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All Journal JOURNAL ONLINE OF PHYSICS Jurnal Pengabdian Masyarakat Hutan
Sarwo Sucitra Amin
Universitas Jambi
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Environmental Science Physics Social Sciences

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IDENTIFIKASI KERENTANAN TANAH DAN PERCEPATAN TANAH MENGGUNAKAN METODE MIKROTREMOR DI KAWASAN KAYU ARO BARAT Sefiyanti, Fani; Sucitra Amin, Sarwo; Lucya Resta, Ichy; Hamdi, Husnul; Astuti, Putri; Amalina Fauziyah, Annisa; Fadlan Risky, Khoirul; Lefdiana, Aura; Randa Pranata, Abimbi; Anggia Harahap, Iryuvelamea
JOURNAL ONLINE OF PHYSICS Vol. 10 No. 1 (2024): JOP (Journal Online of Physics) Vol 10 No 1
Publisher : Prodi Fisika FST UNJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jop.v10i1.38193

Abstract

Kabupaten Kerinci, dengan keberadaan Gunung Api aktif, rentan terhadap gempa bumi. Meskipun demikian, kawasan lereng bukit, terutama di Kayu Aro Barat, masih dihuni oleh banyak penduduk. Penelitian ini bertujuan untuk mengidentifikasi potensi kerentanan tanah di wilayah tersebut menggunakan metode mikrotremor. Hasil penelitian menunjukkan adanya variasi kerentanan tanah yang signifikan. Bagian barat laut memiliki kerentanan tanah yang lebih rendah (0,40-0,85), sedangkan bagian tenggara memiliki kerentanan yang lebih tinggi (2,19-2,64). Nilai Peak Ground Acceleration (PGA) maksimum tercatat di bagian tenggara dengan rentang 251-1729 mgal. Temuan ini mengindikasikan bahwa wilayah tenggara Kayu Aro Barat memiliki potensi risiko gempa bumi yang lebih tinggi dibandingkan wilayah lainnya. Meskipun nilai PGA masih berada dalam kategori aman, perlu diingat bahwa aktivitas seismik dapat memicu pergerakan tanah dan longsor, terutama di daerah dengan topografi curam dan kondisi tanah yang labil seperti di Kayu Aro Barat. Oleh karena itu, diperlukan kajian lebih lanjut dan upaya mitigasi risiko untuk melindungi keselamatan masyarakat.
ANALISIS ELEKTROFASIES BERDASARKAN DATA WELL LOGGING DALAM MENENTUKAN LINGKUNGAN PENGENDAPAN BATUBARA DI AREA PT BHUMI SRIWIJAYA PERDANA COAL, MUSI BANYUASIN, SUMATRA SELATAN Setiawan, Rendy Agus; Adhitya, Bagus; Amin, Sarwo Sucitra
JOURNAL ONLINE OF PHYSICS Vol. 10 No. 2 (2025): JOP (Journal Online of Physics) Vol 10 No 2
Publisher : Prodi Fisika FST UNJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jop.v10i2.41957

Abstract

Musi Banyuasin Regency is one of the areas in South Sumatra which has very abundant natural Coal resources. Coal still plays a very important role as a natural resource that is much needed, so it is important to know the aspects of Coal starting from the quality and characteristics of Coal as well as the Coal formation process. So it is necessary to determine the Coal deposition environment. This aims to provide additional information and to determine the characteristics of Coal so that it can provide additional information. In this study, secondary data was used in the form of LAS data files resulting from recording well logging data for 7 wells which were then processed using WellCAD 5.5 software to obtain log sheet results, namely gamma ray logs and density logs, which were then interpreted as subsurface lithology by reading the deflection log curve. From the results of reading the log curve, the lithology in the research area was obtained in the form of mudstone, siltstone, sandstone and Coal. Analyzing the grain size variations of the lithology in the research area using the electrofacies analysis method, it was found that three dominant depositional patterns in the research area were of the Serrated, Cylindrical and Symmetrical types when compared with Horne calcification. As well as Levee in hard rock, clay. And from the facies analysis it can be identified that the research area is a Delta depositional environment in the Upper Delta Plain-Fluvial zone.
ANALISIS KERENTANAN TANAH FAKULTAS SAINS DAN TEKNOLOGI UNIVERSITAS JAMBI DENGAN MENGGUNAKAN DATA MIKROTREMOR Kusuma Dewi, Ira; Lucya Resta, Ichy; Sucitra Amin, Sarwo; Nuklirullah, Nuklirullah; Juventa, Juventa; Situmorang, Salomo; Fitri Ramadhani, Amelia
JOURNAL ONLINE OF PHYSICS Vol. 9 No. 1 (2023): JOP (Journal Online of Physics) Vol 9 No 1
Publisher : Prodi Fisika FST UNJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jop.v9i1.28788

