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Volume 8 Number 01 Year 2023

12 articles in this issue 

Reno Arief Rachman, Haryo Dwito Armono, Dinar Catur istiyanto, Khusnul Setia Wardani, Hanah Khoirunnisa, Reni Wijayanti

Numerical modeling of hydrodynamics (HD) around the Tanjung Pasir Waters was carried out using MIKE 21 HD Flexible Mesh software to get the current velocity pattern conditions during the west and east monsoons. This activity is to support the NCICD sea wa... see more

Pags. 1 - 9  

Hasria, Masri, Muhammad Arba Azzaman, Muhamad Jerniawan

The petrogenesis study of ultramafic igneous rocks in the South Konawe Region has been carried out by several previous researchers, however, petrogenesis of ultramafic igneous rocks in the Waturapa Region has never been carried out in detail. This study a... see more

Pags. 10 - 16  

Baso Rezki Maulana, Muhammad Sulhuzair Burhanuddin, Muh. Fikri Akbar

A 7.3 MW earthquake occurred at 11:20 am on December 14, 2021, in the Flores Sea, and the main shake was centered ±100 km north of Maumere, Indonesia, with a depth of 14.3 km, antecedent a landslide. This research consists of two stages, namely: quantitat... see more

Pags. 17 - 26  

Bayu Nugraha, Mohammad Ghozi, Arif Fadillah, Azwar Satrya Muhammad, Teuku Yan Waliyana Muda Iskandarsyah, Nathalie Dörfliger, Valérie Plagnes, Hendarmawan Hendarmawan

Indonesia is located in a subduction zone formed by the collision of continental and oceanic plates. Many volcanoes form as a result of these conditions along the arc. Springs on the volcano's slopes are widely used for domestic, irrigation, and industry ... see more

Pags. 27 - 38  

Dudi Darmawan, Deddy Kurniadi, Suprijanto

A critical issue in electrical tomography is ill-posed problems due to low sensitivity. In the electric current injection method, the placement of the injection electrode on the object boundary can influence it. This condition causes the reconstruction re... see more

Pags. 39 - 43  

A. Bahrul Hidayah, M.Irsan Sadri, Safruddim, M.Rafli , A. Ildha Dwi Puspita

The use of resistivity meters to model subsurface conditions is widespread. However, commercial instruments are mostly limited to conventional configurations, such as Wenner, Schlumberger, and dipole-dipole. Moreover, we cannot modify the program on the i... see more

Pags. 44 - 55  

kuboye Olabaniye, Ngolo Oyedele, Charles Scott

The consequences of these earthquake waves cause damage to buildings ranging from light damage to heavy damage. Dealing with the case, it is necessary to plan and implement earthquake-resistant building structures, especially in high-rise buildings. Anoth... see more

Pags. 56 - 61  

kevin travis, Izzati Nazra, John Thor, William Adam

This study area is administratively located in Parit Indah District, Bukit Raya District, Pekanbaru City, Riau Province. Geographically, the research area is located at coordinates 0° 28' 30.92" N 101° 28' 9.45" E N 0° 27' 25.63" - 101° 29' 47.30" E. The ... see more

Pags. 62 - 69  

Dejan kurlov, Tej Marcovic

Peat soil was categorized as soft soil, which means that the soil is in bad condition and problematic when construction was built on it. It was necessary to increase the carrying capacity of peat soils, one of which is chemical stabilization of the soil, ... see more

Pags. 69 - 76  

Boqin Changming, Liang Longwei

The "RE" well in the "DN" field is an oil well produced in June 2004 with an initial water cut value of 15% as time went on there was a fairly high increase in the water cut value reaching 97% which means that it caused increased water production. and oil... see more

Pags. 77 - 83