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All Journal Journal of Degraded and Mining Lands Management Jurnal Geosaintek Omega: Jurnal Fisika dan Pendidikan Fisika Jurnal Geocelebes Jurnal Geomine Indonesian Physical Review Jurnal Fisika dan Terapannya Shell Civil Engineering Journal Open Science and Technology Jurnal Geosaintek
Muhammad Fawzy Ismullah Massinai
Departemen Geofisika Fakultas Matematika Dan Ilmu Pengetahuan Alam Universitas Hasanuddin Makassar
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering Physics

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Tipologi Sistem Akuifer Endapan Gunungapi Muhammad Fawzy Ismullah Massinai; Syarifullah Bundang; Muhammad Altin Massinai; Wahyu Hidayat
Jurnal Geomine Vol 7, No 2 (2019): Edisi Agustus 2019
Publisher : Universitas Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1357.968 KB) | DOI: 10.33536/jg.v7i2.346

Abstract

Akuifer merupakan lapisan batuan bawah permukaan yang dapat menyimpan dan meloloskan air. Keberadaan air tanah di daerah endapan gunungapi umumnya pada batuan yang sangat berpori dan tidak kompak, berselang-seling dengan lapisan-lapisan aliran lava yang umumnya kedap air. Salah satu metoda yang digunakan dalam mengidentifikasi lapisan akuifer bawah permukaan adalah metoda geolistrik tahanan jenis. Metoda ini menggunakan prinsip aliran arus listrik yang mengalir di dalam tanah melalui batuan–batuan. Pada penyelidikan geolistrik tahanan jenis konfigurasi Wenner yang dilakukan di Desa Bissoloro, Kecamatan Bungaya, Kabupaten Gowa bertujuan untuk menentukan jenis lapisan, mengidentifikasi posisi sebaran akuifer dan menentukan jenis akuifer. Pada penelitian ini terdapat tiga lintasan pengukuran tahanan jenis mapping dengan panjang setiap lintasan 470 m, jumlah elektroda sebanyak 48 dan spasi tiap elektroda 10 m. Pada daerah penelitian terdapat dua jenis lapisan yaitu lapisan tufa (12.47 – 75 Ωm) diinterpretasikan sebagai lapisan akuifer dan lapisan breksi berselingan lava (76 – 2.203,19 Ωm). Posisi akuifer pada daerah penyelidikan tersebar di setiap lintasan. Jenis akuifer yang ada pada daerah tersebut yaitu akuifer bebas dan akuifer menggantung.
Identifikasi Morfometri Daerah Aliran Sungai Molompar dan Totok, Kabupaten Minahasa Tenggara, Sulawesi Utara, Indonesia: Morphometry Identification on Molompar and Totok Watershed, Southeast Minahasa, North Sulawesi, Indonesia Aulia Puji Astuti; Muhammad Fawzy Ismullah Massinai; Muhammad Altin Massinai; Hasanuddin
Open Science and Technology Vol. 1 No. 1 (2021): Open Science and Technology
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/ost.vol1no1.2021.10

