What is DISS?
DISS is a geospatial repository of tectonic, fault, and paleoseismological information expressly devoted, but not limited, to potential applications in assessing earthquake hazards at the regional and national scales.
It represents faults in 3D;
all its records are fully parameterized;
it tends to completeness.
The core objects of DISS are:
The individual seismogenic source, a simplified and three-dimensional representation of a rectangular fault plane. Individual seismogenic sources are assumed to exhibit "characteristic" behavior with respect to rupture length/width and expected magnitude.
The composite seismogenic source, a simplified and three-dimensional representation of a crustal fault containing an unspecified number of seismogenic sources that cannot be singled out. Composite seismogenic sources are not associated with a specific set of earthquakes or earthquake distribution.
The debated seismogenic source is an active fault that has been proposed in the literature as a potential seismogenic source but was not considered reliable enough or its parameters could not be constrained in order for it to be included in any of the other categories.
The subduction system, a simplified and three-dimensional reconstruction of the complex subduction system. It is mainly represented by the depth contours of the subducted slab. Like composite seismogenic sources, subduction systems are not associated with a specific set of earthquakes or earthquake distribution.