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

fYear

2003

fDate

25-27 June 2003

Firstpage

133

Lastpage

136

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/SSC.2003.1224127

Filename

1224127