BO Alteration of level in Cutch [Jan. 



It is an interesting observation connected with this earthquake as 

 with that of 26th August 1833, that although both were peculiarly felt 

 at Arracan, as well as toward the hills on the northwest side of Ben- 

 gal, yet they were comparatively little felt in several intermediate situa- 

 tions. At Ghirotty where Col. Coote and a regiment of Europeans 

 were at the time encamped the earthquake of 1762 is described as most 

 alarming, the waters in the rivers and tanks being thrown up to the 

 height of 6 feet, although at Chandernagore, only a few miles distant 

 in a southeast direction, its effects were scarcely perceptible. 



The earthquake of 26th August 1833, which was attended with the 

 peculiar eruption already adverted to from one of the volcanoes near 

 Kyouk Phyoo, was more severely felt at Mongir, where the fort and 

 several houses were injured, than in any intermediate position, which 

 might lead us to suppose that although the volcanic energy of the igne- 

 ous bands we have pointed out may have become extinct, or at least 

 comparatively dormant as they recede from the seas on either side of 

 India, yet that they are still the peculiar seat of occasional disturbance. 



The province of Cutch already adverted to as forming the western 

 boundary of the carboniferous zone, lost a considerable portion of its 

 surface, which subsided suddenly during an earthquake in 1819, while at 

 the same time an adjoining tract was raised to a higher position than it 

 had previously occupied*. 



Although the surface may seem to have acquired greater stability in 

 recent times in proportion as we proceed inland from the points at which 

 the two volcanic bands are intersected by the seas at Cutch, and Chitta- 

 gong, yet as far as we are prepared to judge from unquestionable data, 

 the amount of disturbance which has taken place appears to increase as 

 we proceed from Cutch towards the east, and from Chittagong towards 

 the north, until we arrive at that situation at which both bands meet 

 and cross each other ; and thus by a species of synthesis, we find the 

 common focus of disturbance to be situated in the Kdsya mountains, 

 about the very position in which we havfe the most direct and unques- 

 tionable proof of concentrated action, the circumstances of the raised 

 beach being sufficient evidence of these mountains having been raised 

 to nearly twice their former height since the commencement of the 

 tertiary period. 



It remains for the present uncertain whether so great a change in the 



physical features of India has been effected by paroxysmal violence, such 



as occasionally even in our own times has been known to destroy one 



portion of the land, and to raise up another, or by a slow and gradual 



* Lyell, II. 237, also see Capt. Burnes' repor ton Cutch.— Ed. 





