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All Journal Jurnal Ilmiah Dinamika Rekayasa (DINAREK) Jurnal Meteorologi Klimatologi dan Geofisika Jurnal Mineral, Energi dan Lingkungan Jurnal Teras Fisika : Teori, Modeling, dan Aplikasi Fisika Jurnal Mineral, Energi dan Lingkungan Website
Giamboro, Wrego Seno
Fakultas Teknologi Mineral
Astronomy Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Physics

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ANALISI HUBUNGAN MAGNITUDO GEMPA BUMI TERHADAP HASIL FREKUENSI DOMINAN PADA RANGKAIAN GEMPA ACEH 2004, YOGYAKARTA 2006, PALU DAN LOMBOK 2018 SEBAGAI UPAYA MITIGASI BENCANA Nela Elisa Dwiyanti; Vira Irnanda, Elleona Septi N; Indriati Retno Palupi; Wiji Raharjo; Wrego Seno Giamboro; Afriliani M Handini; Ananda Achlaqul Karimah; Ririn Setyowati; Edoarddo Tobing
Jurnal Meteorologi Klimatologi dan Geofisika Vol 7 No 3 (2020): Jurnal Meteorologi Klimatologi dan Geofisika
Publisher : Unit Penelitian dan Pengabdian Masyarakat Sekolah Tinggi Meteorologi Klimatologi dan Geofisika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36754/jmkg.v7i3.203

Abstract

Indonesia is located at the boundaries of three major plate of the world, namely Indo-Australia, Eurasia, and the Pacific Plates. This has made Indonesia prone to earthquakes, so mitigation are needed. The purpose of this research is to determine the empirical relationship between earthquake magnitude and dominant frequency results based on several major earthquake events in Indonesia such as in Aceh 2004, Yogyakarta 2006, Lombok and Palu 2018 as an effort to earthquake hazard mitigation in Indonesia. Magnitude carries information about earthquake power based on the energy released from the hypocenter. Physically, magnitude is related to frequency. The frequency can obtained from earthquake records in time domain which are converted to frequency domain by Fast Fourier Transform method. Earthquake data is obtained from IRIS and uses 89 events with magnitude of 4-9. In Aceh, Yogyakarta, Lombok, and Palu that relatioship between magnitude and frequency are y = -0.053x + 6.2999, y = 0.018x + 4.082, y = -0.0496x + 6.455, and y = -0.0192x + 5.3129. In this research, it can be concluded that the bigger magnitude of the earthquake has smaller frequency. The potential magnitude that appear if the seismicity are low in Aceh, Yogyakarta, Lombok, and Palu are 6.2, 4, 6.4, and 5.3.
Integrasi Data Geologi, Morfologi, dan Geofisika Metode Geolistrik Resistivitas untuk Delineasi Zona Rawan Longsor Daerah Wonotunggal, Jawa Tengah Karimah, Ananda Achlaqul; Setyowati, Ririn; Handini, Afriliani M; Giamboro, Wrego Seno
Dinamika Rekayasa Vol 18, No 1 (2022): Jurnal Ilmiah Dinamika Rekayasa - Februari 2022
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dr.2022.18.1.423

Abstract

Abstrak—BPBD Pekalongan mengungkapkan bahwa sebayak tujuh kecamatan di daerah Pegunungan Kabupaten Pekalongan dinilai rawan longsor. Hasil integrasi data geologi, morfologi, dan geofisika geolistrik resistivitas ini bertujuan untuk mengetahui persebaran dan volume stable & unstable zone sebagai pengontrol mass-movement, arah bidang gelincir, delineasi zona rawan longsor sehingga mampu dilakukan mitigasi berkelanjutan di daerah yang rawan terdampak tanah longsor. Berdasarkan data geologi, Pekalongan memiliki stratigrafi berupa Alluvium, Lava Andesit dan Klastika gunung api. Data morfologi menunjukkan kemiringan lereng sebesar 0-35% dan data curah hujan rata-rata daerah Pekalongan pada tahun 2013-2017 mencapai 2000 mm/tahun. Berdasarkan hasil data geolistrik konfigurasi dipole-dipole dengan 12 lintasan berarah Barat Laut-Tenggara dan panjang 280 meter diinterpretasikan terdapat 3 litologi batuan berupa andesit (>800 Ω.m) sebagai bedrock yang bersifat resisten (stable), dan Klastika Gunung Api (34.5–50 Ω.m) serta alluvium (<34.5 Ω.m) yang diidentifikasi sebagai batuan non-resisten (unstable). Pemodelan 3D geolistrik mendapatkan informasi berupa kemiringan bidang gelincir yang berarah Utara-Selatan dan volume unstable zone sebesar 64.620.680 m3. Hasil integrasi data menunjukkkan bahwa daerah penelitian memiliki kemiringan lereng searah dengan bidang gelincir (utara-selatan) sehingga berpotensi terjadi tanah longsor sehingga perlu dilakukan program mitigasi lanjutan khususnya pada area selatan kavling penelitian. Kata kunci —  Bidang Gelincir, Geolistrik, Mitigasi, Resistivitas, Tanah Longsor
Analisis Continuous Wavelet Transform (CWT) Anomali Residual Medan Gravitasi Di Situs Geologi Karangsambung Kebumen Jawa Tengah Wahyu Hidayat; Wrego Seno Giamboro
Jurnal Mineral, Energi dan Lingkungan Vol 2, No 2 (2018): Desember
Publisher : Fakultas Teknologi Mineral, Universitas Pembangunan Nasional (UPN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (20.098 KB) | DOI: 10.31315/jmel.v2i2.2368

