Peak Ground Acceleration (PGA) Analysis for Eathquake Risk Mitigation in IKN Area, Sepaku Sub-Distric, East Kalimantan
Keywords:
PGA, HVSR, Kanai Metod, IKN, Earthquake
Abstract
This study examines the distribution of Peak Ground Acceleration (PGA) in the Ibu Kota Nusantara (IKN) development area, Sepaku Sub-District, East Kalimantan, an area with relatively low seismic activity compared to other parts of Indonesia. However, earthquake risks remain a concern due to the planned relocation of Indonesia's capital. Using the Kanai approach and seismic data from microtremor measurements and two significant earthquakes (Paser Regency, 2022, and Palu, 2018), PGA values ranged from 0.69 gal to 34.29 gal. The results show that the 4.5 magnitude Paser earthquake produced PGA values between 0.69 and 3.17 gal (average 1.8 gal), placing most areas in the low-risk zone. In contrast, the distant 7.2 magnitude Palu earthquake generated PGA values between 2.9 and 34.29 gal (average 15.6 gal), placing several areas in the moderate-risk zone. These findings underscore the significant impact of earthquake magnitude on PGA, with larger, more distant earthquakes causing stronger ground shaking. In conclusion, despite East Kalimantan's low local seismic activity, the study highlights the vulnerability of the IKN area to strong ground shaking from distant, high-magnitude earthquakes. This underscores the need for continued monitoring and preparedness, with tailored earthquake risk mitigation strategies, including reinforced construction standards and geotechnical assessments, to ensure the region's resilience to both local and distant seismic events. These insights are crucial for integrating seismic resilience into IKN's urban planning and the sustainable development of Indonesia's new capital city.
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References
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[2] A. H. Salsabila and N. Nurwati, “Deforestasi Dan Migrasi Penduduk Ke Ibu Kota Baru Kalimantan Timur: Peran Sinergis Pemerintah Dan Masyarakat,” Pros. Penelit. dan Pengabdi. Kpd. Masy., vol. 7, no. 1, p. 27, 2020, doi: 10.24198/jppm.v7i1.28259.
[3] A. Kurniadi, “JMB : Jurnal Manajemen Bencana,” JMB J. Manaj. Bencana, vol. 5, no. 2, pp. 1–12, 2019.
[4] W. L. Hutasoit, “Analisa Pemindahan Ibukota Negara,” Dedik. J. Ilm. Sos. Hukum, Budaya, vol. 19, no. 2, pp. 108–128, 2018.
[5] F. N. Ramadhani and S. Cahyadini, “Pendekatan Resiliensi Terhadap Bencana dalam Pengembangan Kawasan Permukiman Atas Air Balikpapan,” J. Sains dan Seni ITS, vol. 11, no. 5, pp. 165–170, 2023, doi: 10.12962/j23373520.v11i5.99570.
[6] M. I. Tawakal, “Identifikasi Bahaya Gempabumi Kalimantan Timur Menggunakan Metode Probabilistic Seismic Hazard Analysis (PSHA) untuk Probilitas Terlampaui 10% dalam 50 Tahun (500 Tahun),” Bul. Meteorol. Klimatologi, dan Geofis., vol. 2, no. 2, pp. 18–25, 2022.
[7] A. Sabtaji, “Statistik Kejadian Gempa Bumi Tektonik Tiap Provinsi Di Wilayah Indonesia Selama 11 Tahun Pengamatan (2009-2019) Statistics of Tectonic Earthquake Events Each Province in Indonesia Territory for 11 Years of Observation,” Bul. Meteorol. Klimatologi, Dan Geofis., vol. 1, no. 7, pp. 31–46, 2020.
[8] S. W. Dyah and E. Prasojo, “Tata Kelola Kolaboratif Dalam Upaya Penanggulangan Pasca Gempa di Wilayah Jawa Bagian Barat,” J. Ilmu Adm. Publik, vol. 8, no. September, pp. 1–19, 2020.
[9] U. Azmiyati, “Analisis Percepatan Getaran Tanah Maksimum Akibat Gempabumi Di Wilayah Nusa Tenggara Dengan Metode Probablistic Seismic Hazard Analysis (PSHA),” JISIP (Jurnal Ilmu Sos. dan Pendidikan), vol. 5, no. 1, pp. 331–339, 2021, doi: 10.58258/jisip.v5i1.1709.
[10] N. B. Wibowo and J. N. Sembri, “Analisis Peak Ground Acceleration (PGA) dan Intensitas Gempabumi berdasarkan Data Gempabumi Terasa Tahun 1981 - 2014 di Kabupaten Bantul Yogyakarta,” Indones. J. Appl. Phys., vol. 6, no. 01, p. 65, 2016, doi: 10.13057/ijap.v6i01.1804.
[11] M. C. Irawan, “ANALISIS PGA ( PEAK GROUND ACCELERATION ) BERDASARKAN DATA GEMPA UNTUK WILAYAH JAKARTA TIMUR MENGGUNAKAN SOFTWARE PSHA,” vol. 11, no. 4, pp. 379–384, 2018.
[12] C. Maramis, G. Pasau, and G. H. Tamuntuan, “Analisis Percepatan Tanah Maksimum Akibat Adanya Gempa Bumi di Lengan Utara Pulau Sulawesi Menggunakan Metode Fukushima Tanaka,” J. MIPA, vol. 9, no. 2, p. 97, 2020, doi: 10.35799/jmuo.9.2.2020.29029.
