1843.] Memoir on Indian Earthquakes. 1027' 



Tabular view of the Earthquakes of the Aravulli Tract. 



Focal Tract. 



W 



Date of 

 Earthquake. 



Remarks. 



Aravulli Moun- 

 tains,from about 

 27° to about 

 28§° North la- 

 titude. 



15th July, 1505, 



Ditto, 1720, 



24th Oct. 1831, 

 4th Jan... 1842, 

 Ditto, .. „ 

 4th July, „ ? 

 25th Ditto, ,, 

 26th Sept. „ 

 27th Ditto, „ 

 6th Nov. 



Very severe. 



Very severe. 



Smart. 



Slight. 



Ditto. 



Ditto. 



Ditto. 



Ditto. 



Ditto. 



Ditto. 



Experienced at Agra. 

 Experienced at Delhi. 



I have already mentioned in Part I, that indications of active vol- 

 canic forces are found in that portion of the Aravulli Hills now under 

 notice ; but our information relative to the general structure of the 

 range is as yet very meagre, so much so, as not to warrant me in dwel- 

 ling on the subject, and I therefore pass on to narrate the Earthquakes 

 of the next tract. 



5.—- Earthquakes of the Delta of the Indus. 



From the numerous volcanic phenomena presented throughout the 

 tracts of country bordering on, and forming the Delta of the Indus, the 

 frequent occurrence of Earthquake shocks might have been anticipated, 

 but it is not until the year 1819 that any have been recorded, so far 

 as I have yet ascertained. The various circumstances attending the 

 great shock of the 16th June 1819, have already been ably brought 

 before the scientific public by different authors, and a careful analysis 

 of the whole has been made by Mr. Lyell in his " Principles of Geo- 

 logy, Chapter XIV." Since it is my object to present in this memoir 

 a complete view of Indian Earthquakes, in so far as existing informa- 

 tion will permit, it is necessary that I should repeat the accounts 

 already given, and it is my intention to do so, in as full detail as the 

 various published notices will admit of. 



We have no accounts of the effects of this Earthquake at any point 

 farther Westward than in the province of Cutch, although from its 

 violence, it is probable, that it extended to Sinde and Mekran. Com- 

 mencing however with Cutch, its course will be traced Eastward, and 

 its effects at various spots detailed. 



Cutch. — The greatest force of the Earthquake under notice, appears 

 certainly to have been exerted within the province of Cutch. Nearly 

 every town and fort in it were seriously injured, many levelled with 

 the ground, and among their ruins numerous lives were lost. The first 

 and greatest shock occurred at a few minutes before 7 p. m. on the 

 16th June, but shocks of inferior violence continued until the 20tb, 

 when the volcano called Denodur, situated thirty miles North-west 



