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Comparative Study of Seismic Hazard Analysis Using Classical PSHA and PSHA Method in Java Island, Indonesia Goro , Garup Lambang; Irsyam, Masyhur; Meilano, Irwan; Asrurifak, M.
Indonesian Journal on Geoscience Vol. 11 No. 3 (2024)
Publisher : Geological Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17014/ijog.11.3.349-363

Abstract

In general, seismic hazard analysis is conducted using a probabilistic approach (PSHA), whilst seismic risk analysis is computed using a stochastic approach. To figur out more differences between the two methods, a comparative study of those two approaches needs to be conducted. The study was conducted in Java Island which is the most populated island in Indonesia, and prone to earthquakes, particularly in the southern part due to the subduction of the Australian Plate and many active shallow faults along the island. To find out whether the hazards occurred in the risk analysis were closer to the results of Classical PSHA, it is necessary to examine the comparison of the two methods. The difference between the Event-Based and Classical methods is the use of a synthetic catalog that depends on the input value of SES (Stochastic Event Set). The research began with hazard computation with both methods, where the Event-Based PSHA method was given varying SES values. Determining the SES value in the Event-Based method is an important stage to conduct as a significant input parameter in a risk analysis, particularly the loss analysis. The comparison results conclude that the Event-Based PSHA with SES= 200,000 produced a wellconfirmed hazard map compared to the Classical PSHA result with the smallest standard deviation and variation, i.e. 0.0172 and 0.0003 respectively.
The Potential of the Land Value Capture Scheme in the Perspective of Disaster Risk Funding Handayani, Alfita Puspa; Hanif, Alifah; Meilano, Irwan
International Journal of Disaster Management Vol 6, No 1 (2023)
Publisher : TDMRC, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/ijdm.v6i1.31740

Abstract

Disaster risk refers to the possibility of a loss of life, assets, health, and livelihoods to the community in the future, so it must be reduced, one of which is by implementing disaster risk management. The disaster risk management financing scheme is crucial considering the number of funds needed. This research serves as an initial exploration into alternative funding options by investigating the potential benefits of implementing the Land Value Capture (LVC) scheme. The driving question of this study focuses on the advantages of employing the land value capture concept for disaster risk funding. To address this question, a descriptive qualitative research methodology is employed, encompassing an analysis of LVC in general, a funding analysis for disaster risk management, and the implementation of LVC for disaster risk reduction specifically in Indonesia. The findings of this study reveal that the Land Value Capture (LVC) scheme can serve as an additional strategy for funding disaster risk management in Indonesia. Through the proposed framework, the integration of LVC with disaster risk financing and insurance is facilitated.
Design of Object Detection System for Tangkuban Parahu Volcano Monitoring Application Evita, Maria; Mustikawati, Sekar Tanjung; Srigutomo, Wahyu; Meilano, Irwan; Djamal, Mitra
Journal of Engineering and Technological Sciences Vol. 56 No. 5 (2024)
Publisher : Directorate for Research and Community Services, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.eng.technol.sci.2024.56.5.3

Abstract

Indonesia has 127 active volcanoes, which have to be monitored continuously in normal, eruption, or after-eruption conditions, to minimize the effects of disaster. Therefore, we have developed a four-wheeled mobile robot for both exploration and monitoring of volcanoes. To finish its mission on uneven terrain full of obstacles, the robot should be able to detect and avoid these obstacles. Therefore, real-time object detection was designed using the YOLOv5s deep learning algorithm, which was implemented on a Raspberry Pi3 for the front camera of the robot. Before it was tested on a real volcano, the model of the algorithm was trained to be able to detect obstacles. The dataset was trained with three variations of epochs (100, 300, and 500) in sixteen batches of YOLOv5s. The last variant yielded the best results, at 63.4% mAP_0.5 and 40.4% mAP_0.5:0.95, with almost zero loss. This model was then implemented on a Raspberry Pi3 to detect trees and rocks captured by camera on Tangkuban Parahu Volcano. Most of the trees and rocks were successfully detected, with 90.9% recall, 79.9% precision, and 91.5% accuracy. Furthermore, the detection error was low, as indicated by low FP and FN numbers.
Community-based Landscape Planning in Kampong Batu Lonceng within Lembang Faults Mitigation Framework Rani, Medria Shekar; Faisal, Budi; Dahlan, Mohammad Zaini; Martokusumo, Widjaja; Purwaningsih, Rr Diah Asih; Rahmy, Widyastri Atsary; Binta, Izaza; Pamumpuni, Astyka; Meilano, Irwan; Kobayashi, Hirohide; Shibata, Shozo
Jurnal Lanskap Indonesia Vol. 17 No. 2 (2025): Jurnal Lanskap Indonesia
Publisher : http://arl-faperta.ipb.ac.id/

