130 EARTHQUAKES OX THE PACIFIC COAST 



1888. Jan nary 26? 

 Healdsburg, 10 sec. duration, S. F. Chronicle, Jan. 28. (Total eclipse 

 of the moon on January 28.) 



18S8. January 29; 10:35 p. m. 



Carson, Nevada, a slight shock (IV to V). Grass Valley, Cal.: the 

 same shock {11).— Grass Valley Tidings, Feb. 3. Carson 10.45 p. m., 

 S. W. to N. E. (III).— C. W. F. 



1888. January 30; 4:15 a. m. 



S. F. [not reported in newspapers.] — J. K. J. 



1888. February 1; 4 a. in. 



Point No Point Lighthouse, Washington. A slight shock.— Ms. 

 kindly communicated by U. S. L. H, Board. 



1888. February 18; 2:50 a. m. 



Fort Bragg: three severe shocks (V?); the first at 2.50, the others 

 at intervals of one or two minutes. Mendocino: three shocks; 

 the first at 2.55, the others at intervals of three or four minutes. 

 — (8. F. Bulletin, February 18.) Point Arena Lighthouse, 2.35 

 a. m.. W. to E. A violent shock (VII?). 



1888. February? about 4 a. ni, 



Menlo Park: sleepers waked (V or VI).— J. T. Doyle. 



1888. February 29. 



Mare Island Lighthouse, 2.50 j). m. Duration 2 seconds. Light 

 shock. Point Reyes Lighthouse, 2.35 p. m. Severe shock (VII?). 

 (Ms. communicated by U. S, Geological Survey.) 



1888. February 29; 2:51 p. m. 



S. F.: on Montgomery Street, people alarmed (V); Pine and Mason 

 streets, more severe (VI); Washington and Mason streets (VI). 

 Two waves on duplex seismometer (917 Pine Street). The mo- 

 tion of the earth was 



o— N. 68° W. to S. 68° E. b—S. 56° E. to N. 56° W. 

 The shock ft was most severe. 



Berkeley: not felt, not registered. — Oakland: (II.) — Belmont: not 

 felt.— San Eafael: (IV or V) 2.48 p. m., E. to W.— Santa Eosa: 2.55 

 p. m., violent; people ran out of houses (VI). — Petaluma: 2.55 

 p. m., walls cracked (VII), sound of an explosion heard. The 

 severest for many years. — Healdsburg: 2.44 p. m., light N. to S. — 

 Martinez: 2.45 p. m., two shocks one minute apart (VI). — /S. F. 

 Alia, Chronicle, Bulletin, Feb. 29th and Mar. 1. 



ISSS. March 7; 7:54 a. m. 



Pasadena: 7.58 a. m. (VI); from N. W. to S. E., duration three 

 seconds. — Ea.st Pasadena, 7.54 a. m., N. W. to S. E. — Los Angeles: 



