Fig. 3
From: Effects of seismic activity on the fluorescence signal of groundwater
Map of the area of Northern Switzerland and the bordering countries of France and Germany with represented magnitudes of the main occurring earthquakes. The two Fluorescence monitoring locations Rheinfelden (R) and Baden (B) are indicated with bold blackish dots. The reddish lines represent the main tectonic faults in the nearby area of the measurement locations. The greyish circles illustrate the locations of the registered earthquakes since 2001. The size of the circles corresponds to the magnitude of the earthquakes according to the legend on the right side of the figure (modified after SED)