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All Journal Jurnal Matematika Jupiter Jurnal Manajemen dan Bisnis Sriwijaya Science and Technology Indonesia Jurnal Matematika Sains dan Teknologi Jurnal Informatika Global Diseminasi : Jurnal Pengabdian kepada Masyarakat JUSTIN (Jurnal Sistem dan Teknologi Informasi) Jurnal Pengabdian Multidisiplin Kurnia Mengabdi (jurnal Pengabdian Kepada Masyarakat)
Hartati
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Probabilistic Earthquake Hazard Assessment in Indonesia Using Poisson Model and Spatial Grid Analysis Hartati; Effendie, Adhitya Ronnie; Susyanto, Nanang; Suryanto, Wiwit
Science and Technology Indonesia Vol. 11 No. 1 (2026): January
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2026.11.1.207-216

Abstract

Indonesia, located at the convergence of three major tectonic plates in the Pacific Ring of Fire (ROF), is highly susceptible to earthquakes. This study analyzes earthquake hazard in Indonesia using a statistical approach based on the Poisson distribution combined with spatial mapping through a 0.5o x 0.5o grid. Earthquake  data from the USGS catalog (1925–2025), including time, location, depth, and magnitude, were analyzed. Annual earthquake frequencies were calculated for each grid cell with magnitude ≥ 5.0, and the probability of at least one event occurring within 10, 25, and 50 years was estimated using the Poisson probability function. Results were visualized as spatial probability risk maps for 10-, 25-, and 50-year horizons, enabling the identification of earthquake-prone areas and classification of risk levels. The findings reveal that subduction zones, particularly along the Sunda Arc, exhibit probabilities exceeding 90% for M≥ 5 events within the next 50 years, highlighting their significance for disaster preparedness. These results demonstrate that a Poisson-based statistical and spatial approach is effective for probabilistic earthquake hazard mapping and provides direct support for disaster risk reduction and spatial planning in Indonesia.
Implementasi Teknologi Tepat Guna Cookies Sambung Nyawa (Gynura procumbens) untuk Pemberdayaan PKK Sidomulyo, Pengasih, Kulon Progo, Yogyakarta Whika Febria Dewatisari; Andina Setyawati; Nuurhidayat Jafar; Dwi Riyanti; Dhimas Setyo Nugroho; Suyatno; Dyah Paminta Rahayu; Putri Cahaya Situmorang; Hartati
Kurnia Mengabdi: Jurnal Pengabdian kepada Masyarakat Vol. 3 No. 2 (2026): Kurnia Mengabdi: Jurnal Pengabdian kepada Masyarakat
Publisher : CV. Kurnia Grup

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61476/j40wcp06

Abstract

In Indonesia, the rising prevalence of diabetes has been accompanied by an increased risk of complications, adversely affecting quality of life and imposing a substantial economic burden on households. The development of functional food innovations based on locally available medicinal plants represents a promising strategy to support the prevention of diabetes-related complications while simultaneously strengthening community economic resilience. Gynura procumbens (sambung nyawa) is recognized for its bioactive potential, particularly in supporting glycemic control and wound-healing processes under diabetic conditions. This community engagement program aimed to implement appropriate technology for processing G. procumbens into functional cookies while strengthening women’s capacity through the Family Welfare Empowerment (PKK) group. The program was conducted in Sidomulyo Village, Kulon Progo Regency, using a Participatory Community Empowerment approach comprising health education, demonstrations and hands-on production, the application of household-scale processing equipment, and initial mentoring. A total of 40 PKK members participated and were divided into five groups. Participants were actively involved in ingredient weighing, dough preparation, shaping, baking, and product evaluation under the guidance of professional chefs. All groups successfully produced functional cookies, while the community partner received production support consisting of five ovens, mixers, digital scales, baking trays, and aprons. The program demonstrates that research downstreaming can be effectively translated into practical skills based on local resources, with the potential to generate value-added functional food products and serve as an initial platform for developing productive PKK-led microenterprises. The cookie formulation used modified cassava flour (MOCAF), a fermented cassava flour, as the flour base because cassava is readily available in Kulon Progo.
Co-Authors Adhitya Ronnie Effendie, Adhitya Ronnie Alpin Herman Saputra Andina Setyawati Aslamia Rosa Bonita Hirza Daiana, Mustika Dessy Yunita Dhamayanti Dhimas Setyo Nugroho Diana, Mustika Dyah Paminta Rahayu Ervina Mukharomah EVI YULIANTI Hermansyah Hermansyah Iisnawati, Iisnawati Imelda Saluza, Imelda Kushendar Kushendar, Kushendar Lastri Widya Astuti Makmum, Muh Ngali Zainal Mohammad Taufikurrahman Nuurhidayat Jafar Putri Cahaya Situmorang Rahmawati, Rahmawati Riyanti, Dwi Saputra, Alpin H. Steven ANTHONY Suryanto, Wiwit Susyanto, Nanang Suyatno Teguh Teguh Teguh Teguh Whika Febria Dewatisari, Whika Febria