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Pemetaan Zona Kerawanan Tsunami Berbasis GIS Sebagai Langkah Strategis Dalam Mitigasi Di Wilayah Pesisir Kabupaten Malang Muhammad Nurul Huda; Nur Kahfi Mukhlisin Anwar; Solihan
Jurnal Geografi, Edukasi dan Lingkungan (JGEL) Vol. 10 No. 1 (2026): Edisi Bulan Januari
Publisher : Pendidikan Geografi Universitas Muhammadiyah Prof. Dr. Hamka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22236/jgel.v10i1.18103

Abstract

Kabupaten Malang berada di kawasan pesisir selatan Jawa yang berhadapan langsung dengan Samudra Hindia dan dipengaruhi aktivitas subduksi Lempeng Indo-Australia terhadap Lempeng Eurasia. Kondisi ini menjadikan wilayah tersebut termasuk dalam zona rawan tsunami yang memerlukan analisis kerawanan secara spasial. Penelitian ini bertujuan memetakan tingkat kerawanan tsunami serta menyusun arahan mitigasi berbasis data geospasial. Metode penelitian menggunakan pendekatan sistem informasi geografis (SIG) dengan pemanfaatan data Digital Elevation Model Nasional (DEMNAS) dan citra Sentinel-2A. Empat parameter yang dianalisis mencakup elevasi, kemiringan lereng, jarak terhadap sungai, dan jarak terhadap garis pantai. Setiap parameter diolah menggunakan metode scoring–weighting untuk menghasilkan peta zonasi kerawanan. Hasil pemetaan menunjukkan bahwa zona sangat rawan tersebar di Kecamatan Sumbermanjing Wetan, Gedangan, dan Bantur. Karakteristik wilayah pada zona tersebut didominasi bentuk lahan datar dengan elevasi di bawah sepuluh meter dan jarak pantai kurang dari lima ratus meter. Analisis spasial ini menjadi dasar dalam penentuan wilayah prioritas mitigasi tsunami di Kabupaten Malang, mencakup penguatan infrastruktur pelindung, penataan jalur evakuasi, serta pengelolaan ekosistem pantai.
GIS-BASED ANALYSIS OF SENIOR AND VOCATIONAL HIGH SCHOOL DISTRIBUTION PATTERNS IN KEPULAUAN YAPEN REGENCY Muhammad Nurul Huda; Rafi Sulthan Rizqullah; Shalsabilla Aulia Putri; Nisrina Gina Rahma; Nasywa Cinta Az Zahrah; Nur Kahfi Mukhlisin Anwar
Jurnal Intelek Insan Cendikia Vol. 3 No. 1 (2026): JANUARI 2026
Publisher : PT. Intelek Cendikiawan Nusantara

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

Abstract

This study examines how Senior High Schools (SMA) and Vocational High Schools (SMK) are distributed across Kepulauan Yapen Regency using Geographic Information Systems (GIS). School location data were taken from the Ministry of Education and verified through Google Maps, while administrative maps were obtained from the Geospatial Information Agency (BIG). Spatial analysis was carried out in ArcGIS Pro using the Average Nearest Neighbor (ANN), Mean Center, Standard Distance, and Standard Deviational Ellipse tools. The results show that the observed mean distance between schools is smaller than the expected mean distance, with a nearest-neighbor ratio of 0.779877, a z-score of −1.975184, and a p-value of 0.048247. These figures indicate that the distribution pattern is clustered at the 95% confidence level. The analysis also shows that most schools are concentrated along the southern coastal area, particularly around Serui in Yapen Selatan District, while the northern and outer island areas have fewer facilities and wider spacing between them. This shows that students in remote areas face relatively limited access to upper secondary education.