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All Journal POSITRON Jurnal Sains Dasar Jurnal Tata Kota dan Daerah Jurnal Fisika Unand JGE (Jurnal Geofisika Eksplorasi) JPSE (Journal of Physical Science and Engineering) INDONESIAN JOURNAL OF APPLIED PHYSICS Jurnal Geosains dan Teknologi KURVATEK Jurnal Teras Fisika : Teori, Modeling, dan Aplikasi Fisika Navigation Physics : Journal of Physics Education Advance Sustainable Science, Engineering and Technology (ASSET) Kaunia: Integration and Interconnection of Islam and Science Journal Cakrawala Jurnal Ilmu Fisika dan Terapannya (JIFTA) Jurnal Stasiun Geofisika Sleman (JSGS) Jurnal Geologi dan Sumberdaya Mineral (Journal of Geology and Mineral Resources) Berkala Arkeologi Wahana Fisika : Jurnal Fisika dan Terapannya Sunan Kalijaga Journal of Physics Jurnal Fisika Rekayasa: Jurnal Penerapan Teknologi dan Pembelajaran
Nugroho Budi Wibowo
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Religion Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Materials Science & Nanotechnology Mathematics Physics Social Sciences Transportation Other

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Analisis kolerasi dan determinasi antara fault fracture density (FFD) dengan bencana tanah longsor kabupaten Simalungun, Sumatera Utara Rosyida, Hana; Wibowo, Nugroho Budi; Khaerunnisa, Icha; S. A., Indar Mery; Jannah, Dea Mutiara; C., Fathunajah Elsha; Khoirunnisa, Salma
Jurnal Teras Fisika: Teori, Modeling, dan Aplikasi Fisika Vol 6 No 2 (2023): Jurnal Teras Fisika: Teori, Modeling, dan Aplikasi Fisika
Publisher : Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.jtf.2023.6.2.11118

Abstract

Kabupaten Simalungun, merupakan salah satu kabupaten di provinsi Sumatera Utara. Berbatasan dengan Kabupaten Toba Samosir dan Danau Toba di sebelah Selatan, daerah ini cukup rawan terhadap bencana tanah longsor. Penelitian ini bertujuan untuk mengetahui korelasi dan determinasi Fault Fracture Density dengan membandingkan jumlah kejadian tanah longsor pada kawasan penelitian. Dari kedua titik tanah longsor diketahui pada titik pertama (Bukit Dolok Simarbalatuk) banyak terjadi aktivitas tanah longsor dibandingkan dengan titik kedua (Jalan Josep Sinaga) yang hanya terjadi sekali. Berdasarkan hasil interpretasi korelasi dan determinasi antara Fault Fracture Density dengan jumlah kejadian tanah longsor didapatkan hubungan positif yang sangat rendah serta menunjukkan bagaimana nilai Fault Fracture Density dapat menjadi faktor banyaknya jumlah kejadian tanah longsor sebesar 2.7%. Curah hujan yang tinggi menjadi faktor yang cukup berpengaruh terhadap bencana tanah longsor pada kawasan penelitian. Kata kunci: Simalungun, Tanah Longsor, Fault Fracture Density , Kolerasi, Curah Hujan
Identification Lithology of Land Movement Zone using the Schlumberger Configuration Geoelectric Method in Samigaluh Distric Kulon Progo Septiana, Rena; Niyartama, Thaqibul Fikri; Wibowo, Nugroho Budi
JPSE (Journal of Physical Science and Engineering) Vol 9, No 1 (2024): JPSE (Journal of Physical Science and Engineering)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Samigaluh Subdistrict in Kulon Progo Regency, Yogyakarta, is prone to landslides. The objective of this study is to determine the subsurface lithology in the land movement zone. The research was conducted using the Schlumberger configuration geoelectric method. Measurements were carried out deploying six lines with line lengths ranging from 100 to 150 m. The results identified a vertical distribution of subsurface rock resistivity values to a depth of 74.05 m with a value of 0.06-13749.51 Ωm. The lithology consists of soil (14.18-361.23 Ωm), clay (0.06-42.73 Ωm), sandstone (0.35-123.44 Ωm), conglomerate (1372.7-10168.66 Ωm), and andesite 13749.51 Ωm. Damage to buildings and roads were found around the formation boundary where the damage is located in the Kebobutak formation.
Lithological Interpretation of Landslide Zone of Arjuna Road Kalongan Village East Ungaran Use Geomagnetic Method Bustari, Ahdian Azri; Andi, Andi; Wibowo, Nugroho Budi; Niyartama, Thaqibul Fikri
POSITRON Vol 14, No 2 (2024): Vol. 14 No. 2 Edition
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Univetsitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/positron.v14i2.75655

