, Japan, pp 404–406Google Scholar
  2. Legono D, Prabowo IE, Karnawati D, Fathani TF, Rahardjo AP (2011a) Lahar flow disaster monitoring and mitigation based on community collaboration. In: Proceeding of symposium Merapi, 21 Feb 2011, Yogyakarta, Indonesia pp 11–16Google Scholar
  3. Legono D, Prabowo IE, Fathani TF, Karnawati D, Rahardjo AP (2011b) Development of collaborative-based lahar flow early warning system for Code River at Yogyakarta City. In: Proceeding of international seminar on water related risk management, 15–17 July 2011, Jakarta, IndonesiaGoogle Scholar
  4. Ministry of Land, Infrastructure and Transport—MLIT (2004) Development of warning and evacuation system against sediment disasters in developing countries, Guidelines for construction technology transfer, Infrastructure Development Institute, JapanGoogle Scholar
  5. Takahashi T (1991) Lahar flow—monograph. IAHR, AA Balkema, Rotterdam, The NetherlandsGoogle Scholar
  6. Wardoyo W, Legono D, Fathani TF, Jayadi R (2010) Pyroclastic deposit characteristics of volcanic rivers and its affect to the transport mechanism. In: Proceeding of IAHR-APD international seminar, 21–24 Feb 2010, Auckland, New ZealandGoogle Scholar
  7. Wisner B (2006) Self-assessment of coping capacity: Participatory, proactive and qualitative engagement of communities in their own risk management. Measuring vulnerability to natural hazard. United Nations University Press, Tokyo, pp 316–328Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  1. 1.Department of Civil and Environmental EngineeringUniversitas Gadjah MadaYogyakartaIndonesia

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