Abstract

Kabupaten Minahasa Tenggara merupakan salah satu daerah berkembang yang memiliki banyak Daerah Aliran Sungai (DAS), diantaranya adalah DAS Molompar dan Totok. Tujuan dilakukannya studi ini adalah untuk mengetahui karakteristik DAS Molompar dan DAS Totok berdasarkan analisis morfometri. Parameter yang digunakan adalah pola pengaliran, luas DAS, rasio lingkaran (circularity ratio), nisbah perpanjangan sungai (elongation ratio), tingkat percabangan sungai (bifurcation ratio), dan kerapatan sungai (drainage density). Penelitian ini menggunakan data Peta Rupa Bumi Indonesia (RBI). Hasil penelitian menunjukkan Kabupaten Minahasa Tenggara memiliki banyak sungai berpola dendritic, trellis, pinnate dan parallel. Luas DAS Molompar 154,12 km2 dan terhitung sebagai sungai berukuran sedang. Luas DAS Totok sebesar 77,84 km2 dan tergolong sebagai sungai berukuran kecil. Rasio lingkaran (Rc) untuk DAS Molompar adalah 0,4673 dan DAS Totok 0,54, sedang untuk nisbah perpanjangan sungai (Re) masing masing adalah 0,14 dan 0,329. Nilai tingkat percabangan sungai (Rb) dan nilai kerapatan sungai (Dd) pada kedua sungai itu rendah. Hasil untuk kedua sungai tersebut mengindikasikan kedua sungai memanjang sehingga waktu konsentrasi air lebih lama dan fluktuasi banjir lebih rendah. Kedua DAS tersebut memiliki relief yang tinggi/ kasar, kemiringan lereng yang curam, berada pada area dengan permeabilitas yang tinggi dan tingkat vegetasi yang rapat. Selain itu, parameter tersebut juga menunjukkan kedua sungai tersebut tidak dipengaruhi oleh struktur geologi. Hasil dari penelitian ini diharapkan mampu menjadi tambahan wawasan dalam pengelolaan DAS tersebut. Southeast Minahasa Regency is one of the developing areas which has many watersheds, including the Molompar and Totok watersheds. The purpose of this study was to determine the characteristics of the Molompar and Totok watersheds based on morphometric analysis. The parameters used are the drainage pattern, the area of the watershed, the circularity ratio, the elongation ratio, the bifurcation ratio, and the drainage density. This research uses Indonesia Topographical map data processing. The results showed that Southeast Minahasa Regency has many rivers with dendritic, trellis, pinnate, and parallel patterns. The area of ??the Molompar watershed is 154.12 km2 and is considered a medium-sized river. The Totok watershed area is 77.84 km2 and is classified as a small river. The circularity ratio for the Molompar watershed is 0.4673 and the Totok watershed is 0.54, while the elongation ratio is 0.14 and 0.329, respectively. The value of the bifurcation ratio and the drainage density (Dd) in the two rivers are low. The results for the two rivers indicate that both rivers are elongated so that the water concentration time is longer and the flood fluctuation is lower. The two watersheds have high/ rough relief, steep slopes, are in areas with high permeability and dense vegetation levels. Besides, these parameters also indicate that the two rivers are not influenced by geological structures. The results of this study are expected to provide additional insight into the management of that watershed in Southeast Minahasa Regency, North Sulawesi Province.
Drainage Patterns and River Sinuosity in Padang, West Sumatra Muhammad Fawzy Ismullah Massinai; Muhammad Altin Massinai; Hasanuddin Hasanuddin; Dewi Shafira
SCEJ (Shell Civil Engineering Journal) Vol 7 No 1 (2022): SCEJ (Shell Civil Engineering Journal)
Publisher : Civil Engineering Faculty, Universitas Muhammadiyah Buton

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35326/scej.v7i1.2660

Abstract

Padang City is the capital of West Sumatra Province. This city has several rivers, each of which is a watershed. Watershed management can be done through geomorphological analysis by taking a landscape approach to finding out the tectonics working in the area. The morphotectonic analysis carried out in this study was an analysis of the drainage pattern and the river's sinuosity. The purpose of this study was to determine the characteristics of the watershed in the Padang City associated with tectonic activity based on morphometric analysis. The parameters used are the drainage pattern and the river sinuosity index. The results of the research that has been carried out, it is found that the genetic types of rivers found in the Padang City, West Sumatra are dendritic, trellis, and parallel types. Meanwhile, after analyzing the average value of the sinuosity index on river flows in Padang City, it was obtained a value of 1.56 or categorized as a meandering river type with active tectonics. The results of this study can be used as new information in watershed management in Padang City, West Sumatra Province.
Subsurface Profile Analysis for Aquifer Layer Identification: Analisis Profil Bawah Permukaan untuk Identifikasi Lapisan Pembawa Air Syarifullah Bundang; Muhammad Fawzy Ismullah Massinai; Firman Firman; Wahyu Hidayat
JURNAL GEOCELEBES Vol. 6 No. 2: October 2022
Publisher : Departemen Geofisika, FMIPA - Universitas Hasanuddin, Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/geocelebes.v6i2.21911

Abstract

Bungaiya village is a village located in Gowa Regency which has volcanic rock lithology with one of the problems faced in volcanic rocks is that the rock porosity is small so that this layer cannot be an aquifer zone. But the water needs needed by the community for agriculture are very large. Geoelectric is a geophysical method that can be used to describe subsurface profiles, especially aquifer layers. The purpose of this study is to interpret using the geoelectric resistivity method, is the Wenner configuration method as many as 2 lines with a length of 470 m and a space of 10 m. The interpretation results on Line 1, there are 3 layers, are volcanic breccia with resistivity values ​​of 85.6 – 2.2013.19 Ωm and depths between 1.2 – 68 m, layer 2 of tuff with resistivity values ​​of 9.82 – 59.68 Ωm, depth of 12 – 76 m and the third layer is a volcanic breccia, resistivity value is 85.6 – 176 Ωm. Line 2 has 2 layers, are the first layer with a depth of 1.2 – 42 m with a resistivity value of 93 – 490.41 Ωm which is a volcanic breccia. The second layer at a depth of 1.2 – 78.8 m with a resistivity value of 30.9 – 77, 67 Ωm is tuff. Layers 1 and 2 show a similar subsurface profile. Based on these results, it can be concluded that the layer that functions as a water-carrying layer is tuff with a resistivity value of 9.82 – 77.67 Ωm.
Land subsidence assessment on karst based on resistivity and geotechnical parameters Muhammad Altin Massinai; Muhammad Fawzy Ismullah Massinai; Erfan Syamsuddin
Journal of Degraded and Mining Lands Management Vol 10, No 2 (2023)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2023.102.4047

