地震

A new study indicates that the Cascadia subduction zone and the northern San Andreas fault may trigger earthquakes in close succession, potentially amplifying disaster risks along the U.S. West Coast. Researchers identified evidence of such synchronization in ocean floor sediment cores spanning 3,100 years. This connection could affect cities from San Francisco to Vancouver simultaneously.

April 30, 2026 由 AI 报道

Scientists have captured the first clear images of a subduction zone breaking apart beneath the Pacific Northwest. The Juan de Fuca plate is splitting into fragments as it sinks under the North American plate. The findings, from a 2021 seismic experiment, reveal a gradual tearing process.

中智联合考察队将深入太平洋阿塔卡马海沟的未知深处。从瓦尔帕莱索港出发，搭乘中国科考船“探索一号”进行的为期三个月的任务旨在发现新物种并洞察地震和海啸。该合作让智利科学家使用其他国家没有的先进工具。

January 17, 2026 由 AI 报道

Scientists have used swarms of minuscule earthquakes to map a hidden and intricate tectonic structure beneath northern California. This region, at the intersection of the San Andreas fault and the Cascadia subduction zone, involves five moving pieces rather than the expected three. The findings help explain past seismic events and improve hazard predictions.