Abstract

Arjuna Road in Kalongan Village, East Ungaran, which connects Semarang Regency with Demak Regency, has been cut off due to a landslide. Lithology as an internal controlling factor of landslide occurrence is important to be investigated. Research on the disaster has been conducted to determine the magnetic field anomaly and to interpret subsurface lithology using the geomagnetic method. The research was conducted on the landslide zone at Arjuna Road and its surrounding area using the geomagnetic method with looping data acquisition. The research area includes residential areas and plantation areas of residents with a research area of 1.3 × 0.8 km2 with a total of 104 measurement points. Through the results and analysis of the research, it can be determined that the magnetic field anomalies in the research area range from 17.1 - 882.2 nT where the landslide zone dominantly has a high anomaly indicating the closer the area is to bedrock, and for residential areas and local plantations, the magnetic field anomalies vary from low to high depending on the topography and sediment thickness in the area. In addition, the subsurface lithology in the study area consists of clay soil, claystone, tuff, and volcanic breccia. The impermeable nature of the tuff and the water-low permeable clay soil causes the boundary between the clay soil and tuff layers to become slippery when water seepage occurs, resulting the landslides.
MACROSEISMIC AND MICROSEISMIC ANALYSIS OF M4.4 BATANG EARTHQUAKE, July 7, 2024 Wibowo, Nugroho Budi
KURVATEK Vol 9 No 2 (2024): Energy Management and Sustainable Environment
Publisher : Institut Teknologi Nasional Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33579/krvtk.v9i2.5056

Abstract

On July 7, 2024, an M4.4 earthquake affected Batang, Warungasem, and Wonotunggal sub-districts, causing minor to major damage to houses. This study intends to conduct macroseismic and microseismic studies in the earthquake-affected zone. Macroseismic analysis involves determining the amount of building damage on the MMI intensity scale, whereas microseismic analysis relies on dominant frequency characteristics (fo), amplification factor (Ao), and local geology. Macroseismic study indicates that the Batang earthquake had an intensity of III-IV MMI. The amount of light-to-heavy building damage does not affect the earthquake intensity (MMI) number. This is because the destroyed structures were constructed in a simplistic manner and were not earthquake-resistant. Microseismic investigation revealed that the Alluvium Plain had the dominating distribution of damage, with fo values <3.4 Hz and Ao >4.8. Aside from building quality, local geological variables have an impact on earthquakes on the surface.
Pemodelan 3D Kawasan Longsor Berdasarkan Data Geolistrik Konfigurasi Schlumberger di Kecamatan Ungaran Timur Widyaningrum, Erlina; Niyartama, Thaqibul Fikri; Wibowo, Nugroho Budi; Andi, Andi
Jurnal Geosains dan Teknologi Vol 7, No 1 (2024): April 2024
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jgt.7.1.2024.29-35

