554 C. Davison — The Exmoor Earthquake. 



information are given below, 1 but my thanks are specially due to 

 the Kev. W. Hook of Porlock, Mr. A. L. Ford of Lynton, and 

 Mr. J. H. Barrow of Challacotube, for several additional records 

 which they were kind enough to send me. 



It is possible that there may have been two preparatory shocks. 

 I have only received one record of each, and, in accordance with the 

 usual rule, their occurrence should not be regarded as quite oertain, 

 though they are probably of seismic origin: (1) January 22, 

 about 10 p.m., at Arlington, a slight shock, with a noise like 

 underground thunder; (2) January 23, about 8.40 a.m., at Berry - 

 narbor, a series of small waves, duration one second, intensity in, 

 preceded slightly and accompanied by a noise like that of a heavy 

 cart rumbling by, the shock and noise being less intense than those 

 of the principal earthquake at 9 a.m. Both places lie near the 

 north-west end of the disturbed area of the latter, Arlington being 

 close to the southern boundary fault of the Morte Slates, and Berry- 

 narbor about half a mile north of the northern fault. 



Nature of the Earthquake. — Detailed accounts of the shock are 

 few in number, and, as will be seen from the map, observations of 

 any kind are wanting in the epicentral district. As a rule, the 

 shock consisted of a tremulous motion, which gradually increased in 

 intensity and then died away. This was the case even at Berry - 

 narbor and Brushford, which are near opposite ends of the disturbed 

 area. At East Anstey, the shock began with a tremulous motion 

 for about three seconds, after which came two prominent vibrations, 

 and then a series of gradually decreasing vibrations for about 

 four seconds. From Eastdowne there comes a somewhat similar 

 observation, a tremulous motion gradually increasing in intensity 

 and then as gradually dying away, and in the middle two distinot 



1 Authorities. — Arlington, Eev. T. de L. Sprye ; Asliford, Mr. H. C. 

 Fletcher ; Berrynarbor, Eev. E. Churchill ; Bishop's Nyinpton, Eev. E. A. Lester ; 

 Bittadon, Eev. E. Braund ; Bratton Fleming, Mr. J. H. Barrow ; Brayford, 

 Mr. J. Carter; Brendon, Mr. A. L. Ford; Brushford, Eev. C. S. Barber; 

 Burdick, Mr. W. E. Smyth ; Carhampton, Eev. "W. P. Michell ; Challacombe, 

 Mr. J. H. Barrow, Mr. J. Carter; Charles, Mr. J. Carter; Chittlehampton, 

 Mr. H. E. Seymour; Combmartin, Eev. H. C. Jeuoure ; Comyn Hill, Miss M. 

 Slesser, Mr. J. G. "Wood; Countisbury, Eev. H. F. Eamsay; Cutcombe, Eev. J. J. 

 Large ; Dulverton, Eev. E. J. Collyns ; East Anstey, Eev. J. Owen ; Eastdowne, 

 Eev. E. H. Giles ; Exford, Mr. A. L. Ford, Eev. J. J. Large, Eev. J. Owen ; 

 Exton, Eev. F. E. Warren; Ford, Eev. E. P. Stanley; Goodleigh, Mr. G. 

 Mugford; Hawkridge, Mrs. Thomas; High Bray, Mr. J. Carter, Eev. C. P. 

 "Whitaker ; Eentisbury, Eev. H. C. Jenoure ; Loxhore, Eev. G. 0. Eamsay ; 

 Lucott, Eev. W. Hook; Lynmouth, Mr. E. B. Jeune ; Lynton, Eev. "W. E. Cox, 

 Mr. A. L. Ford ; Mariansleigh, Eev. A. Winnifrith ; Martinhoe, Eev. E. "W. Oldham ; 

 Minehead, Eev. A. H. Luttrell ; Molland, Mr. S. J. Case ; Muddit'ord, Mr. T. E. 

 de Suerin ; Nethercott, Eev. "W. P. Anderson ; Northmolton, Dr. Spicer, Eev. A. 

 Winnifrith ; Oare, Eev. H. F. Eamsay ; Parracombe, Mr. J. H. Barrow ; Porlock, 

 Eev. "W. Hook ; Selworthy, Eev. F. Hancock; Skilgate, Eev. C. A. B. Harris; 

 Southmolton, Mr. J. H. Barrow, Mr. A. L. Ford, Eev. J. Owen ; Stoke Pero, 

 Eev. W. Hook ; Tarr, Eev. W. P. Anderson ; Timberscombe, Eev. E. J . 

 Crosswell ; Trentishoe, Mr. J. H. Barrow ; Upcott, Eev. W. P. Anderson, 

 Mr. Tapp; West Buckland, Dr. Spicer ; "Westlandpound, Mr. W. E. Smyth; 

 Winsford, Eev. W. P. Anderson, Eev. J. J. Large, Mr. A. Tudhall ; Withvpool, 

 Mr. A. Tudhall ; Wootton Courtenay, Mr. E. Brazier. 



