Predictable seismic cycles result from structural rupture barriers on oceanic transform faults · J. Gong et al.
原文开头
Jianhua Gong1*, Wenyuan Fan2, Jeffrey J. McGuire3,4, Mark D. Behn5, Jessica M. Warren6, Emily Roland7, Margaret S. Boettcher4,8, John A. Collins4, Yajing Liu9, Christopher R. German4 Earthquakes of magnitude (M) >5.5 on oceanic transform faults (OTFs) repeatedly rupture the same locked patches, sometimes quasiperiodically. These patches are separated by “barriers” that halt earthquake propagation and slip mostly aseismically. However, the physical processes governing this systematic behavior remain unclear. We analyzed two barriers along the Gofar transform fault that have arrested ~15 M6 earthquakes over the past three decades. Ocean bottom seismometer data indicate that the barriers hosted intense microseismicity before the mainshocks and comprise multistrand faults and transtensional stepovers with 100- to 400- m lateral offset. …
摘自《科学》(Science)第392卷 第6799期 · 2026年5月14日,J. Gong et al.。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。