Fig. 6

Map of Switzerland with representation of all the earthquakes, which were registered within a time span of 90 days before the fluorescence monitoring was stopped are highlighted in the map of Switzerland by yellow dots. The size of the circles corresponds to the magnitude of the earthquakes according to the legend on the right side. The location of the earthquakes from Table 1 are highlighted with the blackish arrows. The measurement locations Baden (B) and Rheinfelden (R) are indicated by the bolt blackish dots (modified after SED)