Abstract

Desa Kalongan merupakan daerah yang mengalami tanah longsor yang sangat ekstrim pada tahun 2022. Tanah longsor di desa ini terjadi di sekitar pemukiman warga sehingga sangat membahayakan apabila terjadinya longsor secara terus menerus. Salah satu faktor utama penyebab terjadinya tanah longsor yaitu bidang gelincir. Penelitian ini bertujuan untuk melakukan pemodelan 3D dan menganalisis bidang gelincir berdasarkan pemodelan 3D kawasan longsor sebagai penyebab terjadinya tanah longsor di Desa Kalongan. Daerah penelitian terletak di Desa Kalongan Kecamatan Ungaran Timur Kabupaten Semarang. Pengukuran geolistrik sebanyak 11 titik pengukuran dengan panjang lintasan bervariasi antara 120 m s.d. 300 m. Hasil pemodelan multilog 3D menunjukkan distribusi nilai dan susunan lapisan bawah permukaan berdasarkan nilai resistivitasnya. Hasil pemodelan stratigrafi menunjukkan tiga klasifikasi stratigrafi pada daerah penelitian yaitu batuan sedimen (material longsor) dengan nilai resistivitas 1,05 Ωm s.d. 659,16 Ωm, batuan sedimen (diduga sebagai bidang gelincir) dengan nilai resistivitas 0,31 Ωm s.d. 38,45 Ωm, dan batuan dasar dengan nilai resistivitas 469,96 Ωm s.d. 4.130,37 Ωm. Berdasarkan hasil pemodelan tersebut bidang gelincir berasal dari batuan sedimen dengan nilai resistivitas yang rendah yaitu 0,31 Ωm s.d. 38,45 Ωm yang diidentifikasikan sebagai batulempung dan dominan mengarah dari selatan menuju utara.
ANALISIS INDEKS BAHAYA GEMPA BUMI BERDASARKAN PGA PERMUKAAN DI KECAMATAN SANDEN KABUPATEN BANTUL D.I. YOGYAKARTA Umar, Umar; Niyartama, Thaqibul Fikri; Wibowo, Nugroho Budi
Sunan Kalijaga Journal of Physics Vol. 3 No. 2 (2021): Sunan Kalijaga Journal of Physics
Publisher : Prodi Fisika Fakultas Sains dan Teknologi UIN Sunan Kalijaga Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/physics.v3i2.2314

Abstract

This research is motivated by the earthquake phenomena that have occurred in the Yogyakarta area due to the 2006 earthquake. This study aims to determine the earthquake hazard index based on the method developed by BNPB and JICA by making earthquake hazard distribution maps correlated with settlement maps. This research was conducted in Sanden District in the south of Bantul Regency. The BNPB and JICA methods utilize four main parameters, namely shear wave velocity at a depth of 30 meters (Vs30), Ground Amplification Factor (GAF), accelerated ground rock vibration (PGASB) and acceleration of surface ground vibration (PGA). Vs30 is obtained from the inversion method using microtremor measurement data, the Vs30 value is converted into a GAF value using the formula Midorikawa et al (1994), for PGASB it is obtained from the PUSKIM website, based on the earthquake hazard index mapping guide the Vs30 and PGASB values obtained if multiplied then will get the surface PGA value then the surface PGA value is reclassified by the type of class based on the BNPB and JICA methods. The results showed that the value of Vs30 ranged from 154.66 m / s to 260.80 m / s, GAF values ranged from 1.64 g to 2.09 g, PGASB values ranged from 0.52 g to 0.67 g, and PGA values surface ranges from 0.87 to 1.32 g. The earthquake hazard index covers the entire Sanden District with an index value of 1 and the highest distribution of settlements prone to earthquake hazards is in the entire study area.Keywords: Microtremor, Vs30, GAF, surface ground vibration acceleration (PGA), PGASB, earthquake.
Analisis Potensi Likuefaksi Berdasarkan Metode Global Geospatial Model di Kecamatan Sanden Kabupaten Bantul Yogyakarta Annas, Mohamad Chairul; Niyartama, Thaqibul Fikri; Wibowo, Nugroho Budi
Sunan Kalijaga Journal of Physics Vol. 3 No. 1 (2021): Sunan Kalijaga Journal of Physics
Publisher : Prodi Fisika Fakultas Sains dan Teknologi UIN Sunan Kalijaga Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/physics.v3i1.2316

