THE MULTI-FAULT SURFACE RUPTURE OF HOJEDK EARTHQUAKE, DEC. 2017 IN KERMAN PROVINCE, SOUTHEAST IRAN, THE BEDDING SLIP OF YOUNG FOLD

On December 2017, a triple earthquakes occurred in the Kerman province of SE Iran during 12 days (IRSC) (Table 1).Epicentral region is located in a flood plain (Miankouhi) which is enclosed by mountainous topography (Figure 1). There is no surface evidence of previous tectonic activity in this plain. Our InSAR modelling results showed the last event created a surface rupture. We traversed and mapped accurately the surface rupture of earthquake to determine the mechanism of the event and its related and causal structure. We opened two small trenches crossing the scarp to measure the geometric parameters of the fault plane. Our results indicate the reverse component (Figure 2) with a little displacement of right-lateral strike slip with NW-SE direction. We found a dispersed surface rupture (Figure 3) that can be classified into two categories and some surface features that suggested a reverse fault causing a bedding slip of young fold in area (Burbank and Anderson, 2001).

Keywords:

Hojedk earthquake , Surface rupture , Bedding slip , Kerman