Abstract

Research has been carried out to carry out soil vulnerability analysis at the Faculty of Science and Technology, Jambi University. The construction of buildings at the Faculty of Science and Technology has necessitated an analysis of the vulnerability of the land around the buildings at the Faculty of Science and Technology. Based on the regional geology in this area, the Muara Enim formation (TMPM) is formed in the Tertiary age which is composed of rocks from interbedded tuffaced sandstones with tuffaced mudstones, interbedded quartz sandstones with quartz mudstones, interbedded with coal and iron oxide. The rocks formed in this formation are a type of sedimentary rock. To carry out soil vulnerability analysis, the HVSR method is applied to measure microtremors. Microtremors are a geophysical method that uses very small and continuous ground vibrations. This HVSR method is a passive seismic method using three components, namely 2 horizontal components and 1 vertical component. Microtremor measurements on the ground were carried out at 6 points around the building. The results obtained from microtremor measurements using the HVSR method are the natural frequency (f0), amplification factor (A0) and Seismic Vulnerability Index (Kg). The natural frequency (f0) value ranges from 1.30-1.82 Hz, the amplification factor (A0) value ranges from 1.69 - 3.28 times and the seismic vulnerability index (kg) value ranges from 1.814167 to 5.948834 x 10^-6 s^2/cm. Based on the Kanai classification, a frequency value < 2.5 HZ includes soil type IV and soil type II with Alluvial Rock lithology formed from delta sedimentation, top soil, mud. With a depth of 30 meters or more. This area has a very thick surface sediment, more than 30 meters. Based on the classification according to Setiawan, the amlification factor is classified as low (A0<3) to medium (3<A0<6). A low to moderate amplification factor indicates that the rock that makes it up is compact/hard. Based on the Refrizon Classification, the Seismic Vulnerability Index value is in the low (kg<3) to medium (3<kg<6) category. The seismic vulnerability index is low to medium, meaning that if a shock occurs there will be no damage because the vulnerability value is medium - low. Based on these three parameters, it can be concluded that the land around the FST building is still classified as safe from shocks.
SURVEI SEBARAN POTENSI AQUIFER MENGGUNAKAN METODE GEOLISTRIK KONFIGURASI SCLUMBERGER DI DESA BUNGKU KECAMATAN BAJUBANG KABUPATEN BATANGHARI Dinata, Irfan perastya; Januardi, Januardi; Nursafitri, Dian; Akbar, Taufik; Farhan Fatoni, Ahmad; Arliano Satya Ongko, Jason; Kusuma Dewi, Ira; Sucitra Amin, Sarwo
JOURNAL ONLINE OF PHYSICS Vol. 9 No. 3 (2024): JOP (Journal Online of Physics) Vol 9 No 3
Publisher : Prodi Fisika FST UNJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jop.v9i3.34060

