Title :
Double seismic zone in the Hokkaido Island, Southern Kurile arc, derived from off-Kushiro permanent OBS and land-based observations
Author :
Watanabe, Tomoki ; Otsuka, Riyo ; Mikada, Hitoshi ; Hirata, Kenji ; Takahashi, Hiroaki ; Kasahara, Minoru ; Suyehiro, K.
Author_Institution :
Dept. of Deep Sea Res., Japan Marine Sci. & Technol. Center, Japan
Abstract :
We located hypocenters for more than two years, using combined datasets from land-based observations and ocean-bottom seismological data acquired by a permanent cable geophysical observatory system (JAMSTEC system), installed off Kushiro-Tokachi in July 1999. Hypocenter distribution characterizes that: 1) double seismic zone just east of the cabled observatory system, 2) a relatively low seismicity west of the cabled system, and 3) characteristic shallow seismic activity below the cabled system.
Keywords :
data acquisition; earthquakes; geophysical techniques; seismology; JAMSTEC system; double seismic zone; land-based observations; ocean-bottom seismological data; permanent cable geophysical observatory system; seismic activity; Communication cables; Data analysis; Earthquakes; Event detection; Humans; Marine technology; Observatories; Power cables; Seismology; Tsunami;
Conference_Titel :
Scientific Use of Submarine Cables and Related Technologies, 2003. The 3rd International Workshop on
Conference_Location :
Tokyo, Japan
Print_ISBN :
0-7803-7775-3
DOI :
10.1109/SSC.2003.1224127
