Seismic sources and stress transfer interaction among axial normal faults and external thrust fronts in the Northern Apennines (Italy): A working hypothesis based on the 1916-1920 time-space cluster of earthquakes
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- 作者：Marco Boninia ; mbonini@igg.cnr.it" class="auth_mail" title="E-mail the corresponding author ; mbonini@geo.unifi.it" class="auth_mail" title="E-mail the corresponding author ; Giacomo Cortia ; Dario Delle Donneb ; Federico Sanic ; Luigi Piccardia ; Gianfranco Vannuccid ; Riccardo Gencoc ; Luca Martellie ; Maurizio Ripepec
- 关键词：Northern Apennine ; 1916&ndash ; 1920 earthquake cluster ; Seismic sources ; Axial normal faults ; External thrust fronts ; Static stress transfer
- 刊名：Tectonophysics
- 出版年：2016
- 出版时间：12 June 2016
- 年：2016
- 卷：680
- 期：Complete
- 页码：67-89
- 全文大小：5564 K
文摘
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We investigate the seismic sources in axial and outer zones of Northern Apennines.
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We examine the Coulomb stress changes produced by the main earthquakes of 1916–1920.
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Stress changes are small but may have contributed to trigger specific earthquakes.
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M ≥ 6 quakes transmit stresses from the axial faults to outer thrusts and vice versa.
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The major 1917–1920 extensional ruptures loaded the outer thrusts.