Performance of borehole seismometers installed in the C0002G observatory at the Nankai Trough, Japan

Online Access: Get full text
doi: 10.1109/OCEANS-TAIPEI.2014.6964412
Author(s): Kimura, Toshinori; Araki, Eiichiro; Kawaguchi, Katsuyoshi; Kaneda, Yoshiyuki
Author Affiliation(s): Primary:
Japan Agency for Marine Earth Science and Technology, Yokosuka, Japan
Volume Title: Oceans 2014
Source: Oceans '14 MTS/IEEE, Taipei, Taiwan, April 7-10, 2014. Publisher: Institute of Electrical and Electronics Engineers, New York, NY, United States
Note: In English
Summary: We report performance characteristics of borehole seismometers installed in the C0002G observatory located at the Nankai Trough seismogenic zone, Japan. We conducted initial data processing including 1) Power spectral density analysis calculated from short-term records. 2) Running spectrum analysis using continuous long-term data. 3) Estimation of sensor orientation for borehole seismometers. We then compared obtained results with those of DONET KMD16 seafloor seismometer. Results show that borehole sensors have expected performance characteristics estimated by land experiments and catalog specifications. Obtained results can provide useful information for future analysis for weak signals related to earthquake phenomena.
Year of Publication: 2014
Research Program: IODP Integrated Ocean Drilling Program
Key Words: 19 Geophysics, Seismology; Boreholes; Elastic waves; IODP Site C0002; Instruments; Integrated Ocean Drilling Program; NanTroSEIZE; Nankai Trough; North Pacific; Northwest Pacific; Pacific Ocean; Seismic waves; Seismographs; Spectral analysis; West Pacific
Coordinates: N331800 N331801 E1363801 E1363800
Record ID: 2017006825
Copyright Information: GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data supplied by Institute of Geological and Nuclear Sciences Limited (GNS Science), Lower Hutt, New Zealand