COVID-19 is an emerging, rapidly evolving situation. This energetic earthquake sequence demonstrates the stress transfer process within the subducting lithosphere, and the distinct rupture characteristics of these great earthquakes illuminate differences in seismogenic properties and seismic hazard of such interplate and intraplate faults. Regions of rate-strengthening of friction and of a large characteristic distance in slip-dependence of friction behave as barriers or asperities. A great earthquake doublet and seismic stress transfer cycle in the central Kuril islands. The timing of the next great earthquake cannot be forecast with precision at present, although it appears to be decades away. A great earthquake doublet and seismic stress transfer cycle in the central Kuril islands .
Download PDF (3 MB) Abstract. Within minutes of this large underthrusting event, intraplate extensional earthquakes commenced in the outer rise region seaward of the Kuril trench, and on 13 January 2007, an event of moment magnitude 8.1 ruptured a normal fault extending through the upper portion of the Pacific plate, producing one of the largest recorded shallow extensional earthquakes. Temporal variations of the frictional resistance on subduction-zone plate boundary faults associated with the stick-slip cycle of large interplate earthquakes are thought to modulate the stress regime and earthquake activity within the subducting oceanic plate.
Modeled earthquake cycle stresses at y = 500 km for the down-dip unlocked (A-D) and center unlocked (E-H) models at different stages of the earthquake cycle. By Charles J. Ammon, Hiroo Kanamori and Thorne Lay. On 15 November 2006, an event of moment magnitude 8.3 ruptured the shallow-dipping plate boundary along which the Pacific plate descends beneath the central Kuril arc.
Smaller events of seismic or aseismic sliding occur during a great earthquake cycle. Here we report on two great earthquakes that occurred near the Kuril islands, which shed light on this process and demonstrate the enhanced seismic hazard accompanying triggered faulting. On 15 November 2006, an event of moment magnitude 8.3 ruptured the shallow-dipping plate boundary along which the Pacific plate descends beneath the central Kuril arc. Here we report on two great earthquakes that occurred near the Kuril islands, which shed light on this process and demonstrate the enhanced seismic hazard accompanying triggered faulting. Rupture propagation is often arrested in such a region and a great earthquake occurs later when the region is broken. Temporal variations of the frictional resistance on subduction-zone plate boundary faults associated with the stick-slip cycle of large interplate earthquakes are thought to modulate the stress regime and earthquake activity within the subducting oceanic plate. Temporal variations of the frictional resistance on subduction-zone plate boundary faults associated with the stick-slip cycle of large interplate earthquakes are thought to modulate the stress regime and earthquake activity within the subducting oceanic plate. This energetic earthquake sequence demonstrates the stress transfer process within the subducting lithosphere, and the distinct rupture characteristics of these great earthquakes illuminate differences in seismogenic properties and seismic hazard of such interplate and intraplate faults. Ammon CJ(1), Kanamori H, Lay T. Author information: (1)Department of Geosciences, The Pennsylvania State University, 440 Deike Building, University Park, Pennsylvania 16802, USA.
The cycle consists of an extended period of quiescence after a major earthquake, followed by a period of increased activity that leads to the cycle‐controlling earthquake and its foreshocks and aftershocks. 2 , the hue indicates the focal mechanism type corresponding to the modeled stress tensor, and the intensity indicates the magnitude of …
Within minutes of this large underthrusting event, intraplate extensional earthquakes commenced in the outer rise region seaward of the Kuril trench, and on 13 January 2007, an event of moment magnitude 8.1 ruptured a normal fault extending through the upper portion of the Pacific plate, producing one of the largest recorded shallow extensional earthquakes.