近日，美国斯坦福大学Shiqi Wang团队研究了世界大陆地幔地震。2026年2月5日出版的《科学》杂志发表了这一最新研究成果。

大陆地幔地震及其对大陆流变结构的启示，令地球物理学家着迷已逾半个世纪。此类地震的存在已无争议，但在全球范围内的识别记录仍较为匮乏。通过对比某次地震与邻近地震的Sn与Lg震相振幅比（Sn/Lg），可有效判别大陆地幔地震；与以往方法不同，该方法具备全球普适性。

研究组首次展示了一幅全球范围的大陆地幔地震分布图，其覆盖范围远超以往零散探测与推测区域。大陆地幔地震在全球广泛存在，同时又呈现出区域性规律，反映了局地岩石圈结构与构造演化历史。该研究成果彰显了大陆地幔地震对于理解大陆本质与全球构造演化的重要价值。

附：英文原文

Title: Continental mantle earthquakes of the world

Author: Shiqi Wang, Simon L. Klemperer

Issue&Volume: 2026-02-05

Abstract: Continental mantle earthquakes (CMEs) and their implications for the rheological structure of continents have fascinated geophysicists for more than half a century. Existence of these earthquakes is no longer debated, but their identification remains sparse across the globe. Comparing the Sn and Lg seismic wave amplitude ratio (Sn/Lg) of an earthquake with that of nearby earthquakes distinguishes CMEs and, unlike previous methods, can be applied globally. We present a global distribution of CMEs that extends well beyond previous individual detections and areas of speculation. CME occurrence is widespread globally yet patterned regionally, reflecting local lithospheric structure and tectonic history. Our results highlight the value of CMEs for understanding continents and global tectonics.

DOI: adz4367

Source: https://www.science.org/doi/10.1126/science.adz4367