KAUTH QUAKE MEASUREMENTS IX PIT AND OX SUTtPACE. 



2nd 



(I\'.) lvi])})l('s. X.S. (Jdmponeiit. 



III (irr.), tlic two rip]»!*'-^ in;irk('(I 4 mikI n in tlic snrf:i('0-<:.T()imd 

 <li:i2r;!iii liriNc unite»! into one in tlic ])it dinu'i'iiin, and tliose marked 

 S. 9, 10 in tiic fornuT do not exist sej);irately in tlie latter. 



ri'tliese ealenlations l)e eori'eet, or at least a])])roxiniate, it wonld 

 a])]iear that tlie maximum Ncloeities and maximum ae<'elerations are 

 eonsideral)Iy uTeater tor ri])])les tlian lor l:ir£>'e undulations. Sucli a 

 ditterenee will he found also to l)e tlie ca.se witli otlier severe eartli- 

 (iuake.s. 



(2.)~A])ril 16th, 1S87.— A very small earth(|uake 



