146 EARTHQUAKES ON THE PACIFIC COAST 



almost exactly northwest and southeast. The record consists of 

 a single nearly straight line. 



San Jose: two shocks felt about 5 o'clock a. m., sufficiently heavy 

 to awaken sleepers; from north to south. 



1890. January 18; Napa. 



Two slight shocks. Vibrations from north to south. 



1890. Santa Barbara; 3:30 p. m. 



Eeported in the Chronicle as " quite a heavy shock." 



1890. January 33; Chabot Observatory; 4:18 i I™- »• m- 



Time observed by George B. Fox. The seismographic record indi- 

 cates the total actual displacement of the pendulum to have been 

 2.8 mm., in a direction from " north by east " to " south by west." 

 The tracing is made up of five small waves (small with reference 

 to the total length of the tracing), which look as if they might 

 have resulted from a simple harmonic motion having displace- 

 ments in an east and w^est direction. 



1890. January 23; 4 a. m. 



Berkeley: slight shock. 



1890. February 1; 5:15 p. m. 



Admiralty Head Lighthouse, Washington: light shock. 



1890. Santa Ana, January 24. 



The San Jose Mercury reports: 



A very distinct shock, lasting 4 seconds, w^as felt this afternoon at 

 1.15; and at 4.30 o'clock there was a larger and more pronounced 

 shock, lasting ten seconds. The direction was northeast and 

 southwest. 



1890. February 5; San Diego; 10:15 p. m. 



" Distinct shock; vibrations from east to west." 



1890. Santa Ana; 10:14 p. m. 



" Shock lasted eight seconds. Vibrations from northeast to south- 

 west." 



1890. February 5; San Bernardino. 



" Three distinct shocks, preceded by a low rumbling noise. The 



shock (?) lasted for four or five seconds." 

 The three reports above are all from newspapers. 



1890. February 9; San Bernardino; 4b. Gni. a. m. 



Following is the report published in the Times-Index of San Ber- 

 nardino of February 10: 



" Quite a heavy shock yesterday morning at 6 minutes past 4 o'clock. 

 The vibrations were north and south." 



