构造震动追踪某些主要板块边界断层的反复缓慢破裂。关于轻微地震最令人困惑的一个方面是，一些断层段产生强烈的周期性，空间广泛的轻微地震事件，而其他断层段则有更多的无组织、异步活动。
研究组测量了在轻微地震发作期间同步激活的片段的大小以及与主要板块边界区域地震率的关系。太空中的轻微地震同步似乎受到附近的小地震和实验室内地震活动的限制。这种观测结果可以用断层段的自同步和区域地震的扰动之间的竞争来解释。该结果暗示了以前未被认识到的俯冲系统之间的相互作用，在这种相互作用中，远离断层的地震活动影响了断层是分成小段还是大段断裂。
附：英文原文
Title: The big impact of small quakes on tectonic tremor synchronization
Author: Gaspard Farge, Emily E. Brodsky
Issue&Volume: 2025-05-16
Abstract: Tectonic tremor tracks the repeated slow rupture of certain major plate boundary faults. One of the most perplexing aspects about tremor is that some fault segments produce strongly periodic, spatially extensive tremor episodes, while others have more disorganized, asynchronous activity. Here, we measure the size of segments that activate synchronously during tremor episodes and the relationship to regional earthquake rate on major plate boundaries. Tremor synchronization in space seems to be limited by the activity of small, nearby crustal and intraslab earthquakes. This observation can be explained by a competition between the self-synchronization of fault segments and perturbation by regional earthquakes. Our results imply previously unrecognized interactions across subduction systems, in which earthquake activity far from the fault influences whether it breaks in small or large segments.
DOI: adu7173
Source: https://www.science.org/doi/10.1126/sciadv.adu7173