《科学》 第392卷 第6804期 · 2026年6月18日 · 中文解读
2011年东北冲地震后ScS波触发的多板块界面滑动事件
Seismology: Steplike ground motions during the 2011 Tohoku-oki earthquake
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研究发现2011年东北冲地震产生的ScS波在日本各地触发了跨越多个板块边界的滑动事件,导致观测到阶梯状向东位移。
原文开头
ScS-triggered slip on megathrust interfaces after the 2011 MW 9.0 Tohoku-Oki earthquake Sunyoung Park1*, Hiroo Kanamori2, Luis Rivera3 We report an extraordinary observation of ground motion in Japan after the moment magnitude (MW) 9.0 2011 Tohoku-Oki earthquake attributed to a multiplate-interface slip event triggered by shear wave that traveled to the earth’s core and back. The megathrust earthquake generated a strong ScS phase with a peak-to-peak amplitude exceeding 1 centimeter in Japan. Superposed on this waveform, an eastward steplike displacement of up to 5 to 6 millimeters was recorded in Global Navigation Satellite System (GNSS) data throughout Japan. This likely originated from slip on the megathrust interfaces triggered by the nearly simultaneous arrival of the ScS wave across Japan. …
摘自《科学》(Science)第392卷 第6804期 · 2026年6月18日。仅引用开头一小段供了解文章,版权归原刊所有,全文请阅读原刊。

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