Stress and displacement fields in the outer wedge induced by megathrust earthquakes
نویسندگان
چکیده
منابع مشابه
Linking megathrust earthquakes to brittle deformation in a fossil accretionary complex
Seismological data from recent subduction earthquakes suggest that megathrust earthquakes induce transient stress changes in the upper plate that shift accretionary wedges into an unstable state. These stress changes have, however, never been linked to geological structures preserved in fossil accretionary complexes. The importance of coseismically induced wedge failure has therefore remained l...
متن کاملcontrol of the optical properties of nanoparticles by laser fields
در این پایان نامه، درهمتنیدگی بین یک سیستم نقطه کوانتومی دوگانه(مولکول نقطه کوانتومی) و میدان مورد مطالعه قرار گرفته است. از آنتروپی ون نیومن به عنوان ابزاری برای بررسی درهمتنیدگی بین اتم و میدان استفاده شده و تاثیر پارامترهای مختلف، نظیر تونل زنی(که توسط تغییر ولتاژ ایجاد می شود)، شدت میدان و نسبت دو گسیل خودبخودی بر رفتار درجه درهمتنیدگی سیستم بررسی شده اشت.با تغییر هر یک از این پارامترها، در...
15 صفحه اولSimple Crack Models Explain Deformation Induced by Subduction Zone Megathrust Earthquakes
Following the 2010 Maule and 2011 Tohoku earthquakes, many studies have examined the relation between megathrust earthquakes and subsequent deformation. Here, we apply simple models based on mode II shear cracks, including approximated effects of the free surface to study induced deformation during coseismic and early postseismic stages. We distinguish between buried and surface ruptures repres...
متن کاملApplying Critical Wedge Theory to the Sunda Megathrust
Geodetic studies of subduction megathrusts have shown that the pattern of interseismic strain is heterogeneous, varying between locked seismic and creeping aseismic sections. Paleoseismology reveals that large earthquakes have occurred repeatedly on the same section, implying that variability in interface frictional properties are long-term features. Based on stick-slip frictional laws this in ...
متن کاملSlow-slip evolves into megathrust earthquakes in 2D numerical simulations
[1] Slow slip events (SSE) in many subduction zones incrementally stress the adjacent locked megathrust, suggesting that they could potentially either trigger or evolve into damaging earthquakes. We explore this with 2D quasidynamic simulations with rate-state friction, dilatancy, and coupled 1D pore-fluid and heat transport. Steady-state weakening friction allows transient slip to nucleate, bu...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Geophysical Research: Solid Earth
سال: 2014
ISSN: 2169-9313
DOI: 10.1002/2013jb010398