Abstract

Di Desa Bungku sulit mendapatkan sumber air bersih untuk kelangsungan aktivitas masyarakat di desa yang menggunakan air permukaan (sungai), namun ketika musim kemarau tiba, air sungai mengering sehingga tidak mampu menyediakan air bersih. cadangan air. Tak hanya kuantitas, kualitas air juga mengalami perubahan. Kualitas air dilaporkan telah menurun secara signifikan selama dekade terakhir. Di Desa Bungku juga banyak terdapat ladang minyak, salah satunya adalah ladang minyak milik Pertamina. Keberadaan ladang minyak ini sedikit banyak berdampak pada kualitas air tanah, salah satunya air yang berasal dari sumur warga berbau dan berminyak. Menggunakan metode geolistrik dengan konfigurasi Schlumberger. Berdasarkan hasil interpretasi daerah penelitian, lapisan akuifer yang teridentifikasi pada lapisan batupasir berada pada kedalaman 56,8 m – 101 m. Litologi daerah penelitian terdiri atas tanah pucuk, batulempung, batulempung berpasir, batulanau, dan batupasir. Lapisan akuifer terdapat pada lapisan batupasir, dengan kedalaman 56,8 m – 101m dengan tipe akuifer semi tertekan. Pengukuran dilakukan di sepanjang pemukiman masyarakat Desa Bungku dengan sebaran akuifer relatif sama, yaitu pola akuifer semakin menipis dari timur ke barat.Top of Form  
Optimalisasi Potensi Air Tanah Sebagai Sumber Daya Berkelanjutan Untuk Mendukung Kegiatan Sosial-Ekonomi Masyarakat Di Desa Tantan Kecamatan Sekernan, Kabupaten Muaro Jambi Arista Yulanda, Yudi; Sucitra Amin, Sarwo; Heltria, Septy; Nahlunnisa, Hafizah; Dinanty, Fawwaz; Abel Azzahra; Meta Dinda Pangaribuan
Jurnal Pengabdian Masyarakat Hutan Vol 3 No 2 (2025): Jurnal Pengabdian Masyarakat Hutan
Publisher : Program Studi Kehutanan, Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/962kyw27

Abstract

Air bersih merupakan kebutuhan dasar yang sangat penting, namun ketersediaannya masih menjadi permasalahan serius di wilayah pedesaan, termasuk Desa Tantan, Kecamatan Sekernan, Kabupaten Muaro Jambi. Desa ini belum mendapatkan layanan PDAM dan masyarakat masih bergantung pada sumur gali yang kerap mengalami kekeringan serta kualitas air yang kurang layak.egiatan pengabdian ini bertujuan untuk mengidentifikasi potensi kedalaman air tanah menggunakan metode geolistrik konfigurasi Schlumberger. Pelaksanaan dilakukan melalui tiga tahap, yaitu persiapan (survei awal dan koordinasi dengan mitra), pelaksanaan (pengambilan data geolistrik serta diskusi dengan masyarakat), dan tindak lanjut (sosialisasi hasil, pendampingan, dan penyusunan peta potensi air tanah). Efektivitas sosialisasi diukur menggunakan analisis N-gain melalui pretest dan posttest terhadap peserta. Hasil menunjukkan rata-rata pemahaman masyarakat meningkat dari kategori rendah menjadi sedang hingga tinggi, dengan nilai rata-rata N-gain sebesar 0,517 (kategori sedang). kegiatan menghasilkan peta kedalaman air tanah sebagai dasar pembangunan sumur bor produktif, dan juga memperkuat kemandirian desa dalam mengelola sumber daya air untuk mendukung kebutuhan sosial-ekonomi secara berkelanjutan. Kata Kunci: air bersih, metode geolistrik, akuifer, N-gain, Desa Tantan
Co-Authors Abel Azzahra Adhitya, Bagus Amalina Fauziyah, Annisa Anggia Harahap, Iryuvelamea Arista Yulanda, Yudi Arliano Satya Ongko, Jason Astuti, Putri Dinanty, Fawwaz Dinata, Irfan perastya Fadlan Risky, Khoirul Farhan Fatoni, Ahmad Fitri Ramadhani, Amelia Husnul Hamdi, Husnul Januardi Januardi, Januardi Juventa, Juventa kusuma dewi, ira Lefdiana, Aura Meta Dinda Pangaribuan Nahlunnisa, Hafizah Nuklirullah, Nuklirullah Nursafitri, Dian Randa Pranata, Abimbi Resta, Ichy Lucya Sefiyanti, Fani Septy Heltria Setiawan, Rendy Agus Situmorang, Salomo Taufik Akbar