Studi Relokasi Hiposenter Aftershock Gempa Yogyakarta 2006
نویسندگان
چکیده
Studi relokasi hiposenter aftershock gempa Yogyakarta 2006 telah diteliiti melalui pengolahan data waveform pada 16 Juni s.d 5 Juli 2006. Data model kecepatan gelombang 1D Jawa Tengah digunakan sebagai awal. Identifikasi distribusi bumi diperoleh menggunakan metode Joint Hypocenter Determination (JHD) dan program Velest. Lokasi ini selanjutnya di plot peta GMT (Generic Mapping Tools). Hasil penelitian memperlihatkan bahwa persebaran gempabumi membentuk tiga buah cluster, berada dibagian timur kemudian membelok ke arah selatan Sesar Opak. Hiposenter memiliki pola suatu bidang sesar. Kemudian, hasil menemukan adanya rambatan energi sepanjang zona lemah Opak dari sesar aktif bagian timur. Nilai RMS residual menunjukkan yang cukup akurat yaitu sebesar 0,0596 detik menghasilkan tidak jauh berbeda dengan awal (Jawa Tengah). The relocation study of the earthquake hypocenter has been investigated through processing from June to July wave velocity Central Java is used as initial model. Identification distribution was obtained using method and Velest program. location then plotted on map results showed that formed three clusters, located in eastern part veered south Fault. a pattern form fault plane. Then, found energy propagation along weak zone Fault an active part. value shows fairly accurate result 0.0596 seconds produces not much different (Central Java).
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ژورنال
عنوان ژورنال: Jurnal Fisika Unand
سال: 2021
ISSN: ['2302-8491', '2686-2433']
DOI: https://doi.org/10.25077/jfu.9.4.502-509.2020