Abstract

Gravity method is a passive geophysical method that provides information on the distribution of rock density below the surface. The gravity method has a weakness at the level of ambiguity in determining the depth of the anomaly. This study aims to determine the depth of the anomaly using Continuous Wavelet Transform (CWT) analysis to overcome the value of ambiguity, so that the results obtained have a high degree of accuracy. The research method is data survey / acquisition and data analysis. This research was conducted in Karangsambung Kebumen, Central Java with the acquisition of gravitational data as many as 56 measurement points. The results of data acquisition then analyzed included reading to mGal, tool height correction, drift, tides, latitude, free air correction, Bouguer correction, and field correction. The results of this correction obtained Complete Bouguer Anomalies (ABL) values which were then reduced to flat fields and regional-residual anomaly filters. The next step is CWT analysis by making incisions on residual anomaly maps. The results showed that the source of the anomaly was between ± 39.2 - 122.9 meters.
Analisis Continuous Wavelet Transform (CWT) Anomali Residual Medan Gravitasi Di Situs Geologi Karangsambung Kebumen Jawa Tengah Wahyu Hidayat; Wrego Seno Giamboro
Jurnal Mineral, Energi dan Lingkungan Vol 2, No 2 (2018): Desember
Publisher : Fakultas Teknologi Mineral, Universitas Pembangunan Nasional (UPN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/jmel.v2i2.2368

Abstract

Gravity method is a passive geophysical method that provides information on the distribution of rock density below the surface. The gravity method has a weakness at the level of ambiguity in determining the depth of the anomaly. This study aims to determine the depth of the anomaly using Continuous Wavelet Transform (CWT) analysis to overcome the value of ambiguity, so that the results obtained have a high degree of accuracy. The research method is data survey / acquisition and data analysis. This research was conducted in Karangsambung Kebumen, Central Java with the acquisition of gravitational data as many as 56 measurement points. The results of data acquisition then analyzed included reading to mGal, tool height correction, drift, tides, latitude, free air correction, Bouguer correction, and field correction. The results of this correction obtained Complete Bouguer Anomalies (ABL) values which were then reduced to flat fields and regional-residual anomaly filters. The next step is CWT analysis by making incisions on residual anomaly maps. The results showed that the source of the anomaly was between ± 39.2 - 122.9 meters.
Analisis struktur batuan di bawah permukaan kompleks arkeologis situs liyangan menggunakan electrical resistivity tomography dan analytic signal geomagnetik Wrego Seno Giamboro; Wahyu Hidayat; Hafiz Hamdalah; Bambang Kuncoro Prasongko; Bonang Surya Utama; Tegar Anandya Fathoni
Jurnal Teras Fisika: Teori, Modeling, dan Aplikasi Fisika Vol 5 No 2 (2022): 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.2022.5.2.6804

Abstract

Situs Liyangan yang berada di lereng Gunung Sindoro merupakan kompleks pemukiman kuno yang dibangun di area basah yang kaya akan tumbuh – tumbuhan, ladang, dan area pesawahan. Investigasi geofisika menggunakan metode Electrical Resistivity Tomography (ERT) dan Analytic Signal Geomagnetic (ASG) dilakukan di daerah penelitian untuk mengetahui struktur batuan di bawah permukaan. Data Electrical Resistivity Tomography (ERT) menunjukkan bangunan arkeologi pada situs Liyangan dibangun di atas batuan dengan tingkat nilai resistivitas rendah (<100 ohm.m) yang diinterpretasikan sebagai endapan alluvial yang memiliki saturasi air yang tinggi. Kedalaman endapan alluvial ini terdeteksi bervariasi antara 3 – 16 meter di bawah permukaan dan terdapat batuan dasar di bawah endapan alluvial ini yang berupa batuan vulkanik Gunung Sindoro. Hasil ini menunjukkan bahwa Situs Liyangan memiliki area yang subur dan kaya akan air sehingga memungkinkan peradaban masa lalu berkembang di sekitar area situs. Beberapa anomali yang diduga sebagai bagunan arkeologi yang terpendam juga terdeteksi pada penampang ERT dengan nilai resistivitas sedang – tinggi (1000-5000 ohm.m). Data ASG menunjukkan daerah Situs Liyangan yang terungkap saat ini memiliki rentang nilai intensitas kemagnetan rendah – sedang ((-55)-4.4nT), sedangankan area dugaan bangunan situs yang masih terpendam memiliki nilai intensitas magnetik tinggi (>22nT). Melalui peta ASG juga didapatkan dua buah struktur patahan berdasarkan nilai kontras intensitas magnetik yang berarah tenggara – barat laut dan timur laut – barat daya
Co-Authors Afriliani M Handini Ananda Achlaqul Karimah Bambang Kuncoro Prasongko Bonang Surya Utama Edoarddo Tobing Hafiz Hamdalah Handini, Afriliani M Indriati Retno Palupi, Indriati Retno Karimah, Ananda Achlaqul Nela Elisa Dwiyanti Ririn Setyowati Ririn Setyowati Tegar Anandya Fathoni Vira Irnanda, Elleona Septi N Wahyu Hidayat Wahyu Hidayat Wiji Raharjo