52 STUART : THE! SRIMANGAL EARTHQUAKE OF 8TH JUI Y 1918. 
and Batavia was more than 3 9 km. per second. But if the effect 
of the Akyab sympathetic shock is considered, the rate of propaga- 
tion of the long waves need not necessarily have been so great. 
Akyab is situated A = 4° (or approximately 280 miles) from 
Srimangal and for this distance L-P is approximately 1 minute 15 
seconds. The long waves from Akyab would be expected therefore to 
reach Batavia nearly 1 minute 15 seconds earlier than those from 
Srimangal. 
