[S-CG52] Crustal fluids and deformation

[SCG52-P03] Hot spring and groundwater exploration in and around the earthquake swarm zone of northern Yamaguchi Prefecture occurring since February 2025.

*Noritoshi Morikawa¹, Miyu Hasegawa^1,2, Yuta Amezawa¹, Yoko Togo¹, Tsuyoshi Shintani¹, Yuki Tosaki¹, Hiroshi A Takahashi¹ (1. Geological Survey of Japan, AIST, 2. Hirosaki University)

Keywords:Hot spring, Earthquake swarm, Helium isotopes, Groundwater, Isotopic composition