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Analisis Variasi Temporal Magnitude of Completeness (Mc) dan b-value di Wilayah Bali-Nusa Tenggara Tahun 2017-2023

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I Gusti Ketut Satria Bunaga , Ein Nuzulul Laily , Chadek Dimas Rakadhio Anggoro , Kautsar Nafi , Izza Mitha Ariyani , Cahyo Nugroho

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2025-08-30 — Diperbaharui pada 2025-08-30

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Vol 6 No 3 (2025): Agustus

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Abstrak

Abstract: Penelitian ini menganalisis variasi temporal magnitude of completeness (Mc) dan b-value di wilayah Bali–Nusa Tenggara selama periode 2017–2023. Estimasi Mc dilakukan menggunakan metode Maximum Curvature (MAXC), sedangkan b-value dihitung dengan pendekatan Maximum Likelihood Estimation (MLE). Hasil menunjukkan bahwa nilai Mc dan b-value berfluktuasi dari tahun ke tahun, seiring dengan peningkatan jumlah dan distribusi sensor seismik. Nilai Mc cenderung menurun setelah 2019, menunjukkan peningkatan sensitivitas sistem pemantauan. Sementara itu, variasi b-value mencerminkan perubahan kondisi tegangan di kerak bumi. Temuan ini diharapkan berkontribusi pada pengembangan model bahaya gempa bumi dan strategi mitigasi di wilayah Bali – Nusa Tenggara kedepannya. Keywords: Mc, b-value, Bali-Nusa Tenggara, MAXC, MLE, gempabumi

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Analisis Variasi Temporal Magnitude of Completeness (Mc) dan b-value di Wilayah Bali-Nusa Tenggara Tahun 2017-2023

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