## 4 Results and Discussion
### Interactions After the Seismic Event  
Between 1 and 24 h after the seismic events, a positive correlation was observed for 78 data points and a negative correlation--for 578 data points. This dataset represented approximately 34% of the input dataset. Practically all signals from the seismic activity channels were negatively correlated with those from the probes. The interaction duration varied in each case. Positive correlations were only observed between the signal from probe 4 and the signal on channel 1, between the signals from probes 3, 5, and 6 and the signal on channel 3, and between the signals from probes 3 and 4 and the signal on channel 4. In each case, the duration of the correlation was different. Between 1 and 24 h after the seismic events, correlations were observed only between the signals from probe 5 and channel 3. Shorter interactions, from 5 to 24 h and from 8 to 24 h were observed between the signal from channel 1 and the signal from probe 4, and between the signal from channel 4 and the signal from probe 4, respectively. The remaining positive correlations lasted for 3-6 h. Negative correlations were observed between the signal from channel 2 and the signals from all radon probes. For probes 2, 3, 4, and 6, the duration time was similar, between 10 and 15 h. In the case of the signal from probe 5, interactions were observed between 18 and 24 h. The signal from probe 2 was negatively correlated with the signals from channels 1, 2, and 3. Identical interactions were observed after events no. 1 (positive), no. 2 (negative) and no. 3 (positive) between the signals from probes 4 and 6 and the signals from channels 4 and 3, respectively. In contrast, the signals from channels 1 and 3 had an identical (positive) correlation only after event no. 1. The signals from probes 2 and 4 were correlated with the signals from channels 4 and 1, respectively. After event no. 3, the signals from probes 4 and 6 were correlated with the signals from channels 4 and 3, respectively. In contrast, the signals from probes 2 and 4 correlated with the signals from channels 4 and 1, respectively. The signal from probe 6 was correlated with the signals on channels 2 and 4, and the signal from probes 2 and 3 was only correlated with the signal from channel 4 (Figure 20B). Between 25 and 48 h after each of the four seismic events, a significant correlation was observed for 772 data points (38.6% of the input data), of which 442 correlations were positive and 300 were negative. Positive correlations were observed twice for the signals from channels 2 and 4. The signal from channel 2 was positively correlated for 4 h with the signal from probe 2 and for 24 h with that from probe 4. The signal from channel 4 was also positively correlated with the signals from probes 2 and 4. However, the correlation time in both cases was 24 h. The signal from channel 3 remained positively correlated with the signal from probe 2 for 24 h. No correlations were observed between the signals from channels 1 and probe 5 and those from channels 3 and 4. In the remaining cases the correlations were mixed. After events no. 2 and 3, identical correlations were observed between the signals from probes 2, 3, and 6 and the signal from channel 2, between the signal from probe 3 and the signals from channels 3 and 4, and between the signals from probes 2 and 3 and the signal from channel 4. All correlations were positive (Figure 21B). The data analyzed for 49 and 72 h after the seismic events contained 596 positively correlated data and 302 negatively correlated data. They accounted for 46.8% of the input dataset. Between 49 and 72 h after the events, an identical reaction was observed for probes 2, 3, and 4. Positive correlations were observed between the signals from probes 2, 3, and 5 and the signal on channel 2, between the signal from probe 5 and the signal from channel 3, and between the signal from probe 2 and the signal on channel 4.