Abstract

This research is motivated by the liquefaction phenomenon that has occurred in Yogyakarta area due to the 2006 earthquake. This study aims to find out the probability of liquefaction based on the Global Geospatial Model (GGM) method and create a map of the distribution of liquefaction-prone settlements. This research was conducted in Sanden Subdistrict in the southern part of Bantul Regency. The GGM method utilizes three main parameters: shear wave speed at a depth of 30 meters (Vs30), acceleration of ground vibration (PGA) and ground wetness index (CTI). Vs30 is derived from the inverse method of microtremor measurement results, PGA is obtained from the PUSKIM website and the CTI value is obtained from the Centre for Ecology and Hydrology's (CEH) website. The results showed that vs30 values ranged from 154.66 m / s to 260.80 m / s, CTI values ranged from 5.45 to 9.28 and PGA values ranged from 0.52 g to 0.67 g. The potential for liquefaction occurred throughout Sanden Subdistrict with a probability value of > 0.99 and the highest distribution of likuefkasi-prone settlements in the east of the research area.  
Comparison of Seismic Vulnerability Index Microzonation Using Usgs Vs30 Data and Microtremor Signal Measurements in Prambanan and Gantiwarno Sub-Districts, Klaten Regency: Perbandingan Mikrozonasi Indeks Kerentanan Seismik (Kg) Hasil Pengolahan Vs30 Usgs dengan Pengukuran Sinyal Mikrotremor di Kecamatan Prambanan dan Kecamatan Gantiwarno Kabupaten Klaten Fajarningrum, Fitri; Wibowo, Nugroho Budi
Sunan Kalijaga Journal of Physics Vol. 6 No. 1 (2024): Sunan Kalijaga Journal of Physics
Publisher : Prodi Fisika Fakultas Sains dan Teknologi UIN Sunan Kalijaga Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/physics.v6i1.5138

Abstract

The May 27, 2006 tectonic earthquake that rocked the Bantul area of Yogyakarta and several areas in Central Java resulted in a lot of damage to buildings and casualties. Earthquake is a disaster that can be minimized by disaster mitigation, one of which is the seismic vulnerability index data of an area. This study aims to compare the microzonation of the seismic susceptibility index (Kg) as a result of measurement of microtremor signals by processing data Vs30 USGS. The data used were 30 microtremor signal measurement points and topographic models from the USGS website in Prambanan and Gantiwarno Districts, Klaten Regency. The calculation result of Vs30 USGS shows the value of seismic vulnerability index (Kg), which ranges from to . Meanwhile, the seismic vulnerability index value (Kg) results from the measurement of the microtremor signal, which ranges from to . Comparative graphs of data from measurements of microtremor signals with the results of processing Vs30 USGS produced R-values square small. This is due to several factors, namely the shift of measurement points with data points Vs30 USGS (longitude and latitude slightly shifted). In addition, the results of calculation of Vs30 USGS are based on the topography of the earth's surface which is limited to a depth of 30 meters so that it does not represent the results of measurement data directly.
Visualization of Microseismic Processing by Coding with GNU Octave Purnama, Aditya Yoga; Nurhanafi, Kholis; Susanti, Susanti; Wibowo, Nugroho Budi
Navigation Physics : Journal of Physics Education Vol 7, No 1 (2025): Navigation Physics : Journal of Physics Education Vol. 7 No. 1 Tahun 2025
Publisher : UNIVERSITAS INDRAPRASTA PGRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30998/npjpe.v7i1.3965

Abstract

The use of software in the field of geophysics is often limited to the instantaneous use of interfaces without a deep understanding of the computational processes behind them. This leads to limitations in data interpretation and the development of new methods. To address this issue, it is necessary to explicitly visualize the data processing process through programming in order to strengthen computational thinking skills, which are one of the important competencies of the 21st century. This study aims to visualize the microseismic data processing process using programming in GNU Octave software. The method used is a simulation of microseismic data processing based on the HVSR (Horizontal to Vertical Spectral Ratio) approach, with field data collected from the Yogyakarta area. The processing is carried out by building a programming script in GNU Octave, the results of which are then compared with the Geopsy software as a verification tool. The research results indicate that data processing visualization using the HVSR method through GNU Octave can be performed effectively, and the results exhibit high consistency with the output from Geopsy. The dominant frequency on both curves is the same at a frequency of 1.59 Hz. In addition to the dominant frequency, the HVSR curve shape of both software also shows a similar trend pattern in the mid to high frequency range (around 2–10 Hz), where the amplification value decreases gradually. This demonstrates the accuracy of the developed script and proves that this approach can serve as an educational tool for understanding the functioning of geophysical software in a more transparent and in-depth manner. Programming with GNU Octave can be used as an efficient and accurate geophysical analysis tool. This provides opportunities for users, especially in academic environments with limited access to commercial software.
EARTHQUAKE VULNERABILITY MAPPING BASED ON MICROSEISMIC MEASUREMENTS IN THE CAMPUS AREA OF UNIVERSITAS SARJANAWIYATA TAMANSISWA YOGYAKARTA Purnama, Aditya Yoga; Nurhanafi, Kholis; Susanti, Susanti; Wibowo, Nugroho Budi; Perdhana, Radhitya
JGE (Jurnal Geofisika Eksplorasi) Vol. 11 No. 2 (2025)
Publisher : Engineering Faculty Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jge.v11i2.486

