50 EARTHQUAKES ON THE PACIFIC COAST 



1857. Jannary 20; VI. 



Severe shock, Ft. Tejon. — B. Ms. — Los Angeles County History, p. 545. 



1857. Janmary 20; 3:30 p. m. 



Mission San Juan. — Perrey. 



1857. January 21; III. 



15 or 20 miles N. W. of San Benito. About 7h. 20m. a. m.? p. m.? 

 a slight shock lasting a few seconds. — Dr. Canfield's Diary. 



1857. Jannary 21; evening:; V. 



Smart shock at Mariposa, Cal. — J. B. T. 11 p. m. — Perrey. 



1857. February 5; 7 p. m. 



San Francisco, Cal.— J. B. T.— T. T. 6.55 p. m. Two shocks at S. F., 

 Oakland, and Stockton, Cal. — Perrey. 



1857. Marcli 5; abont 7 p. m. 



Two short shocks in San Francisco, Cal. — Perrey. 



1857. March 14; 151i.; V. 



Severe shocks at Santa Barbara and Montecito. — J. B. T. 



1857. March 23; 12:27 a. m.; III. 



A light shock in San Francisco, Cal. — J. B. T. 



1857. April 1; VI. 



15 or 20 miles N. W. of San Benito. About 3.35 a. m. a severe shock 

 lasting about 8 sec. — Dr. Canfield's Diary. 



1857. April 24?. 



A shock was recently felt at San Gabriel and San Jose, Cal. — Perrey. 



1857. May 2; morning^. 



Two shocks at Los Angeles. — B. Ms. 



1857. May 3; 22h.; VI. 



Smart shock at Los Angeles and El Monte, Cal. — J. B. T. " Violent 

 shock." — Perrey. 



1857. May 23; 



Slight shock at Los Angeles (HI). Severe shock at Fort Tejon (VI). 

 —J. B. T. " Four shocks at Los Angeles." — B. Ms. 



1857. June 14; VI. 



Severe shock at Humboldt Bay, Cal. Several severe shocks at the 

 Penal Island (Carmen), Gulf of Cal.— J. B. T. 



1857. July 5; 71i.; VI. 



Severe shock at San Francisco, Cal. — J. B. T. 



