An earthquake of magnitude 5.5 occurred in Pingyuan county(37.16N,116.34E),Shandong Province at 2:33 on August 6,2023,of Beijing time. The early warning produced the first early warning results 7.5 seconds after the earthquake. The China Earthquake Network Center released the automatic rapid report results in 2 minutes after the earthquake and the official rapid report results in 10 minutes after the earthquake. Cooperated with multiple units,the China Earthquake Network Center produced 9 types of emergency products,including source basic parameters,historical earthquakes,seismic tectonics,source mechanisms,aftershock location,earthquake intensity and source rupture process. The results show that the earthquake occurred near the Linnan fault. The source mechanism indicates that the earthquake was a strike-slip event. The results of aftershock precise relocation show that the aftershock spread was close to NEE direction,which was consistent with the fault direction near the epicenter. The estimation from the Intensity Rapid Report suggests that the intensity of the polar earthquake area reaches Ⅷ,with an area of about 528km²,and the total area of Ⅶ and above is about 1694km².