DOI Number : 10.5614/itbj.sci.2007.39.1-2.1
Hits : 17

Karakteristik Deformasi Gunungapi Ijen dalam Periode 2002-2005 Hasil Estimasi Metode Survei GPS

Hasanuddin Z. Abidin1, Muhammad Hendrasto2, Heri Andreas1, Muhammad Gamal1, Mipi A. Kusuma1, Umar Rosadi2,  Iyan Mulyana2, Dedi Mulyadi2, Ony K. Suganda2, Bambang H. Purwanto2 & Fumiaki Kimata3

1Kelompok Keilmuan Geodesi, Fakultas Teknik Sipil dan Lingkungan ITB,
Ganesha 10, Bandung 40132, e-mail:

2Pusat Vulkanologi dan Mitigasi Bencana Geologi,  Jl. Diponegoro 57, Bandung
3Research Center for Seismology and Volcanology and Disaster Mitigation (RCSVDM), Nagoya University, Japan


Monitoring of volcano activity can be done using several methods, which one of them is the deformation method. This method can be implemented by utilizing various sensors and techniques, which one of them is based on the observations to GPS (Global Positioning System) satellites. This paper describes the use of GPS survey method for studying the deformation of Ijen volcano, a type-A active volcano located in East Java. The results of GPS surveys conducted on June 2002, April 2004, June 2004 and August 2005 show that during the increase activity of Ijen, the observed displacements of GPS stations can reach the amount of about 1-2 dm, both in horizontal and vertical components. This level of deformation however, was not followed by the eruption of Ijen volcano.

Keywords: deformation; GPS; Ijen; volcano.

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