Figure 1

Location of the study area in SW China. The circles denote the earthquakes occurring between 1976 and 2015 with energy densities larger than 10−3J/m3 at the monitoring site (size of circles is proportional to magnitude of the earthquake). A zoom of the map shows the local tectonic setting and location of the BLZ hot spring site (star). Solid black and grey lines depict faults and rivers, respectively. This figure has been produced by using Generic Mapping Tools (GMT 4.5.2) software http://gmt.soest.hawaii.edu/.