Abstract

Building damage caused by earthquakes is more prevalent in the sedimentary areas of Yogyakarta City compared to the hilly regions of Wonosari and Kulonprogo, which have harder soil layers. The campus of Universitas Sarjanawiyata Tamansiswa (UST) is one of the campuses located in Yogyakarta City, where the regional geology is dominated by the Merapi Young Volcanic Deposits Formation. The UST campus area is vulnerable to earthquakes due to its proximity to an active seismic zone, making earthquake vulnerability mapping based on microseismic data an important necessity to support disaster mitigation efforts. The microseismic method was used in this study, while data analysis employed the Horizontal-to-Vertical Spectral Ratio (HVSR). Microseismic measurements were chosen because they have the advantage of not damaging the surface conditions of the ground, thus preserving the environment, and are easy to use in urban areas. The research method stages include survey design, field data collection, data processing and interpretation, and the creation of earthquake vulnerability maps. Data points were collected from 7 locations covering the Universitas Sarjanawiyata Tamansiswa campus area. The research results indicate that the study area has a dominant frequency value ranging from 1.10 to 2.74 Hz. Meanwhile, the amplification value ranges from 1.25 to 2.2. The sediment thickness of the study area ranges from 32 to 79 meters. The Seismic Vulnerability Index (Kg) of the study area ranges from 0.57 to 4 on a low to high scale. Based on the dominant frequency values, amplification, and seismic vulnerability index, the areas of the UST campus that are more vulnerable to earthquakes are the northern, eastern, and central parts, while the southern part is relatively safer.
Co-Authors Achmad Maulana Achsan Adam Ardiansyah Aditya Yoga Purnama Ahmad Zarkasi Andi Andi Andi Andi Annas, Mohamad Chairul Arif Gunawan Arif Sudrajat Arif, Iktifal Ajie Aryono Adhi, Aryono Bilqis El Farsiyyi, Billqis El Farsiyyi Budi Astuti Bustari, Ahdian Azri C., Fathunajah Elsha Christalianingsih, Fathunajah Elsa Cindiwati Dayana, Desi Novi Dea Mutiara Jannah Denny Darmawan Desi Mustami Limayukha, Desi Mustami Limayukha Elsa Fadlika Widyantari, Elsa Fadlika Widyantari Elsha C., Fathunajah Fajarningrum, Fitri Fathonah, Ira Maya Fathunajah Elsha C. Fathunajah Elsha Christalianingsih Hana Rosyida Heningtyas Heningtyas Icha Khaerunnisa Ika Kurnaiwati Ika Kurniawati Ilqia Rahma, Ilqia Rahma Imdadu Rohman Indar Mery Sulya A. Intifadhah, Sahara Hamas Jannah, Dea Mutiara Khaerunnisa, Icha Khafidh Nur Aziz Khoirunnisa, Salma Kholis Nurhanafi Laila Katriani Meita Aulia Sari Meita Aulia Saru Merizka Marsyelina Mery S. A., Indar Mifta Arunahul Janah Muhammad Faza Syaddad Ar-rafi Mutiara Jannah, Dea Nining Pratiwi Novi Dwi Ariani, Novi Dwi Nur Faqhina Mentari Nurhaci, Dian Susri Perdhana, Radhitya Petiwi, Gofur Dyah Ayu Gilang Pratama, Irfan Rahmania Sofyana Ulya, Rahmania Sofyana Ulya Rahmawati, Zeni Restiana, Sheira Anggi Rifka Addawiyah Rosyida, Hana S. A., Indar Mery Sahirah, Firyal Nida Salma khoirunnisa Sarwi Sembri, Juwita Nur Septiana, Rena Sorayawati, Riska Sumardi, Yoshaphat Susanti Susanti Susanti, Dwi Budi Syaddad Ar- Rafi, Muhammad Faza Thaqibul Fikri Niyartama Thaqibul Fikri Niyartama Ulfa Fadhilah Umar Umar Umi Habibah Widianingrum, Erlina Widyaningrum, Erlina Wuri Handayani Yosaphat Sumardi Yuni Setiawati