EARTHQUAKES ON THE PACIFIC COAST 45 



1855. July lO; SOli. 15m.; VIII. 



Severe shock at Los Angeles. Four shocks were felt in about twelve 

 seconds; two unusually heavy sea waves rolled in at Point San 

 Juan, just after the last shock. — J. B. T. This shock was accom- 

 panied by rain.^B. Ms. Bells at San Gabriel Mission Church 

 thrown down. — B. Ms. See August 12. 



1S55. July 13; III. 



Slight shock at Gibsonville, Siei'ra County, Cal. — S. F. Daily Herald, 

 July 23, 1855. 



1855. August 12; 9:30 a. m.; III. 



A light shock at Georgetown, Cal.; four light shocks at Georgetown, 

 from Juljr 10 to August 12, dates not recorded. — J. B. T. 



1855. August 26; 1 p. m. 



Sonoma County; Petaluma. — B. Ms. — Sacramento Union, September S, 

 1855. 



1855. August 27; 3 p. m.; VI. 



Violent shock, Sonoma County, Cal. — Sacramento Union, September 8, 

 1S55. Also violent at Petaluma and at Mission San Francisco de 

 Solano. 



1855. August 28; 



San Francisco, Cal. — B. Ms. 



1855. October 5; 7%h. p. m. 



San Francisco. — Perrey. 



1855. October 21; 191i. *45m,; V. 



Smart shock in San Francisco. Much commotion in the water of the 

 bay a few minutes preceding the shock. — J. B. T. 



1855. October 27; 3 p. m.; Ill and IV? 



A light shock in the Valley of Clear Lake; a light shock at Downie- 

 ville. Sierra County; more severe shock at Goodyear's Bar. — J. B. T. 



1855. December 5; 11:20 a. m. 



A shock at Humboldt Bay, Cal.— J. B. T. 



1855. December 11; 4b.; VI. 



San Francisco; quite severe at Mission Dolores. — J. B. T. 



1855. December 21; lib, 20m. a. m. 



Humboldt Bay, Cal. — Perrey. 



1856. January 2; lOh. 15m.; VII. 



Smart shock at San Francisco, Cal.— J. B. T. Light shock at 10 

 a. m. — T. T. " Severe." — B. Ms. — San Francisco Daily Herald, Jan- 

 uary 3, 1856. Goods were shaken from the shelves. — B. ]\Is. 

 9 a. m. and 10 a. m. — Perrey. 



