# Integrated Earthquake Catalog II: The Western Sector of the Russian Arctic
## 3 Results
### Statistics of the Integrated Catalog for Two Sub-Regions  
The integrated catalog of the western sector of the AZRF contains information on 4629 events. In turn, for the period 1998-2020, when all \"non-earthquakes\" were removed with a high degree of reliability, the catalog contains 2126 records (Figure 19). Detailed statistics for the catalog for the period 1998-2020 are presented in Table 6. Figure 19 shows that the registration level in the western part of the region is significantly better than in its central and eastern parts. \begin{table}
\begin{tabular}{c c c c c c c} \hline \hline \multirow{2}{*}{**Agency**} & \multirow{2}{*}{**Type of Magnitude**} & \multirow{2}{*}{**Priority**} & \multirow{2}{*}{**Number of Events**} & \multirow{2}{*}{**Magnitude in the Integrated Catalog**} & \multirow{2}{*}{**Figure**} & \multicolumn{2}{c}{**Mmin—Mmax.**} & \multirow{2}{*}{**Note**} \\  & & & & **in the Integrated Catalog** & & & **Mail Magnitude Scale** \\ \hline
**ISC** & \(mb\) & 1 & 42 & \(mb=mb^{\rm DSC}\) & **-** & 3.2–4.8 & \\ \hline
**NEIC, NEIS** & \(mb\) & 1 & 3 & \(mb=mb^{\rm NBC}-0.1\) & Figure 15a & 4.2–4.3 & \\ \hline
**MOS** & \(mb\) & 2 & 3 & \(mb=mb^{\rm MGS}-0.2\) & Figure 15b & 3.6–3.9 & \\ \hline
**IDC** & \(mb\) & 3 & 12 & \(mb=mb^{\rm DIC}+0.2\) & Figure 15c & 2.8–3.7 & \\ \hline
**IDC** & \(mb1\) & 3 & 4 & \(mb=mb1^{\rm DIC}\) & Figure 15d & 3.5–3.8 & \\ \hline
**IDC** & \(mbtmp\) & 3 & 2 & \(mb=mbtmp^{\rm DIC}+0.1\) & Figure 15e & 3.6–3.7 & \\ \hline
**NNC** & \(mb\) & 3 & 2 & \(mb=mb^{\rm NNC}\) & Figure 15f & 3.5–4.0 & \\ \hline
**BER** & \(ML\) & 4 & 140 & \(ML=ML^{BER}\) & **-** & 0.9–3.5 & \\ \hline
**NAO** & \(ML\) & 4 & 45 & \(ML=ML^{\rm NAO}-0.1\) & Figure 16a & 1.7–3.7 & \\ \hline
**CSEM** & \(ML\) & 4 & 3 & \(ML=ML^{\rm CSEM}\) & Figure 16b & 2.9–3.8 & \\ \hline
**HEL** & \(ML\) & 4 & 10 & \(ML=ML^{\rm HEL}-0.1\) & Figure 16c & 1.6–4.0 & \\ \hline
**KOLA** & \(ML\) & 4 & 12 & \(ML=ML^{\rm KOLA}\) & Figure 16d & 1.5–2.3 & \\ \hline
**FCIAR** & \(ML\) & 4 & 92 & \(mb=ML^{\rm KCIAR}+0.2\) & Figure 15g & 1.3–3.6 & \\ \hline
**BER** & \(MD\) & 4 & 11 & \(ML=MD^{\rm BER}-0.1\) & Figure 16e & 2.2–4.0 & \\ \hline
**ARC** & \(MLH\) & 4 & 1 & \(mb=MLH^{\rm ARC}+0.1\) & Figure 15h & 4.7 & \\ \hline
**MIRAS** & \(ML\) & 5 & 4 & \(ML=ML^{\rm MHRAS}-0.3\) & Figure 17b,c & 2.6–3.1 &
\begin{tabular}{} \end{tabular} \\ \hline
**VEP** & \(MPSP\) & 5 & 8 & \(mb=MPSP^{\rm VEP}-0.3\) & Figure 13 & 2.9–4.8 &
\begin{tabular}{} \end{tabular} \\ \hline
**EIDC** & \(ML\) & 5 & 7 & \(ML=ML^{\rm EDC}-0.3\) & Figure 17a & 3.2–4.1 &
\begin{tabular}{} \end{tabular} \\ \hline
**GSR** & \(Mf\) & 5 & 5 & \(mb=M^{\rm CSR}+0.2\) & Figure 17d & 2.0–3.3 &
\begin{tabular}{} \end{tabular} \\ \hline
**GSR** & \(Klass\) & 5 & 10 & \(mb=k/2-1.2\) & Figure 17e & 8.5–12 &
\begin{tabular}{} \end{tabular} \\ \hline
**NAO** & \(mb\) & 5 & 4 & \(M=mb^{\rm NAO}\) & & 3.4–4.4 & Not determined \\ \hline
**UPP** & \(ML\) & 5 & 1 & \(M=ML^{\rm LUPP}\) & **-** & 4.1 & Not determined \\ \hline
**LAO** & \(M\) & 5 & 1 & \(M=M^{\rm LAO}\) & **-** & 3.7 & Not determined \\ \hline
**Total** & & & **4022** & & & \\ \hline \hline \end{tabular}
\end{table} 
Table 5: Magnitude in the integrated catalog of the western sector of the Russian Arctic sub-regions. Barents and Kara Seas shelf. Figure 19: Map of earthquake epicenters of the integrated catalog for the western sector of the AZRF for the period 1998–2020. Yellow dots show events from Morozov catalog, blue dots show events from the ISC catalog, and red dots show events from Russian catalogs. Preferred location of event corresponds to the priority of data sources: 1 Morozov, 2 ISC, 3 RUS.