EARTHQUAKES ON THE PACIFIC COAST 95 



1S72. December 14, 15, IG; VII. 



Olympia, W. T. Professor George Davidson kindly refers me to 

 a,n account of these earthquakes in the Weekly Pacific Trihune, 

 Olympia, December 21, 1872: "In an unoiiicial report to Professor 

 Davidson, at San Francisco, Captain Lawson says, December li, 

 1872: Shock occurred precisely at 9h. 40y2ni. It commenced with 

 a slight movement, gradually increasing for 18 or 20 seconds. 

 Then came the heavy shock, lasting 4 or 5 seconds; then it grad- 

 ually decreased. In six minutes after the first shock there was 

 another, followed by two others, one minute apart. At lOh. 12m. 

 40s. there was another shock, and after 11 p. m. there were five 

 others. During the night other shocks were reported (1 did not 

 feel them) at 3 and 3 o'clock. On Sunday evening, December 15, 

 at (5h. o7i/.m., a light shock. December 16, at 9h. 17m. 30s. a. m., 

 another light shock. This shock was felt as far south as Eugene, 

 in Oregon, and as far north as British Columbia — probably even 

 in Alaska. In Victoria and elsewhere on Vancouver Island the 

 shock is said to have been heavier than at any other point heard 

 from. In Olympia we have heard of but a single article broken 

 or damaged by the shock. This was a statuette, which was 

 thrown from top of a "whatnot" and smashed on the floor. In the 

 Seattle stores, we are informed, considerable quantities of crock- 

 ery and glassware w^ere broken. From what is so far known, the 

 earthquake was confined mainly to the Puget Sound Basin, thence 

 extending north and south with a gradually decreasing force, 

 until it disappeared in a distance of 400 or 500 miles." The direc- 

 tion of the shock (December 14) at Olympia was south to north 

 at first, then southeast to northwest. 



1872. December 15; 



A shock was felt at various places near Puget Sound, W. T. — C. G. R. 



1872. December 16; 



Visalia. — B. Ms. 



1873. December 16 to 1873, January 4; 



Walla Walla. Light shocks almost daily.~C. G. R. 



1872-1875. (March); 



No shocks at San Diego in this period. — B. Ms. [except 1873, Oct. 

 12.— E. S. H.]. 



1873. Jannary 9; II. 



Tacoma. — P. 



1873. February 2; 3:30 p. m.; IV. 



Light shock, San Francisco, Cal., lasting 5 seconds.^ — C. G. R. 



1873. February 3; 3 p. m.; IV. 



Light shock at San Francisco; severe at San Jose and Santa Clara 

 (V).— C. G. R. Two shocks.— S. F. D. 



