58 EARTHQUAKES ON THE PACIFIC COAST 



1861. March ? 



Tejon, Cal.— B. Ms. 



1861. April 29; 4:10 a. m. ? p. m. ? III. 



Slight shock at S. F., Cal. — B. Ms. — Sacramento Union, May 2, 1861. 



1861. April 29; 9:25 p. m.; V. 



Smart shock at Mendocino, Cal.— B. Ms. — Sacramento Union, May 11, 

 1861. 



1861. May 4; p. m.; III. 



Slight shock in the neighborhood of San Francisco. During this 

 week the tides were unusually low^. — Perrey. 



1861. Jnne 13; 5:25 a. m.; III. 



Slight shock at S. F., Cal. — B. Ms.— Sacramento Union, June 15, 1861. 



1861. July 2; 



Alameda, Cal. — B. Ms. — Sacramento Union, July 8, 1861. 



1861. July 3; 4:11 p. m. 



Severe shock, followed by two light shocks, at San Francisco, Cal. — 

 T. T. For several days light shocks were teR in and near S. F. — 

 J. B. T. 



A light shock in San Francisco (IV?), but very heavy, indeed, at 

 Dohertj^'s Eanch, in Amador Valley, near where Livermore now 

 is (IX?). — Verbal account of E. C. Hopkins. Adobe houses seri- 

 ously injured; men in the fields were thrown down. — Hittell's 

 Resources, p. 43. Stockton, also. — B. Ms. 



1861. July 3; 8 a. m.; July 4 and 5, at nigrht; July 7, at uigbt. 



Slight shocks in Alameda, Cal. — B. Ms.^Sacramento Union, July 15, 

 1861. 



1861. July 4?; 161i. 11m. 



Severe shock of earthquake occurred at San Francisco. It con- 

 sisted of three distinct waves, following each other in very rapid 

 succession. More severe in the San Ramon Valley, east of the city. 

 It opened a large fissure in the earth, and a new spring of water. 

 For several days after there were light shocks. J. B. T. — Perrey. 



1861. September 16; 2 a. m. 



Violent earthquake at Sierra Valley, Nevada County, Cal. — B. Ms. — 

 Sacramento Union, September 30, 1861. 



1861. October 26? November 26? 



Humboldt, Cal. — B. Ms. iS". F. Bulletin, December 2, 1861, gives the 

 date as October 26; Sacramento Union gives November 26. The 

 same shock is referred to by both papers. 



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