Fig. 1From: Ambient noise tomography in the Naruko/Onikobe volcanic area, NE Japan: implications for geofluids and seismic activityDistribution of seismic stations in the study area. Blue triangles denote the temporal stations of the Naruko array. White triangles are the permanent stations operated by Tohoku University and Hi-net/NIED. Red triangles are Quaternary volcanoes. The yellow star represents the epicenter of the 2008 earthquake, and the white rectangular box delineates the spatial extent of the aftershock areaBack to article page