Article Sidebar

Download
PDF

Main Article Content

Abstract

ABSTRACT
Bengkulu is one of 34 provinces in Indonesia which is a megathrust region. So Bengkulu province is often hit by many large earthquakes with shallow depth. TEC anomaly was analyzed based on three electromagnetic waves radiated by an earthquake. The total electron content (TEC) anomaly is seen through the global positioning system (GPS) dual-frequency radio signal data. The continuous wavelet transform (CWT) method is used to divide the signal analysis into several sections according to the electromagnetic wave frequency range of acoustic (2.5 mHz) -3 mHz), gravity waves (1 mHz-2.8 mHz) and rayleigh waves (5 mHz-33 mHz). GPS observation data for 9 days is calculated using the Standard deviation (2?) method to see trends in data changes. The analysis shows anomalies in the September 12 2007 earthquake (7.9 Mw), the March 5 2010 earthquake (6.3 Mw) and the August 4 2011 earthquake (6.0 Mw). Anomalies are detected 1 to 5 hours before an earthquake occurs. TEC anomalies that occur may be related to the process of preseismic before the earthquake and may be an early sign of an earthquake.

Keyword: earthquake, total electron content, continous wavelet transform, standard deviation

Article Details

License

Authors who publish with this journal agree to the following terms:

  1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgment of the work's authorship and initial publication in this journal.
  2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal.
  3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
  4. This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
How to Cite
Aprillo, L. A., Santosa, H., & Hadi, F. (2019). Analisis Total Electron Content (TEC) Menggunakan Continous Wavelet Transform Sebagai Indikator Prekursor Gempa Bumi Di Wilayah Provinsi Bengkulu. JURNAL AMPLIFIER : JURNAL ILMIAH BIDANG TEKNIK ELEKTRO DAN KOMPUTER, 9(2), 27–33. https://doi.org/10.33369/jamplifier.v9i2.15380
Download Citation
Endnote/Zotero/Mendeley (RIS)
BibTeX

References

  1. REFERENSI
  2. B. Muslim, J. Effendi, E. Aldrian, Fakhrizal, B. Sunardi and A. , "Pengembangan Sistem Monitoring Gelombang Ionosfer Terkait Gempa Bumi Menggunakan Data Gps (Gpsionoquake)," in Seminar Nasional Sains Atmosfer dan Antariksa (SNSAA) 2014 Lembaga Penerbangan dan Antariksa Nasional (Lapan), Bandung, 2014.
  3. A. M. Nur, "Gempa Bumi, Tsunami dan Mitigasinya," Jurnal Geografi, vol. 7, no. 1, p. 8, 2010.
  4. F. A. Saputra , "Analisa Perubahan Ionosfer Akibat Gempa Bumi Sumatra Barat Tanggal 2 Maret 2016," JURNAL TEKNIK ITS , vol. 6, no. 2, p. 6, 2017.
  5. T. Rikitake, Erthquake Prediction, Amsterdam: Elsevier, 1976.
  6. B. Sunardi and S. , "Pemantauan Anomali Total Electron Content (TEC) Berkaitan Dengan Kejadian Gempabumi Di Sekitar Wilayah Jawa Tahun 2015," Jurnal Fisika Dan Aplikasinya, vol. 1, no. 2, p. 6, 2016.
  7. A. G. Simanjuntak, B. Muslim and E. Hartantyo, "Identifikasi Prekursor Beberapa Gempa di Sumatera Melalui Analisis Total Electron Content (TEC) di Ionosfer Menggunakan Teknik Korelasi," in Seminar Nasional Teknofisika Nuklir 2017, Yogyakarta, 2017.
  8. G. jiming and L. Hui, "Investigation of ionosphere TEC distribution in China region by GIM model," Geo-spatial Information Science, vol. 8, no. 3, pp. 197-200, 2005. Alam, S., Surjati, I., & Ningsih, Y. K, “Patch Modification and Slot Arrangement of Microstrip Antenna for Improving the Axial Ratio”, International Conference on Broadband Communication, Wireless Sensors and Powering (BCWSP), 2017.
  9. B. Sunardi, B. Muslim and S. Pakpahan, "Anomali Total Electron Content (TEC) Sebelum Gempabumi Kuat di Indonesia Tahun 2014," in Seminar Nasional Jurusan Fisika FMIPA UNESA, Surabaya, 2015
  10. T. Iwata and K. Umeno, "Pre-seismic ionospheric anomalies detected before the 2016 Kumamoto earthquake," p. 20, 2017.
  11. T. P. S. G. Nasional, Peta Sumber Bahaya dan Bahaya Gempa di Indonesia Tahun 2017, Bandung: Pusat Penelitian dan Pengembangan Perumahan dan Pemukiman Kementerian Pekerjaan Umum dan Perumahan Rakyat , 2017, p. 361.
  12. Liu, L., W. Wan, M. L. Zhang, B. Zhao, and B.
  13. Ning, 2008b. Prestorm enhancements in
  14. NmF2 and total electron content at low
  15. latitudes. J. Geophys. Res., 113, A02311,
  16. doi: 10.1029/2007JA012832
  17. Muslim, B. 2015. Pengujian Teknik Autokorelasi Untuk Mendeteksi Pengaruh Aktivitas Gempa Bumi Besar Pada Ionosfer. Majalah Sains dan Teknologi Dirgantara.
  18. Foster, D.J., Mosher, C.C. dan Hassanzadeh, S., 1994, Wavelet Transform Methods for Geophysical Applications, 64th Annual International Meeting, Soc. Expl. Geophys., Expanded Abstract, halaman 1465 – 1468.
  19. Anant, K.S. dan Dowla, F.U., 1997, Wavelet Transform Methods for Phase Identification in Three-Component Seismograms, Bulletin of Seismological Society of America, Vol. 87, No. 6, halaman 1598 – 1612.
  20. Syauqiah, Sungkono, " Penerapan Metode Continous Wavelet Transform Data Self Potencial Studi Tanggul Lapindo," JURNAL TEKNIK ITS , vol. 6, no. 2, p. 6, 2017.
  21. E. A. Suprayitno, R. Hendradadi and A. Arifin, "Analisa Sinyal Electrocardiogrphy dan Phonocardiography secara simultan Mengggunakan Continous Wavelet Transform," in The 6th – Electrical Power, Elctronics, Communications, Controls, and Informatics Seminar 2012, Yogyakarta, 2012.