研究称月震正在引发新滑坡

Core Insights - The research conducted by the team from Sun Yat-sen University reveals that since 2009, dozens of new landslides have formed on the Moon, primarily driven by internal seismic activity rather than asteroid impacts [1][2] - This study, published in National Science Review, marks a significant advancement in lunar thermal evolution research and provides crucial insights for future human lunar base site selection and safety measures [1] Group 1: Research Findings - The team utilized satellite imagery with a resolution of less than 1 meter per pixel to compare pre- and post-event images, identifying numerous new landslides on the Moon since 2009 [1] - A total of 74 observation areas were selected for analysis, focusing on steep crater walls, wrinkle ridges from fault activity, and irregular mare patches that may indicate recent volcanic activity [1][2] - The new landslides are characterized as "small" and "shallow," with most being less than 1 kilometer in length and 100 meters in width, and the largest having a volume of less than 100,000 cubic meters [2] Group 2: Geological Implications - The analysis revealed many newly formed impact craters, with the largest exceeding 70 meters in diameter, but less than 30% of the new landslides were triggered by impacts [2] - The majority of landslides are believed to be caused by internal moonquakes, indicating ongoing energy activity within the Moon [2] - The eastern region of the Mare Imbrium basin, where these landslides are concentrated, has been identified as a current seismic activity zone, which was previously noted during the Apollo missions [2] Group 3: Future Considerations - The findings suggest that future lunar bases should avoid areas with high seismic activity to ensure stability and safety [2] - The distribution of lunar landslides can serve as an indirect method to locate active seismic zones beneath the Moon's surface [2]