Seismogenic layer

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In geophysics and seismology, the seismogenic layer or seismogenic zone covers the range of depths within the crust or lithosphere in which most earthquakes originate.[1] The thickness is heavily dependent on location. For oceanic crust, the seismogenic layer thickness can be Script error: No such module "convert"., and for continental crust, it ranges from Script error: No such module "convert"..[2] It is also important to note that at subduction zones, there is one seismogenic layer being pushed on top of another. This can result in extremely deep earthquakes up to Script error: No such module "convert". in depth.[3] The base of this layer represents the downwards change in deformation mechanism from elastic and frictional processes (associated with brittle faulting) to a generally aseismic zone where ductile creep becomes the dominant process. The location of this change in deformation style is sometimes referred to as the brittle–ductile transition zone.[4]

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