Abstract

Karst is geomorphologically composed of limestone. However, limestone is very susceptible to weathering due to the influence of water, which can cause land subsidence. The resistivity method is often used to determine the potential for land subsidence, while geotechnical methods are commonly considered capable of juxtaposing with resistivity methods to support interpretation accuracy. The current research was conducted to determine the potential for land subsidence in the karst area in Lappae, South Sulawesi, Indonesia. The resistivity method utilizes a dipole-dipole configuration, and the geotechnical parameters used are uniformity coefficient, curvature coefficient, water content, shear angle, and cohesion. The results obtained can be classified into northern and southern areas. The classification of these areas is based on the resistivity results, which show very high resistivity values        (> 4800 Ωm) in the southern part. This value is assumed to be a feature of the cave. Caves are predominantly distributed in the southern part. The five geotechnical parameters show that the northern part, which was composed of massive limestone (150-1600 Ωm), is a stable area, though it is highly prone to landslides. As for the southern part, geotechnical parameters suggest that the presence of caves is the primary factor contributing to the very high potential for landslides in this region. These results indicate that, based on the evaluation of this location, it is not feasible for land use. In addition, in spite of the low cost and rapid methods, the combination of these methods shows good results.
Klasifikasi Kedalaman Kejadian Gempa Menggunakan Algoritma K-Means Clustering: Studi Kasus Kejadian Gempa Di Sulawesi Amirin kusmiran; Minarti; Muhammad Fawzy Ismullah Massinai; Ahmad Zarkasi; A. Andira Maharani; Rita Desiani
JFT : Jurnal Fisika dan Terapannya Vol 9 No 2 (2022): DESEMBER
Publisher : Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/jft.v9i2.29198

Abstract

Sulawesi region is one of the region that have complex geologic conditions so that disasters caused by large scale earthquake frequently occur in these region. Depth and magnitude attribute of the earthquake that cause the disasters are investigation using machine learning technique. Longitude, latitude, magnitude, depth attributes are used to depth cluster of the earthquake events in 1970-2022 period. The cluster number have been optimized by Elbow method, and validated by Davies-Bouldin index (DBI). The result is shown that the three cluster is the best cluster than the others, and its Davies-Boludin index is 0.397. Depth of the fist cluster is less than equal to 120 km (shallow earthquake), the second cluster is among 120 km and 350 km (intermediate earthquake), and the third cluster is greater than 350 km (deep earthquake). The cluster visualizations of the earthquakes are revealed that shallow earthquakes with above 5 SR are frequently occurred in shallow depth. Based on results, Sulawesi Region is vulnerable to earthquake hazard, and K-Mean clustering algorithm is successfully to cluster of earthquake depth.
A NON-LINEAR HYPOCENTER LOCALIZATION ALONG THE ACTIVE PALU-KORO FAULT: A CASE STUDY CENTRAL SULAWESI Jayadi, Harsano; Th. Musa, Moh. Dahlan; Rachman, Gazali; Meidji, Icha Untari; Massinai, Muhammad Fawzy Ismullah; Warnana, Dwa Desa
Indonesian Physical Review Vol. 8 No. 2 (2025)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v8i2.418

