﻿C. G. Rockwood, Jr. — American Earthquakes. 11 



March 31. — About 3 h , a very light earthquake (III) at Fall 

 Brook, San Diego County, California. — U. S. Weath. Ren. 



April 2. — 1 h 25 m , a light shock (IV) at Merced and Fresno, 

 California. A very light shock (III) was reported at Sacramento, 

 at 1 h 15 m , which, although somewhat widely separated, may have 

 been part of the same. 



April 3. — 10 h 15 m , two very light shocks (III), northeast to 

 southwest, at Sacramento, California. — IT. S. Weath. Rev. 



April 7. — In southern California a light shock (IV) was 

 reported from Bakersfield, Kern County, at 2 h 30 m , direction 

 north-south, with rumbling; and from Santa Barbara and San 

 Buenaventura at 2 h — at the latter place two shocks, direction 

 northeast-southwest. 



April 11. — 20 h 5 m , 120th meridian time, a strong earthquake 

 (VI) was very generally felt in central California. It was felt 

 at numerous places from the coast to the vicinity of the Sierra 

 Nevada, and from Marysville on the north to Monterey and Han- 

 ford on the south, with an extension of the boundary toward the 

 southeast so as to include Keeler on Owens Lake, whicli is east 

 of the Sierra. It was more severe in a tract extending from 

 southwest to northeast across the district above indicated, includ- 

 ing Monterey, Salinas, Merced and Stockton. Here it was strong 

 enough to awaken sleepers, to stop clocks, to swing chandeliers, 

 and to cause people to rush from their houses in alarm. At the 

 more distant places, as Marysville, San Rafael, San Francisco, 

 Hanford and Keeler, it was much less strong, being reported as 

 slight, long and slow, very slight, very perceptible, a gentle 

 tremor. The directions reported were : north-south at lone, 

 Stockton, Merced, Salinas; east-west at Sacramento, San Fran- 

 cisco, San Jose and Monterey, although at Sacramento two 

 observers said north-south; southwest-northeast at San Rafael 

 and northwest-southeast at Keeler. The duration varied from 

 two seconds at Keeler to twenty seconds at San Jose and San 

 Francisco, and fifteen seconds at lone, and in several places two 

 shocks were noticed. The one minute and ten seconds duration 

 reported from Merced was probably exaggerated. In the outline 

 of the area of this earthquake given upon the following map, 

 it is quite probable that the eastern boundary would also have 

 been convex if fuller reports had been available from that direc- 

 tion, but that is a much more thinly populated portion of the 

 State, from which there were no reports. 



April 13. — 19 h 20 m , at Unalashka, Alaska, a light shock (IV), 

 lasting only a few seconds, reported by the U. S. Signal Service 

 observer. — IT. S. Weath. Rev. 



April 16. — 9 h , at St. Fidele and Murray Bay, on the lower St. 

 Lawrence, a light shock (IV). — McGill College Obs'y. 



