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All Journal Jurnal Pendidikan Fisika dan Keilmuan (JPFK) Physics Education Research Journal
Rusli Rusli
Department of Physics, Science and Technology of Faculty, Universitas Islam Negeri Maulana Malik Ibrahim Malang
Astronomy Education Physics

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Mapping The Risk Level of Earthquake Damage in Central Java Based on Data From PGA, PD and HDI Abdul Basid; Rusli Rusli; Purwandari Purwandari
Jurnal Pendidikan Fisika dan Keilmuan (JPFK) Vol 7, No 2 (2021)
Publisher : UNIVERISTAS PGRI MADIUN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/jpfk.v7i2.12078

Abstract

Central Java is one of the provinces in Indonesia with a fairly high level of seismicity. During January 2021 alone there were 22 tectonic earthquakes, one of which occurred in Banyumas (M.5). With this fairly high seismicity, it is necessary to reduce its impact through mitigation. One of the efforts that can be done is to map the level of risk of damage. This mapping can be made based on the Peak Ground Acceleration (PGA) value combined with the Population Density (PD) and Human Development Index (HDI) values. Two methods were used to calculate PGA based on the 1970-2020 earthquake data, namely the Crouse (1991) and Donovan (1973) methods. The results of the calculation using the Crouse method obtained the highest PGA value of 92–180 gal (VI-VII MMI) and the Donovan method obtained the value of 92-107 gal (VI MMI). From this PGA value combined with the PD and HDI values in each district in Central Java, a map of the level of risk of damage caused by the earthquake is made. The results of the mapping show that the districts of Klaten, Cilacap, Kebumen, Banyumas, Brebes, Magelang, Demak and Semarang have a fairly high risk of damage.   
Aplikasi Metode Geolistrik untuk Mengetahui Sebaran Batubara di Kabupaten Tulungagung Jawa Timur Rusli Rusli; Elvira Azizah; Abdul Basid
Physics Education Research Journal Vol 2, No 1 (2020)
Publisher : Faculty of Science and Education, UIN Walisongo Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/perj.2020.2.1.5040

Abstract

Research has been conducted aiming to determine the distribution of coal below the surface in Tulungagung Regency. The survey conducted in this study used a Wenner configuration resistivity geoelectric survey. Retrieval of geolithic resistivity data in the field of four trajectories. The results of data collection in the field oneach track are processed using 2D modeling in Res2dinv software. The results of the processing of the two-dimensional modeling are then interpreted. The structure of rock layers containing coal is shown by a yellow, red to dark purple scheme with a resistivity value of 75-350 ohm meters on the inside varying from 0 meters to 6.91 meters below the surface, spreading erratically and patching on each track.
Co-Authors Abdul Basid Aldri Frinaldi Elvira Azizah Purwandari Purwandari