In this study,the RISP system was used to obtain the real-time automatic detection results of the Maerkang,Sichuan earthquake sequence from 0:00 to 12:00 on June 10,2022.The automatic detection results were then analyzed and compared with the manual positioning results.The comparison results revealed that the number of earthquakes in the automatic catalog was 1.98 times that in the manual catalog,and the matching rate was 93.2 %.Earthquakes with an occurrence time deviation of less than ±1.0 s accounted for 95.64 %; those with an epicenter position deviation of less than 10 km accounted for 97.09 %; and those with a magnitude deviation of less than ±0.3 accounted for 96.36 %. The earthquakes detected and missed by the RISP system, as well as those with large deviations in earthquake parameters from the manual catalog, were analyzed. The advantages and disadvantages of the system for detecting dense earthquake sequences were summarized, and preliminary suggestions for optimizing the system were given. The RISP system can quickly produce the high-precision arrival date of the seismic phase and earthquake catalog with high completeness. Such information can be used for the determination of postearthquake trends and focal mechanism nodes, the rapid and precise positioning of aftershocks, and other earthquake emergency work. Therefore, the RISP system can quickly obtain high-precision seismic phase arrival data and the complete earthquake catalog and can thus be applied in earthquake emergency response work.