1st International Conference on Science and Technology, ICOST 2019, 2-3 May, Makassar, Indonesia

Research Article

The Depth of Pressure Source and Magma Supply Volume for Merapi Eruption during 2009-2011 Using the Combination of Yokoyama and Mogi Model

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  • @INPROCEEDINGS{10.4108/eai.2-5-2019.2284690,
        author={Andi Athiyah Anshariyah and Abdul  Basid},
        title={The Depth of Pressure Source and Magma Supply Volume for Merapi Eruption during 2009-2011 Using the Combination of Yokoyama and Mogi Model},
        proceedings={1st International Conference on Science and Technology, ICOST 2019, 2-3 May, Makassar, Indonesia},
        publisher={EAI},
        proceedings_a={ICOST},
        year={2019},
        month={6},
        keywords={merapi volcano gps survey volcano modelling},
        doi={10.4108/eai.2-5-2019.2284690}
    }
    
  • Andi Athiyah Anshariyah
    Abdul Basid
    Year: 2019
    The Depth of Pressure Source and Magma Supply Volume for Merapi Eruption during 2009-2011 Using the Combination of Yokoyama and Mogi Model
    ICOST
    EAI
    DOI: 10.4108/eai.2-5-2019.2284690
Andi Athiyah Anshariyah1,*, Abdul Basid1
  • 1: Department of Physics, Faculty of Science and Technology, Universitas Islam Negeri Maulana Malik Ibrahim Malang, Indonesia. 65144
*Contact email: athiyahanshariyah@gmail.com

Abstract

Merapi Volcano is an active stratovolcano located on the border between Central Java and Yogyakarta Province, Indonesia. A VEI (Volcano Explosively Index) IV eruption of Merapi began on 26th october 2010. This research aims to estimate the depth of pressure source and magma supply volume during 2009 - 2011. There are eight GPS stations installed around merapi volcano. During the eruption in October 2010, GPS data have shown lengthening of the baselines between Merapi’s crater and monitoring stations, it means that merapi has already entered into inflation process. Merapi Volcano begins to deflate in 2011. Estimation of the depth of pressure source and magma supply volume has been done using Mogi and Yokoyama models. The result shown the depth of pressure source before eruption is around 2.3 km and the magma supply volume about 55 million m3.