- Seismogenic layer
The Seismogenic Layer is the range of depths within the
crust orlithosphere over which mostearthquake s are initiated. Typically incontinental crust this is in the uppermost 15 km. The base of this layer represents the downwards change in deformation mechanism from elastic and frictional processes associated with brittle faulting to a generallyaseismic zone where ductile creep becomes the dominant process. The location of this change in deformation style is sometimes referred to as theBrittle-ductile transition zone .
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