Mubarok, Fathul Alamsyah (2018) ESTIMASI MOMEN TENSOR DAN POLA BIDANG SESAR AMERIKA SERIKAT PADA TAHUN 2016-2017 DENGAN INVERSI WAVEFORM TIGA KOMPONEN DENGAN PROGRAM ISOLA. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Penelitian dengan fokus analisa momen tensor dan pola bidang
patahan dapat dilakukan pada gempa bumi wilayah Amerika Serikat
pada tahun 2016 hingga 2017dengan magnitude ≥5 SR dengan
memanfaatkan program ISOLA-GUI. Prinsip program ini mengolah tiga
komponen gelombang seismik yang terekam dalam seismogram. Data
berupa gelombang diolah sesuai masing-masing event gempa yang
terjadi dan digunakan perhitungan fungsi Green serta inversi. Pada
tahap inversi digunakan 4 filter f1, f2, f3, f4 yang diisi sesuai event.
Plotting untuk hasil dilakukan setelah tahap inversi dan didapatkan nilai
variance reduction yang bernilai mendekati 1,00. Plot selanjutnya
berupa nilai momen tensor beserta pola bidang patahan yang
disimbolkan dengan beachball. Pengolahan tersebut dilakukan pada
seluruh event gempa. Setelah perhitungan, pengolahan, dan interpretasi,
maka nilai momen tensor yang didapatkan yaitu Mrr = -4.376 hingga
0.879, Mtt = -1.87 hingga 1.534, Mpp = -1.482 hingga 2.841 serta nilai
Mrt = -0.982 hingga 1.804, Mrp = -0.208 hingga 3.500, Mtp = -3.152
hingga 0.849.
==============================================================This research focuses on the analysis of tensor moments and
fracture patterns can be done in an earthquake from 2016 to 2017 with a
magnitude of ≥5 SR by utilizing the ISOLA-GUI program. The principle
of this program is to process the three components of seismic waves
recorded in the seismogram. The waveform data is processed according
to each earthquake event and solution. At inversion stage 4 filters used
f1, f2, f3, f4 are the appropriate events. Plotting for results done after the
inversion and yield stage. The next plot is shaped tensor moment
attempted pattern fault field symbolized with beachball. Processing is
done on all earthquake events. After calculation, processing, and
interpretation, the moment of tensor obtained is Mrr = -4.376 to 0.879,
Mtt = -1.87 to 1.534, Mpp = -1.482 to 2.841 and Mrt = -0.982 to 1.804,
Mrp = -0.208 to 3.500, Mtp = -3.152 to 0.849.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Uncontrolled Keywords: | ISOLA-GUI, fungsi Green, inversi, plotting, beachball. |
| Subjects: | E History America > E151 United States (General) G Geography. Anthropology. Recreation > G Geography (General) > G70.212 ArcGIS. Geographic information systems. G Geography. Anthropology. Recreation > GB Physical geography |
| Divisions: | Faculty of Mathematics and Science > Physics > 45201-(S1) Undergraduate Thesis |
| Depositing User: | Fathul Alamsyah Mubarok |
| Date Deposited: | 11 Apr 2018 02:17 |
| Last Modified: | 11 Apr 2018 02:17 |
| URI: | http://repository.its.ac.id/id/eprint/50665 |
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