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All Journal Proceedings of Malikussaleh International Conference on Multidisciplinary Studies (MICoMS)
Ahmad Nayan
Mechanical Engineering Study Program, Faculty of Engineering, Malikussaleh University, Lhokseumawe, Indonesia
Engineering Environmental Science Physics

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Builder's Competency Improvement About Simple Earthquake Resistant Houses in Blang Pulo Village, Lhokseumawe City Sofyan; Ahmad Nayan; David Sarana; Jordan; Rahmad
Proceedings of Malikussaleh International Conference on Multidisciplinary Studies (MICoMS) Vol. 3 (2022): Proceedings of Malikussaleh International Conference on Multidisciplinary Studies (MI
Publisher : LPPM Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/micoms.v3i.219

Abstract

The Indonesian region has a very high seismic intensity. Its geographic location is on three active tectonic plates, namely Indo Australia, Eurasia and the Pacific and is part of the circum Pacific belt, a series of volcanoes (ring of fire) that reaches 40,000 km in length, causing Indonesia to be frequently hit by tectonic earthquakes and volcanic eruptions. . Incident after incident seemed to alternately hit various regions in Indonesia. An earthquake with a magnitude of 9.1 on the Richter scale followed by a tsunami wave devastated the Aceh region in 2004. Another major earthquake occurred in Jokjakarta in 2006, which was followed by dozens of earthquakes in various regions in Indonesia. The most recent event was an earthquake with a magnitude of 6, 6 on the Richter scale in Banten on January 14 2022 which is reported to have damaged more than 3000 buildings. Simple houses are the group of buildings that most often experience collapse, heavy damage and minor damage. This community service activity will try to improve the ability of builders in five villages around the Malikussaleh University campus on simple earthquake-resistant housing technology. Efforts to increase these competencies will be carried out through theoretical explanations using examples and drawings, which will then be followed up with direct practice of making key components that have a major influence on the ability of buildings to withstand earthquake loads.
Analysis Of Liquifaction Potential Using The Method Microzonation in Coastal Zone at North Aceh District Deassy Siska; Ahmad Nayan; Sofyan Sofyan; M. Fauzan; Mukhlis Mukhlis
Proceedings of Malikussaleh International Conference on Multidisciplinary Studies (MICoMS) Vol. 3 (2022): Proceedings of Malikussaleh International Conference on Multidisciplinary Studies (MI
Publisher : LPPM Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/micoms.v3i.240

Abstract

Liquefaction is a natural phenomenon that occurs when previously sandy soil turns into mush as a result of an earthquake and has the potential to become a natural disaster if not anticipated early. the coastal zone of Dewantara District is included in the earthquake-prone area (referring to the results of previous studies, the value of the seismic vulnerability index is between 0.41 to 18.3 Kg, with the potential for damage caused to be medium and high risk) because most of the area is an area that has alluvial plains a wide beach and located on a tectonic route so that it is estimated that there is a potential follow-up threat after an earthquake occurs, in the form of liquefaction. Determination of the distribution of liquefaction potential due to earthquakes is determined based on data obtained from microtremor measurements. The specific objective of this study is to provide information regarding the potential and vulnerability of liquefaction to Policy Makers/Local Governments in evaluating plotting areas and/or preparing regional spatial plans based on disaster risk reduction/mitigation aspects. Based on the results of the processed data analysis, several important conclusions can be identified in this study. The character of soil vulnerability is related to the value of dominant frequency (f0), soil amplification (A0), and seismic vulnerability index (seismic vulnerability index). This relationship can be used to formulate whether an area has the potential to experience lateral ground motion (liquefaction) which potentially can affect the coastal area of ​​Dewantara District. Based on microseismic data analysis (standard deviation), several disaster-prone zone points were obtained in the north and east of the measurement point. In detail, this is shown by the map of the distribution of SVI values ​​in the Coastal Area which is in the range of 20-100, especially in the north it is at a value above 75, which allows for a higher chance of liquefaction on the condition that there are major earthquakes accompanied by with rock pores filled with fluid.
Co-Authors David Sarana Deassy Siska Jordan M. Fauzan Mukhlis Mukhlis Rahmad Sofyan Sofyan Sofyan