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jli.v17i2.62922

Abstract

Lembang Fault is one of the active faults produced by the subducted Indo-Australian plate beneath the Eurasian plate along Java Island. It has a high potential for hazard due to its proximity to densely populated areas, including Kampong Batu Lonceng, located approximately 150 meters from the fault. This paper explores the interplay between philosophical beliefs, emotional attachment to the land, natural hazards, land availability for relocation, and applicable regulations in Kampong Batu Lonceng. A three-phase landscape planning regarding the Kampong settlement disaster mitigation was proposed based on data collected from the community stakeholders through field surveys, initial interviews, and discussion. The first phase proposed that the community stays in the existing area with minor preventive developments. The second phase proposed that the community moves across the river and move further to a new, safer location in the third phase. The first phase is the most reasonable since the community does not have to move to another location but needs to revitalize the forest. The second and third phases can only be pursued when the community understands the potential disaster of the fault. Moreover, the third phase requires that the government provide a safer zone for the community to relocate. Another discussion with the community stakeholders shows an agreement towards the first and the third phases and a reluctance over the second phase. However, although many regulations have already taken place formally, enforcing them towards implementation in a traditional community needs to be handled very carefully.
Co-Authors A. D. Wirakusumah A. D. Wirakusumah Achmad Faris Agidia L. Tiaratama Agung Syetiawan, Agung Alfita Puspa Handayani Alfita Puspa Handayani Alifah Hanif Aprizon Putra Ari Setiawan Bagoes Dwi Ramdhani Binta, Izaza Budi Parjanto D. Darmawan D. Darmawan Dahlan, Mohammad Zaini Danny Hilman Natawidjaja Danny Hilman Natawidjaja Dina A. Sarsito Dina A. Sarsito, Dina Dina Anggraeni Dina Anggraeni Sarsito Dina Anggraeni Sarsito Dina Anggraeni Sarsito, Dina Dina Anggreni Sarsito Dina Sarsito Dudy D. Wijaya Dudy Darmawan Wijaya Dudy Darmawan Wijaya, Dudy Dwi Arini Endra Gunawan Estu Kriswati Evita, Maria F. Kimata F. Kimata Faisal, Budi Gina Andriyani Goro , Garup Lambang H. Andreas H. Andreas Hadi Sofyan Hanif, Alifah Hanny Hafiar Hasanuddin Z. Abidin Hasanuddin Z. Abidin Hasanuddin Z. Abidin Hasanuddin Z. Abidin Hasanuddin Z. Abidin, Hasanuddin Hendra Gunawan Henri Kuncoro Heri Andreas Heri Andreas Herlan Darmawan I Gst Ngr Yoga Jayantara Ilham Jamel Ilham Jamel, Ilham Imam Suyanto Intan H Fitri Irwan Gumilar, Irwan Irzaman, Irzaman Jayawarsa, A.A. Ketut Joni Efendi Joni Efendi, Joni Kobayashi, Hirohide Kosasih Prijatna Kosasih Prijatna, Kosasih Kumalasari, Ratih Kuncoro, Henri M. A. Kusuma M. A. Kusuma M. A. Purbawinata M. A. Purbawinata M. Asrurifak, M. M. Gamal M. Gamal M. Hendrasto M. Hendrasto Maria Evita Marta Nugraha Hidayat Masyhur Irsyam Mitra Djamal Moehammad Awaluddin Moh Yasin Mustikawati, Sekar Tanjung Nia Naelul Hasanah Nina Siti Aminah Nita Yuanita Ony K. Sugandar Ony K. Sugandar Pahlevi, Arisauna Maulidyan Pamumpuni, Astyka Prijatna, Kosasih Purwaningsih, Rr Diah Asih Putra Maulida Putra, Heriansyah Rahmy, Widyastri Atsary Ramdhani, Bagoes Dwi Rani, Medria Shekar RATIH KUMALASARI Ratih Kumalasari Retna Apsari Riko Maiyudi Rino Rino Rino Rino Roka Pratama S. Susilo Sarah Leila Hanief Sarah Leila Hanief, Sarah Sarsito, Dina Semeidi Husrin Shibata, Shozo Sofian, Ibnu Sri Widiyantoro Suchi Rahmadani Suryanto, Wiwit Susilo Susilo Susilo Susilo Sutomo Kahar Tanuwijaya, Zamzam Akhmad Jamaluddin Teriyuki Kato Wahyu Srigutomo Wahyudi Wahyudi Widjaja Martokusumo, Widjaja