336 



MIDDLEMISS : KANGRA EARTHQUAKE. 



sufficient for our purpose, which, as it appears in plan, is represented 

 in the sketch map, fig. 46. 



Fig. 46. 



That plan shows a striking surface peculiarity at the two points 

 where the epicentres are situated, namely, the great inbaying of the 

 younger Tertiary formation of the Sub-Himalaya towards the higher cen- 

 tral regions of the mountains. The line of the " main boundary " fault 

 separating these Tertiaries from the very old Himalayan rocks of that re- 

 gion, may be observed to take a huge sweep inwards and eastwards from 

 the Ravi River to Drang, and then to return almost in a N.— S. sweep 

 by Mandi, Suket and Sabathu, and round the foot of the Simla 

 mountain spurs. The Tertiaries then pursue a normal direction until 

 the Dehra Dun area is reached, when there occurs another but much 

 smaller, inbaying of them towards the central area. Nowhere else 



