148 EAETHQUAKES ON THE PACIFIC COAST 



Los Gatos: a severe earthquake at 4.50 o'clock. The wave was east 

 to west. Houses creaked, ghiss rattled, and many were aw^akened 

 out of a sound sleep (VI). Considerable alarm was felt. 



Santa Eosa: a sharp earthquake at 5 o'clock this morning, lasting 

 about five seconds. The vibrations were southeast to northwest. 



Benicia: three distinct shocks at 4.50 o'clock this morning. The 

 first was quite strong and lasted several seconds, and was fol- 

 lowed by two lighter ones. The vibrations seemed to be north 

 and south. 



Newark: a severe shock at 4.45 o'clock. The vibrations were from 

 north to south and the duration was about ten seconds. 



Concord: at 4.40 o'clock this morning a sharp shock, succeeded by a 

 tremble that lasted fully two minutes. The direction of the 

 shock was southeast to northwest; duration, thirty seconds. At 

 about 3 a. m. a light shock was felt. In the night also another. 



San Leandro: the heaviest shock since 1868 occurred at 4.46 o'clock 

 this morning. A low rumbling sound preceded the first and 

 heaviest shock, which lasted about one and a quarter minutes. 

 The first half minute the oscillations were light and easy. Then 

 for a quarter of a minute they were heavy, after which they 

 gradually became less and less. Ten minutes after the first 

 shock another slight shock was felt, and six minutes later another. 

 The oscillations were from north to south. The damage includes 

 one chimney thrown down and some crockery broken (VII). 



1889. 6:19:39 p. m. 



Oakland: slight shock (I) momentary. — P. G. Blinn. 



1889. August 7; 3:43; 11 p. m. 



Mount Hamilton: very slight shock suspected by E. S. H. (I?). 



1889. Ang^nst 13; 4:43 a. m. 



Oakland: sufficient to awaken a few sleepers (III, IV?). Appears 

 to have been very local in character, and confined to Alameda and 

 Central and West Oakland, as it was not felt in San Francisco or 

 East Oakland. " Slight." — Cal. S. W. Service Review. 



1889. Angnst 23; 2:32:46 p. m. 



Mount Hamilton: very slight shock. Felt by some persons and not 

 by others in the same room; time, 2.32.46.— E. S. H. Time, 2.32.48. 

 — J. M. S. Ewing machine not started. Very small record on the 

 duplex pendulum seismograph (I). 



18S9. August 27; 6.15 p. m. 



Southern California: not felt at Mount Hamilton. The' following are 

 dispatches to the San Francisco papers: 



i 



