Title :
Seismic structure monitoring beneath the seafloor using ocean waves
Author :
Araki, Eiichiro ; Kimura, Toshinori ; Kawaguchi, Katsuyoshi
Author_Institution :
R&D Center for Earthquake & Tsunami, Japan Agency for Marine-Earth Sci. & Technol. (JAMSTEC), Yokosuka, Japan
Abstract :
Feasibility of monitoring seismic velocity structure using seismic noise observed in the seafloor is demonstrated through two different types of waves, infragravity wave in 0.005 - 0.02 Hz and microseisms in 0.1 - 3 Hz. The examples of seismic velocity measurement using these waves are shown by observation data obtained by seafloor observatories deployed in the Nankai Trough south of Japan seafloor.
Keywords :
condition monitoring; earthquake engineering; geophysical prospecting; ocean waves; seafloor phenomena; seismology; seismometers; Japan; Nankai Trough; microseisms; ocean waves; seafloor; seismic noise; seismic structure monitoring; seismic velocity measurement; Monitoring; Noise; DONET; crustal structure; seafloor observation; seismic noise;
Conference_Titel :
Underwater Technology (UT), 2015 IEEE
Conference_Location :
Chennai
Print_ISBN :
978-1-4799-8299-8
DOI :
10.1109/UT.2015.7108286
