| dc.contributor.author | Yifang Cheng | |
| dc.contributor.author | Roland Bürgmann | |
| dc.contributor.author | Richard M. Allen | |
| dc.contributor.other | State Key Laboratory of Marine Geology, Tongji University | |
| dc.contributor.other | Department of Earth and Planetary Science, University of California | |
| dc.contributor.other | Department of Earth and Planetary Science, University of California | |
| dc.date.accessioned | 2024-06-30T11:27:04Z | |
| dc.date.accessioned | 2025-10-08T08:39:32Z | |
| dc.date.available | 2025-10-08T08:39:32Z | |
| dc.date.issued | 01-06-2024 | |
| dc.identifier.uri | http://digilib.fisipol.ugm.ac.id/repo/handle/15717717/36580 | |
| dc.description.abstract | Abstract The central San Andreas Fault (CSAF) exhibits a simple linear large-scale fault geometry, yet seismic and aseismic deformation features vary in a complex way along the fault. Here we investigate fault zone behaviors using geodetic observation, seismicity and microearthquake focal mechanisms. We employ an improved focal-mechanism characterization method using relative earthquake radiation patterns on 75,164 M l ≥ 1 earthquakes along a 2-km-wide, 190-km-long segment of the CSAF, from 1984 to 2015. The data reveal the 3D fine-scale structure and interseismic kinematics of the CSAF. Our findings indicate that the first-order spatial variations in interseismic fault creep rate, creep direction, and the fault zone stress field can be explained by a simple fault coupling model. The inferred 3D mechanical properties of a mechanically weak and poorly coupled fault zone provide a unified understanding of the complex fine-scale kinematics, indicating distributed slip deficits facilitating small-to-moderate earthquakes, localized stress heterogeneities, and complex multi-scale ruptures along the fault. Through this detailed mapping, we aim to relate the fine-scale fault architecture to potential future faulting behavior along the CSAF. | |
| dc.language.iso | EN | |
| dc.publisher | Nature Portfolio | |
| dc.subject.lcc | Science | |
| dc.title | 3D architecture and complex behavior along the simple central San Andreas fault | |
| dc.type | Article | |
| dc.description.pages | 1-12 | |
| dc.description.doi | 10.1038/s41467-024-49454-z | |
| dc.title.journal | Nature Communications | |
| dc.identifier.e-issn | 2041-1723 | |
| dc.identifier.oai | oai:doaj.org/journal:4cc93ea4eaab4fe68ba2ca287a79a430 | |
| dc.journal.info | Volume 15, Issue 1 | |
