654 



M. P. DE MONTESSUS DE BALLOEE OJT [NOV. 1 896, 



Kg. 1. 



Map of the 



BRITISH ISLES 



SHOWING THE 



SEISM ICAL REG IONS. 



By F.de Moutessus 

 de Ballore. 





Lowlands 0/ Scotland 35 Km, 



I I I I Southern England 55 Km 

 I — I — ^ — I 



H— I— I— H Perthshire etc. 40.Km.. 

 ' — H Central England 49 Km. 



Moray Firth jS Km 



South Eastern Ireland 73 Km. 



Wales 76 Km. 



East Anglia 96 Km. 



1. Scottish Lowlands. 



^ = 63 kilom. (1886-1889). £* = 31 kilom. 

 (13 localities and 24 shocks.) 



This region is limited by the Firth of Clyde, Loch Long up to 

 Ben Voirlich, the valley of* Loch Lomond, the Firth of Forth, the 

 German Ocean, and then the Scottish Border from Berwick to 

 Longtown. 



2. Perthshire and North-eastern Coast of Scotland. 



S x = 72 kilom. (1852-1890). &*=35 kilom. 

 (21 localities and 465 shocks.) 



This region is bounded by the preceding one, by the North Sea, 

 then by a line of heights separating the Dee from the Don. The 



