Pemodelan Bahaya Tsunami dan Evaluasi Strategi Evakuasi di Tanjung Benoa Bali untuk mendukung upaya Safe-Tourism Bali Kembali

Authors

  • Nuraini Rahma Hanifa Badan Riset dan Inovasi Nasional
  • Nurul Sri Rahatiningtyas
  • Iman Fatchurochman
  • Endra Gunawan Kelompok Keahlian Geofisika Global, Fakultas Teknik Pertambangan dan Perminyakan, Institut Teknologi Bandung
  • Dwi Hartanto
  • Ida Bagus Oka Agastya
  • I Nyoman Putera Indrawan
  • Giovanni Cynthia Pradipta
  • Tomy Gunawan
  • Yogha Mahardikha Putra

DOI:

https://doi.org/10.31172/jmg.v23i1.837

Keywords:

Tsunami, Tanjung Benoa, Jalur Evakuasi, Tempat Evakuasi, Safe-Tourism

Abstract

Salah satu upaya untuk mendorong Bali Kembali dalam era normal baru pasca pandemi Covid-19 yaitu menekan disrupsi dari bencana, diantaranya ancaman gempa dan tsunami. Penelitian ini bertujuan untuk memutakhirkan pemodelan bahaya tsunami, mengevaluasi tempat dan jalur evakuasi, menggali sejauh mana masyarakat dan wisatawan memahami informasi peringatan tsunami dari BMKG dan BNPB, dan perintah evakuasi dari BPBD. Melalui penelitian ini diharapkan dapat memberikan manfaat bagi sektor kesehatan, pariwisata, ekonomi dan sosial budaya secara langsung kepada masyarakat di Provinsi Bali. Penelitian ini meliputi delapan tahap yaitu, 1) identifikasi sumber dan bahaya gempa pemicu tsunami; 2) identifikasi parameter sumber gempa; 3) pemodelan tsunami; 4) survei lapangan; 5) analisis data eksposur; 6) network analysis closest facility, 7) gap analysis, dan 8) analisis pemahaman masyarakat terhadap tsunami dan evakuasi mandiri. Hasil dari penelitian ini menunjukkan bahwa seluruh area Tanjung Benoa memiliki potensi terdampak tsunami. Estimasi tinggi tsunami di sisi Timur berkisar 10-14 m , estimasi tinggi tsunami di sisi Barat berkisar 3-6 m dan estimasi waktu tiba tsunami berkisar 20-25 menit. Hasil penelitian ini mengindikasikan bahwa perlu mempertimbangkan untuk amendemen Peraturan Gubernur, terkait estimasi waktu kedatangan tsunami, yang tertulis 30 menit.  Saat ini terdapat 8 hotel terdistribusi di sepanjang pantai sisi timur sebagai tempat evakuasi. Namun hanya dapat  menampung setengah penduduk, di luar jumlah wisatawan. Sehingga perlu penambahan tempat evakuasi di wilayah Tanjung Benoa, dengan tinggi minimal 20 meter. Mengingat peraturan batas tinggi bangunan di wilayah Bali, maka direkomendasikan adanya pengecualian untuk kasus ini, dan bisa dipertimbangkan adanya Pura di bagian atas dari tempat evakuasi.

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Published

2022-02-18

How to Cite

Hanifa, N. R., Rahatiningtyas, N. S., Fatchurochman, I., Gunawan, E., Hartanto, D., Agastya, I. B. O., Indrawan, I. N. P., Pradipta, G. C., Gunawan, T., & Putra, Y. M. (2022). Pemodelan Bahaya Tsunami dan Evaluasi Strategi Evakuasi di Tanjung Benoa Bali untuk mendukung upaya Safe-Tourism Bali Kembali. Jurnal Meteorologi Dan Geofisika, 23(1), 9–22. https://doi.org/10.31172/jmg.v23i1.837

Issue

Vol. 23 No. 1 (2022)

Section

Article

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