EAKTHQUAKES ON THE PACIFIC COAST 109 



1883. October 24; 161i. 14iii.; VI. 



A severe shock at Cape Mendocino, Cal. — U. S. W. R. 



1883. October 30; in the morning; III. 



Two light shocks at Oakland, Cal.— U. S. W. R. Light shock at S. F. 

 — T. T. 



1883. November 11; 18h. 15m.; III. 



Slight shock at Poway, San Diego County, Cal.— U. S. W. R. 



1883. December 3; V. 



Severe shock at Shasta, Cal. — H. Ms. 



1883. December 12; 23b. 40m.; III. 



A slight shock at Los Angeles, Cal. — U. S. W. R. 



1883. December 12; 1:50 a. m.; V. 



• Heavy shock at Salinas, Cal. — H. Ms. 



1883. December 13; 



Los Angeles, Cal.— U. S. W. R. 



1883. December 16 f; 15b. 



A slight shock at Poway, San Diego County, Cal. — U. S. W. R. 



1884. January 3; 20b. 40m.; IV. 



A light shock, Portland, Oregon. — U. S. W. R. One shock. — P. 



1884. January 4; lib. 56m.; III. 



Verj^ light shock, Los Angeles, Cal. — U. S. W. R. 



1884. January 25; I. 



Professor George Davidson, of the U. S. C. S., reported from San 

 Francisco that at 19h. 24m. earthquake waves were indicated by 

 the levels of the astronomical instruments of the observatory, 

 and they continued for twent}' minutes. — C. G. R. 



1884. January 27; 23b. 30m.; VII. 



Moderate earthquake in Humboldt County, Cal. A second shock 

 five minutes later. — C. G. R. (Eureka, Hydesville, Cape Mendo- 

 cino.) 



1884. Marcb 15; 3b. 7m.; III. 



Very light shock, San Francisco, Cal. — C. G. R. 



1884. March 25; 4:40 p. m. 



Severe shock, San Francisco, Cal. (VI). At 5.17 another less severe, 

 Oakland and Berkeley (VI). Shocks felt from Santa Cruz to 

 Petaluma. — Fuchs. 4.44 p. m. — T. T. Professor Davidson gives 

 times of three shocks. At Gilroy, severe shock (VII) ; at Center- 

 ville, light (IV); at Santa Cruz, severe (V); at Petaluma, quite 



