114 COGGIfl i;i;o\VX: THE BURMA EARTHQUAKES OF MAY 1912. 



tremors of the surrounding ground preceding the large waves, 

 and which arc not otherwise perceptible to the unaided senses! 

 They may correspond to the " preliminary tremors " recorded by 



seismographs. 



VISIBLE UNDULATIONS OF THE GROUND. 



The rate of travel of the earthquake has been shown in an 

 earlier paragraph to have been about 2 miles 



uudKLj of tte Per Smm(l Surface filiations due to the 

 ground were observed. passage of such waves would not be visible. 



Yet, as in the case of the ( 'alifornian earth- 

 quake, there is positive testimony that much slower undulations 

 were observed.(') 



The following examples may be cited : 



Mandaky.— (Mr. Swinhoe). He noticed the road heaving in 

 gentle undulations. 



Mandahiy. —(Mr. Armitage). He distinctly felt the rise and 



fall in the ground similar to the' sensations felt in a. 



lift, but the alterations were very rapid. 

 M ( nuhhu,.~[\\v. F, 0. Beresford-Parncll). He saw the earth 



moving towards him in waves about 1 foot high and 



about 2 feet distant fom each other. 



M!/ohnm,/.-(Mr. T. .Johannes). The platform felt l.ke a ship 

 at sea. 



X«whs«n.-(Kv. I'.urne). He saw the waves approaching from 



the south-south-west. 

 Maymyo.-(8k W. F. Gates). The earth seemed to be in 



ripples, as if disturbed by waves of high frequencv 

 MorjoL-iMr. Colston). The ground is described as rising and 



falling like the waves of the sea. 

 Mogoh--(Ms. James). He observed the surface of the ground 



m waves, the crest of which appeared to face towards 



the west. 



Other less positive statements of the same kind will be found 

 m the descriptive part of the report. 



1 L»c. cit,. Vol. 1, p t , if, p . 380. 



