This paper reviews global seismic activity and earthquake-related disasters in 2023,based on collected earthquake disaster data. We plot the variation curves of global disaster earthquake frequency with casualties since 1980 and create a distribution map of hazardous earthquakes in 2023. Information on earthquakes with casualties is aggregated,and major disaster events are analyzed in detail. The analysis reveals that global seismicity in 2023 was consistent with the average level of this century,although there was a notable increase in earthquakes of magnitude 7.0 or above,with no events exceeding magnitude 8.0. Earthquake disasters in 2023 were characterized by a rise in casualty frequency and severity. A key feature of the year was the frequent occurrence of “double main-shock earthquakes,” which caused significant casualties. Based on the causes of earthquake-related casualties and historical seismic activity,this paper proposes measures and recommendations for earthquake disaster prevention. These suggestions emphasize critical aspects of future disaster mitigation,preparedness,and relief efforts.