1843.] Memoir on Indian Earthquakes. 277 



shook, and I was very much afraid of its falling, after having read the 

 accounts from our Army near Peshawur. At that place a number of 

 houses have been destroyed, and many lives lost from the last Earth- 

 quake. 



" Although this shock did not last so long as the one of the 19th of 

 last month, in my opinion it was much more severe for the time. 



I am, &c. &c. 



J. Petkie." 



The rate of propagation of this shock appears to have been very 

 rapid, as no perceptible difference in its period of arrival was observed 

 at any of the following stations ; namely, Simla and Mussoorie in the 

 Himalayas, Deyrah in the Deyrah Dhoon, Saharanpore and Berkeri. 

 The nature of the shock would indicate that the seat of the disturbing 

 force must have been within the rocky crust of the earth, or at a very 

 small distance indeed beyond it, as such a supposition accounts best 

 for the peculiar "jarring" sensation characteristic of the shock. All 

 who experienced the Earthquakes of the 19th of February and 5th of 

 March, concurred in opinion, that they came from opposite directions, 

 and as the former was from West to East, the latter must have been, 

 as before stated, from Northto South, and this is in some measure con- 

 firmed by the fact stated in Sergt. Petrie's letter, that the Southern 

 door of the inner room of the Berkeri canal bungalow was driven open 

 by the shock, as it would receive the first impulse. 



3. Earthquake of the 21st op May, 1842. 



The Earthquake of the 21st of May, experienced in the Lower Pro- 

 vinces, appears to have been only a slight shock, and its direction, in so 

 far as this can be determined from the facts communicated, was from 

 South-west to North-east. The most Westerly point from which I 

 have received any intelligence of its effects is Juanpore, a station about 

 forty miles to the North-west of Benares, the latter being in lat. 25° 

 30' N., long. 83° 1' E. 



The following letter from Vincent Tregear, Esq. furnishes an ac- 

 count of the shock as felt at Juanpore : — 



