Lesson xxxv.] EARTHCIUAKES. 47 



served to burst forth at the Fojo ; and the quantity 

 of smoke was always proportioned to the noise. 

 On visiting the place from whence the smoke was 

 seen to arise, no signs of fire could be perceived 

 near it. 



At Oporto (near the mouth of the river Douro), 

 the earthquake began about 40 minutes past nine. 

 The sky was very serene j when a dreadful hollow 

 noise like thunder, or the rattling of coaches at a 

 distance, was heard, and almost at the same instant 

 the earth began to shake, fn the space of a minute 

 or two, the river rose and fell five or six feet, and 

 continued to do so for four hours. It ran up at 

 first with so much violence, that it broke a ship's 

 hawser. In some parts the river opened, and 

 seemed to discharge vast quantities of air; and the 

 agitation in the sea was so great about a league 

 beyond the bar, that air was supposed to have been 

 discharged there also. 



St. Ube's, a sea-port town about miles south 

 of Lisbon, was entirely swallowed up by the re- 

 peated shocks and the vast surf of the sea. Huge 

 pieces of rock were detached at the same time from 

 ihe promontory at the west end of the town, which 

 consists of a chain of mountains containing fine 

 jasper of different colours. 



The same earthquake was felt all over Spain, 

 except in Catalonia, Arragon, and Valencia. At 

 Ayamonte (near where the Guadiana falls into the 

 Bay of Cadiz), a little before 10 o'clock on the 1st 

 of November, the earthquake was felt ; having 

 been immediately preceded by a hollow rushing 

 M 4 noise. 



