# Evolution of the Seismic Forecast System Implemented for the Vrancea Area (Romania)
## 3 Data Collection and Calculation Results, a Case Study
\begin{table}
\begin{tabular}{c c c c c c c c c c c c c} \hline \hline \multicolumn{1}{c}{**Channel Weights**} & \multicolumn{1}{c}{**\(\mathbf{\alpha_{125}}\)**} & \multicolumn{1}{c}{**\(\mathbf{\alpha_{125}}\)**} & \multicolumn{1}{c}{**\(\mathbf{\alpha_{125}}\)**} & \multicolumn{1}{c}{**\(\mathbf{\alpha_{125}}\)**} & \multicolumn{1}{c}{**\(\mathbf{\alpha_{125}}\)**} & \multicolumn{1}{c}{**\(\mathbf{\alpha_{125}}\)**} & \multicolumn{1}{c}{**\(\mathbf{\alpha_{125}}\)**} & \multicolumn{1}{c}{**\(\mathbf{\alpha_{125}}\)**} & \multicolumn{1}{c}{**\(\mathbf{\alpha_{125}}\)**} & \multicolumn{1}{c}{**\(\mathbf{\alpha_{125}}\)**} & \multicolumn{1}{c}{**\(\mathbf{\alpha_{125}}\)**} \\ \hline \multicolumn{1}{c}{**Station**} & **BISARAR** & **BISSCO** & **DLMCO** & **DLMCO** & **DLMCO** & **LORPCO** & **LORPCO** & **NISHRA** & **PANCMd** & **NEHRAG** & **PANCMd** &  
\begin{table}
\begin{tabular}{c c c c c c c c c c c c c c} \hline \hline \multicolumn{1}{c}{**Channel Weights**} & \multicolumn{1}{c}{**0.125**} & \multicolumn{1}{c}{**0.125**} & \multicolumn{1}{c}{**0.125**} & \multicolumn{1}{c}{**0.125**} & \multicolumn{1}{c}{**0.125**} & \multicolumn{1}{c}{**0.125**} & \multicolumn{1}{c}{**0.125**} & \multicolumn{1}{c}{**0.125**} & \multicolumn{1}{c}{**0.125**} & \multicolumn{1}{c}{**0.125**} & \multicolumn{1}{c}{**0.125**} & \multicolumn{1}{c}{**0.125**} & \multicolumn{1}{c}{**0.125**} & \multicolumn{1}{c}{**1.125**} & \multicolumn{1}{c}{**1.125**} & \multicolumn{1}{c}{**1.125**} \\ \hline \multicolumn{1}{c}{**Station**} & **BISARARAR** & **BISSCO\({}_{1}\)** & **DLNCO\({}_{1}\)** & **DLN46** & **LOPCO\({}_{1}\)** & **LORP84** & **NTHIRAdd** & **PANC46** & **Mean** & **Mean** & **Mean** & **Mean**  
Table 1 also includes seismic activity in the Vrancea region. These data are available at [[http://afros.infp.ro/AFROS.php?link=dategeofizice](http://afros.infp.ro/AFROS.php?link=dategeofizice)]([http://afros.infp.ro/AFROS.php?link=dategeofizice](http://afros.infp.ro/AFROS.php?link=dategeofizice)) (accessed on 2 March 2025) and are represented in terms of magnitude. For a comprehensive analysis, cumulative daily energy (EnergyE) and four-day average energy (mean Energy/4 days) are used in Figure 1 to account for all earthquakes occurring on a given day. Table S1 and Figure S4 are provided \begin{table}
\begin{tabular}{c c c c c c c} \hline \hline
**Station** & **Location** & **Equipment** & **North** & **East** & **Description** & **Start** & **End** \\ \hline BISRAERd & Bisoca & AERC & 45.5481 & 26.7099 & Bisoca, radon & 25 February 2025 & to date \\ BISRCO2 & Bisoca & DL303 & 45.5481 & 26.7099 & Bisoca CO\({}_{2}\)/CO & 09 July 2019 & to date \\ DLMCQ2 & Dalma & DL303 & 45.3629 & 26.5965 & Dalma CO\({}_{2}\)/CO & 04 July 2022 & to date \\ DLMdd & Dalma & RADONSCOUP & 45.3629 & 26.5965 & Dalma, radon & 04 July 2022 & to date \\ LOPrCO2 & Lopatari & DL303 & 45.4738 & 26.5680 & Mocearu, CO + CO\({}_{2}\) & 26 June 2019 & to date \\ LOPRdd & Lopatari & RADONSCOUPp & 45.4738 & 26.5680 & Mocearu, radon & 06 August 2015 & to date \\ NEHRdd & Nebiou & RADONSCOUPp & 45.4272 & 26.2952 & NEHR, radon & 06 August 2015 & to date \\ PANCdd & Panciu & RADONSCOUPp & 45.8723 & 27.1477 & PANC, radon & 29 September 2021 & to date \\ \hline \hline \end{tabular}
\end{table} 
Table 2: The monitoring stations used in the decision matrix. Figure 2: Time series of radon and CO\({}_{2}\) before the local magnitude 5.4 (Richter scale) earthquake at the Bisoca, Lopatari, and Panciu monitoring stations; Magnitude, Depth, and the OEF AFROS signal resulted from the decision matrix. in the Supplementary Files in Excel format. Data flow in updating the decision matrix is presented in Figure 5.  
The decision matrix is based on relationships (1)-(4).