[S-CG65_2PO1] 応力と地殻ダイナミクス

[SCG65-P02] 千島弧前弧スリバーの運動に伴う小地震の断層面解の分布

*平塚 晋也¹、佐藤 魂夫²、菅原 宗³、今西 和俊⁴ (1.北大・理・地震火山研究観測センター、2.弘前大学理工学研究科、3.地球科学総合研究所、4.産業技術総合研究所)

In order to find the direct evidence of motion of fore-arc sliver along the Kuril trench, we investigated the distribution of fault plane solutions along the estimated boundary of Kuril fore-arc sliver in Hokkaido. Using the P-wave polarity data as well as P- and SH-wave amplitudes, we determined the fault plane solutions of smaller events (2.0