Although the earthquake magnitude was large, no surface fault was associated with the event (Kumahara et al. 2016).
The rotated displacement on some of these faults is associated with growth units upward.
Each of these faults is associated with a criticality value.
However, the lateral extension of plate-boundary faults is associated with mature fault rocks such as foliated cataclasite and ultracataclasite that are present in underplated oceanic basalts (Ikesawa et al. 2005; Ujiie et al. 2007).
There are several models proposing that the earthquake generation on faults is associated with episodic fluid-related over-pressurization mechanisms in accordance with constant stress accumulation (e.g., Rice 1992; Byerlee 1993).
The deep faults are associated with catastrophic earthquakes that occurred at Verny (1887), at Kashgar (Kashi; 1902), in the northern Tien Shan chains (1911), and at Chatkal (1946) and Khait (1948).
Most of the faults have strike slip movement, with those in the northern plateau being sinistral and those in the southern part dextral, although some normal faults are associated with graben and pull-apart basins.
Faulting was associated with fluid rock interaction, as evidenced by kinematically related veins observable in the damage zone and fluid channelling within the fault core, where an orange brownish cataclasite matrix can be observed.
Faulting was associated with volcanic activity, which in the central part of the region formed the vast and complex structures of the massifs of Cantal and Monts Dore, where the Sancy Hill (Puy de Sancy), at 6,184 feet (1,885 metres), is the highest summit of the Massif Central.
Meanwhile, regions associated with thrust and strike-slip faulting was associated with low/medium b-values.
