Determination of Mount Merapi Volcanic Earthquake Hypocentre By Using Seismic Wave Polarization Analysis

Authors

Syahrial Ayub , Muhammad Zuhdi , Muhammad Taufik , Gunawan Gunawan

DOI:

10.29303/jossed.v1i1.474

Published:

2020-10-08

Issue:

Vol. 1 No. 1 (2020): October

Keywords:

Hypocenter, mount Merapi, polarization analysis, seismic wave, volcanic earthquake

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How to Cite

Ayub, S., Zuhdi, M., Taufik, M., & Gunawan, G. (2020). Determination of Mount Merapi Volcanic Earthquake Hypocentre By Using Seismic Wave Polarization Analysis. Journal of Science and Science Education, 1(1), 21–25. https://doi.org/10.29303/jossed.v1i1.474

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Abstract

Volcanic earthquakes of mount Merapi have been investigated periodically. The investigation aims to determine the hypocenter and epicenter of mount Merapi's volcanic earthquake using wave polarization analysis. The analysis was carried out in three domains, which are the time domain, the frequency domain, and the space domain. The analysis in the time domain was conducted by the arrival time of the volcanic earthquake, and the analysis in the frequency domain was done by observing the spectrum to get information on source frequency and bandwidth passed from polarization analysis, while the analysis in the space domain was conducted especially on hypocenter determination of the volcanic earthquakes. The analysis leads to the frequency of source 6 Hz and a bandwidth of 0.1 Hz. Thus, the hypocenter of volcanic earthquakes by polarization analysis was distributed to depth from 670 m to 3250 m from Merapi's top

References

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Author Biographies

Syahrial Ayub, Physics Education, FKIP, University of Mataram, Lombok, West Nusa Tenggara

Muhammad Zuhdi, Physics Education, FKIP, University of Mataram, Lombok, West Nusa Tenggara

Muhammad Taufik, Physics Education, FKIP, University of Mataram, Lombok, West Nusa Tenggara

Gunawan Gunawan, Physics Education, FKIP, University of Mataram, Lombok, West Nusa Tenggara

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