KOREKSI INSTRUMEN PADA REKAMAN SEISMOMETER PERIODE PENDEK

• Main Authors: , ERNA KUSUMA WATI, , Dr. rer. nat Wiwit Suryanto M.Si
• Format: Theses and Dissertations NonPeerReviewed
• Published: [Yogyakarta] : Universitas Gadjah Mada 2013
• Subjects: ETD
• Online Access: https://repository.ugm.ac.id/122868/; http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=62977
• Institution: Universitas Gadjah Mada

Instrument correction method has been carried out on the short-period seismogram for the Honshu Japan earthquake (Mw 7,4) of September 5, 2004 from the MERAMEX seismogram recorded by short-period seismometer L4C-3D and the Tohoku-Oki earthquake Japan with Mw 9,0 on March 11, 2011 recorded by four seismic stations in Padang, West Sumatera by using short-period seismometer DS-4A. Data processing was performed by applying the inverse filter using the MATLAB program version R2009a. Instrument correction result from short-period seismometer L4C-3D data was compared to seismogram from broadband seismometer STS-2 records. Meanwhile the result of the instrument correction of short-period seismometer data DS-4A was compared to synthetic seismogram calculated by GEMINI (Greens Function of the earth by Minor Integration) program. Instrument corrected seismogram have a distinctive characteristic which is indicated by appearance of low frequency waveform of Love and Rayleigh waves. This is a success indicator of the instrument correction method that has been done.