84 L. A. COTTON. 



In addition to these there are two other shocks which 

 affected the Sydney district, and these appear to have been 

 felt more severely at Mulgoa and Double Bay respectively. 

 The particulars are as follows : — 



Mulgoa Earthquake. 

 Date. Intensity at Mulgoa. 



26th March, 1886. III. 



Double Bay Earthquake. 

 Date. Intensity at Double Bay. 



4th June, 1890. IV to V. 



Unfortunately no records appear to have been kept prior 

 to 1880 nor since 1891. 



The only account of an earthquake in the Sydney district 

 prior to 1880 with which the writer is acquainted is that 

 kindly supplied to him by Professor Wood. This account 

 appeared in Historical Records of New South Wales, and 

 because of its relation to the recent Kurrajong earthquake 

 described in this paper is quoted in full as follows: — 



"From 'Historical Records of New South Wales,' page 315, 

 Vol. IV.— Hunter and King, 1800, 1801, 1802. 



Parramatta, 25th August, 1801. 

 Sir — About 11 o'clock at night on 12th February, 1801, I was 

 awoke by an earthquake, which gave repeated shocks for about 

 three minutes, though in other places not far from me it was said 

 not to last above a few seconds. At Sydney I believe it was but 

 little felt, but at the Hawkesbury it was felt as severe as with me. 

 It came from the east and proceeded to the west — that is, it began 

 at the eastern end of the house and went off at the western. It 

 first began like thunder at a distance, and shortly after the floor 

 began to move under me with such violence as I think would have 

 thrown me down had I been standing up or walking. Fortunately 

 no further damage was done than a few brick houses a little 

 shattered, where it was felt with less violence than with me. Had 

 the like happened in England the consequence must have been 