[13] Badan Meteorologi Klimatologi dan Geofisika, “Skala intensitas gempabumi (SIG) BMKG,” Badan Meteorologi Klimatologi dan Geofisika. 2019. [Online]. Available: https://www.bmkg.go.id/gempabumi/skala-intensitas-gempabumi.bmkg
[14] M. Rajif, “HAZARD SEISMIC ZONATION ANALYSIS OF WEST SUMATRA REGION USING PROBABILISTIC HAZARD SEISMIC ANALYSIS ( PHSA ) METHOD,” vol. 14, no. 1, pp. 8–17, 2021.
[15] L. Kainde, C. Poluakan, A. M. Rampengan, and M. Zulkifli, “Pemodelan Percepatan Tanah sebagai Parameter Hazard Gempabumi menggunakan Metode Deterministic Seismic Hazard Analysis di Kota Manado,” J. FisTa Fis. dan Ter., vol. 4, no. 2, pp. 84–94, 2023, doi: 10.53682/fista.v4i2.286.
[16] N. A. F. Tanjung, H. P. Yuniarto, and D. Widyawarman, “Analisis Amplifikasi Dan Indeks Kerentanan Seismik Di Kawasan Fmipa Ugm Menggunakan Metode HVSR,” J. Geosaintek, vol. 5, no. 2, p. 60, 2019, doi: 10.12962/j25023659.v5i2.5726.
[17] Y. Nakamura, “Clear identification of fundamental idea of Nakamura’s technique and its applications,” Proc. 12th world Conf. …, p. Paper no. 2656, 2000, [Online]. Available: http://www.sdr.co.jp/papers/n_tech_and_application.pdf
[18] N. Sitorus, S. Purwanto, and W. Utama, “Analisis Nilai Frekuensi Natural dan Amplifikasi Desa Olak Alen Blitar Menggunakan Metode Mikrotremor HVSR,” J. Geosaintek, vol. 3, no. 2, p. 89, 2017, doi: 10.12962/j25023659.v3i2.2962.
[19] L. I. Juarzan, W. A. W. Jafar, L. H. Hamimu, and I. Indrawati, “Analisis Ketebalan Lapisan Sedimen Menggunakan Metode Horizontal to Vertical Spectral Ratio (HVSR) di Wilayah Pesisir Kecamatan Moramo Kabupaten Konawe Selatan,” J. Rekayasa Geofis. Indones., vol. 5, no. 03, pp. 137–145, 2023, doi: 10.56099/jrgi.v5i03.27.
[20] F. Alfadilah, - Syafriani, - Hamdi, L. Dwiridal, and F. S. Rahmatullah, “Analysis of b-Value and Peak Ground Acceleration (PGA) in West Sumatra Province using Maximum Likelihood Method and Empirical Formula (Earthquake data Period 2007-2020),” Pillar Phys., vol. 15, no. 1, pp. 61–68, 2022, doi: 10.24036/12553171074.
[21] dan H. Febriani, Daruwati., “Analisis Nilai Peak Ground Acceleration dan Indeks Kerentanan Seismik Berdasarkan Data Mikroseismik Pada Daerah Rawan Gempa Bumi Di Kota Bengkulu,” J. Ilm. Edu Reseacrh, vol. 2, no. 2, pp. 85–90, 2013.
[22] K. Gupta and N. Satyam, “Estimation of Arias intensity and peak ground acceleration ( PGA ) using probabilistic seismic hazard assessment of Uttarakhand state ( India ),” Arab. J. Geosci., 2022, doi: 10.1007/s12517-022-09733-9.
[23] D. Ambarsari, “Analisis Mikrotremor Dengan Metode HVSR Untuk Mikrozonasi Kabupaten Gunungkidul Yogyakarta,” p. 95, 2017, [Online]. Available: https://repository.its.ac.id/72120/
[24] B. Harlianto and N. Sugianto, “Earthquake-prone Zonation of North Bengkulu Based on Peak Ground Acceleration of Katayama’s and Kanai’s Formula,” Int. J. Adv. Eng. Manag. Sci., vol. 2, no. 11, pp. 1857–1861, 2016, [Online]. Available: www.ijaems.com
[25] C. Series, “Analysis of peak ground acceleration ( PGA ) using the probabilistic seismic hazard analysis ( PSHA ) method for Bengkulu earthquake of 1900 – 2017 period Analysis of peak ground acceleration ( PGA ) using the probabilistic seismic hazard analysis ( PSHA ,” 2017, doi: 10.1088/1742-6596/1282/1/012054.
[26] Rahmania, Rasmid, M. Arisalwadi, and F. D. Sastrawan, Microzonation Mapping in Supporting Construction Plan, New Capital City of Indonesia (Case Study: Sepaku Sub-district, Panajam Paser Utara Regency), vol. 1. Atlantis Press International BV, 2023. doi: 10.2991/978-94-6463-228-6_10.
[27] R. Hafid, Supriyadi, N. K. N, T. A, and F. Rohmaniyah, “Percepatan Tanah Berdasarkan Data Mikroseismik Wisata Bantir Sumowono Semarang,” Unnes Phys. J., vol. 6, no. 1, pp. 54–59, 2017.
Published
2024-12-25
How to Cite
Rahmania, R., Alfania, A., Sastrawan, F., & Arisalwadi, M. (2024). Peak Ground Acceleration (PGA) Analysis for Eathquake Risk Mitigation in IKN Area, Sepaku Sub-Distric, East Kalimantan. KONSTAN - JURNAL FISIKA DAN PENDIDIKAN FISIKA, 9(02), 110-116. https://doi.org/https://doi.org/10.20414/konstan.v9i02.591
Section
Articles
