## 5 Conclusions
more accurate to employ the model developed in this paper for assessing the future risk of a large earthquake, particularly in segments characterized by small average recurrence intervals and extended elapsed times. Furthermore, the current universal recurrence model is likely more applicable to faults with a relatively limited number of studies available on ancient earthquakes and segments with relatively long recurrence intervals. Z.L. : Formal analysis; Data curation; Drawing diagrams of figures; Writing Original Draft. B.Z. : Writing--Review and Editing; Science and English checking all authors. All authors have read and agreed to the published version of the manuscript. This work is supported by the National Key R&D Program project of China (grant number 2022 YFC3003501). Not applicable. Data Availability Statement: Data will be made available (Table A1). Data analysis was performed using SPSS software ([[https://www.ibm.com/spss](https://www.ibm.com/spss)]([https://www.ibm.com/spss](https://www.ibm.com/spss)), [[https://www.ibm.com/docs/en/spss-statistics/beta?topic=features-q-q-plots&mhsrc=ibmsearch_a&mhq=Q-Qplot](https://www.ibm.com/docs/en/spss-statistics/beta?topic=features-q-q-plots&mhsrc=ibmsearch_a&mhq=Q-Qplot)]([https://www.ibm.com/docs/en/spss-statistics/beta?topic=features-q-q-plots&mhsrc=ibmsearch_a&mhq=Q-Qplot](https://www.ibm.com/docs/en/spss-statistics/beta?topic=features-q-q-plots&mhsrc=ibmsearch_a&mhq=Q-Qplot)), accessed on 2 March 2023). The authors declare no conflict of interest. \begin{table} \begin{tabular}{c c c c c c c} \hline \hline
**No.** & **Name of Fault** & **Situation of Segment** & **Age of Ancient Earthquake Events (Age)** & **Recurrence Interval (T)** & **Average Recurrence Interval (T\({}_{\text{err}}\))** & **Normalization (T\({}_{\text{err}}\))** & **Data Source** \\ \hline \multirow{9}{*}{F\({}_{10}\)} & \multirow{9}{*}{Laohushan-Maomaohan fault} & \multirow{9}{*}{Laohushan segment} & E1: \(7700\pm 50\) & \multirow{9}{*}{1520} & \multirow{9}{*}{1.5833} \\ \cline{6-6}  & & & E2: \(6180\pm 150\) & 1520 & & 1.5833 \\ \cline{6-6}  & & & E3: \(5200\pm 100\) & 980 & & 1.0208 \\ \cline{6-6}  & & & E4: \(4250\pm 150\) & 950 & & 0.9986 \\ \cline{6-6}  & & & E5: \(3050\pm 150\) & 1200 & & 1.2500 \\ \cline{6-6}  & & & E6: \(2000\pm 300\) & 1050 & & 1.0938 \\ \cline{6-6}  & & & E7: \(800\pm 100\) & 1200 & & 1.2500 \\ \cline{6-6}  & & & 122 & 678 & & 0.7063 \\ \cline{6-6}  & & & 20 & 102 & 960 & 0.1063 \\ \cline{6-6}  & & & E1: \(900\pm 300\) & & & \\ \cline{6-6}  & & & E2: \(6600\pm 500\) & 2400 & & 1.3333 \\ \cline{6-6}  & & & E3: \(5000\pm 300\) & 1600 & & 0.8889 \\ \cline{6-6}  & & & E4: \(3700\pm 300\) & 1300 & & 0.7222 \\ \cline{6-6}  & & & E5: \(1800\pm 300\) & 1900 & 1800 & 1.0556 \\ \hline \multirow{9}{*}{F\({}_{11}\)} & \multirow{9}{*}{Tianajoogou-Huangyangchuan fault} & \multirow{9}{*}{Tianqakogou} & E1: \(277\),\(00\pm 2200\) & \multirow{9}{*}{6400} & \multirow{9}{*}{1.3904} \\ \cline{6-6}  & & & E2: \(21\),\(300\pm 2400\) & 6400 & & 1.3904 \\ \cline{6-6}  & & & E3: \(16\),\(800\pm 1400\) & 4500 & & 0.9776 \\ \cline{6-6}  & & & E4: \(13\),\(700\pm 2000\) & 3100 & & 0.6735 \\ \cline{6-6}  & & & E5: \(10\),\(300\pm 1700\) & 3400 & & 0.7386 \\ \cline{6-6}  & & & E6: \(7590\pm 100\) & 2710 & & 0.5887 \\ \cline{6-6}  & & & 83 & 7507 & 4603 & 1.6309 \\ \hline \multirow{2}{*}{F\({}_{12}\)} & \multirow{2}{*}{Zhongwei-Tongxin fault segment (west segment)} & \multirow{2}{*}{Daquanshui-Hushanzi segment (west segment)} & E1: \(3150\pm 800\) & \multirow{2}{*}{4584} & \multirow{2}{*}{1.1293} \\ \cline{6-6}  & & & E3: \(6535\pm 200\) & 4584 & & 1.1293 \\ \cline{6-6}  & & & E5: \(3000\) & 3355 & 4059 & 0.8709 \\ \hline \hline \end{tabular}   
\begin{tabular}{c c c c c} \hline \hline
**No.