SEGJ Technical Conference

Analysis of seismic signal from ACROSS sources at Toki, Toyohashi, and Morimachi using the array observation at Horai

Abstract ACROSS signal from Toki was observed at Horai in Aichi Prefecture over three observation periods during 2005 ~ 2009. As the result of the first and second observation, we proved both the stability of ACROSS signal and repeatability of array observation. The arrival direction of ACROSS signal from Toki was determined using semblance analysis of the transfer function. The first arrival and several reflected waves such as that from the plate boundary were identified by comparing with the travel time information by Tsuruga et al.,2005. The arrival direction of those waves are coincide with the direction of the ACROSS source.