1915-16.] The Ochil Earthquakes of the Years 1900-1914. 277 
(145) 1912, April 20, 2 a.m. 
A rather strong shock, felt at Airthrey and Dunblane. At Airthrey 
it consisted of two parts, the first lasting four seconds, the second, two 
seconds, with an interval of two seconds between. 
(146) 1912, April 20, 2.5 a.m. 
A shock, of less intensity than the preceding, felt at Airthrey, Doune, 
and Tullibody. 
(147) 1912, April 20, 2.8 a.m. 
A shock (intensity 4), felt at Dunblane and in the surrounding district. 
(148) 1912, April 20, 2.10 a.m. 
A shock of less intensity than the preceding, but strong enough to 
awaken people, was felt at Alva, Doune, Dunblane, and Menstrie. A 
bumping noise was heard with it at Menstrie. 
(149) 1912, April 20, 2.12 a.m . 
A bumping noise, heard at Menstrie. 
(150) 1912, April 20, 2.14 a.m. 
A slight shock was felt at Dunblane, and a noise was heard at Menstrie. 
(151) 1912, April 20, 2.18 a.m. 
A bumping noise, heard at Menstrie. 
(152) 1912, April 20, 4.15 a.m. 
A bumping noise, heard at Menstrie. 
(153) 1912, April 21, 1.5 a.m. 
A slight tremor was felt at Alva, Dunblane, and Menstrie, and was 
accompanied by the usual bumping noise at Menstrie. 
(154) 1912, April 21, 2.47 p.m. 
A bumping noise, heard at Menstrie. 
(155) 1912, April 22, 7.17 a.m. 
A slight tremor, accompanied by the usual bumping noise, felt at 
Menstrie. 