Abstract

The Central Sulawesi region is prone to earthquakes, as evidenced by its complex geological structure. Several plates and active fault movements in the vicinity cause this situation. One of the active faults that often causes earthquakes is the Palu-Koro active fault. The city of Palu is one of the areas passing through the Palu-Koro fault. The danger of this earthquake occurrence can be ascertained and assessed using a suitable earthquake location. Within the scope of our investigation, we used a non-linear approach to predict the hypocenter site in the vicinity of the Palu-Koro fault that is active. This Method use oct-tree importance sampling algorithm to generate spatial hypocenter locations. Using the AK135 minimal seismic velocity model, we manually re-picked the arrival times of wave P-waves and S-waves arrival timings of 3,852 and 3,690, respectively, collected by 24 BMKG observation sites from January 2011 to December 2015, utilizing the minimal 1D seismic velocity model from AK135. We employed criteria to ascertain the event's location, including a minimum of four stations exhibiting a distinct beginning of P and S wave arrivals, with a magnitude of at least 3Mw and an average depth ranging from 10 to 20 km. The outcomes of seismic event location identification exhibit improved clustering with inversion, revealing a zero-centered Gaussian distribution, where more time discrepancies, both positive and negative, correspond to increased estimating mistakes. According to this research, the Palu-Koro active fault line's primary shallow seismic zone is the most prominent feature in the area and confirms the existence of active land faults that cause earthquake events by conducting a process of determining a locally updated 1D velocity model that will be used to determine a more precise relocation of the hypocenter used to interpret the subsurface model of the research area.
Penentuan Arah Tegasan Pembentuk Kekar Menggunakan Diagram Rosette (Studi Kasus Daerah Pattongtongan, Sulawesi Selatan) Jariah, Dewi Ainun; Luthfia, Ismira; S, Nurita Dwi Puspita; Syam, Muh. Rexy; Frindy R, Deviana; Hamdah, Hanifah; Pertiwi K, Nuraisyiah; Rahman, Muh. Fazlur; Maesalangi, William; Massinai, Muhammad Altin; Massinai, Muhammad Fawzy Ismullah
Jurnal Geosaintek Vol. 5 No. 1 (2019)
Publisher : Institut Teknologi Sepuluh Nopember

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

Abstract

Struktur geologi adalah gambaran bentuk arsitektur batuan penyusunan kerak bumi akibat sedimentasi dan deformasi. Dalam melakukan identifikasi geologi suatu wilayah, salah satu faktor utama yang harus dipertimbangkan adalah struktur geologi, yang umumnya mengacu kepada data-data primer berupa data observasi lapangan maupun data sekunder. Penelitian yang dilakukan di Desa Pattontongan Kecamatan Mandai Kabupaten Maros Sulawesi Selatan ini mengkhususkan pada penentuan arah tegasan utama di daerah tersebut. Penelitian ini menggunakan data lapangan berupa data strike dan data dip. Penentuan arah tegasan dengan analisis kekar menggunakan analisa Diagram Rosette. Hasil yang didapatkan berupa arah tegasan maksimum berarah timur laut-barat daya. Hal ini disebabkan proses pembentukan kekar pada Desa Pattongtongan dipengaruhi proses vulkanisme pada pembentukan Formasi Camba.
Co-Authors A. Andira Maharani Agung Hasan Agung Hasan Ahmad Zarkasi Amirin Kusmiran Arif Wijaya Aulia Puji Astuti Aulia Puji Astuti De Leonard Pasteur Simanjorang Debby Rahayu Deviana Frindy R Dewi Ainun Jariah Dewi Shafira Dwa Desa Warnana Erfan Syamsuddin Erfan Syamsuddin Ervin Budi Sanjaya Firman Firman Frindy R, Deviana Hamdah, Hanifah Hanifah Hamdah Harsano Jayadi Hasanuddin Hasanuddin Hasanuddin Islamiah Nursalim Ismira Luthfia Jamaluddin Jamaluddin Jamaluddin Jamaluddin Jamaluddin Jamaluddin Jariah, Dewi Ainun Luthfia, Ismira Maesalangi, William Massinai, Muhammad Altin Massinai, Muhammad Altin Meidji, Icha Untari Minarti Minarti Moh Dahlan Th Musa Mufly Fadla Syihab Muh Resky Ariansyah Muhammad Altin Massinai Muhammad Altin Massinai Muhammad Altin Massinai Muhammad Altin Massinai Muhammad Altin Massinai Muhammad Altin Massinai Muhammad Azhari Ramlan Muhammad Fazlur Rahman Muhammad Resky Ariansyah Muhammad Rexy Syam Nur Lailiah Karepesina Nurainun Sholihat Arifuddin Nuraisyiah Pertiwi Kamsir Nurita Dwi Puspita S Nurita Dwi Puspitasari Pertiwi K, Nuraisyiah Prasetyawati Umar, Emi Rachman, Gazali Rahman, Muh. Fazlur Rita Desiani Romuald Sohores S, Nurita Dwi Puspita Saaduddin Saaduddin Sadilah Sadilah Syam, Muh. Rexy Syarifullah Bundang Virman, . Wahyu Hidayat Wahyu Hidayat William Maesalangi