2015年职称英语考试《理工类》阅读判断练习题(10)
Study Helps Predict Big Mediterranean Quake
Scientists have found evidence that an overlooked fault(断层) in the eastern Mediterranean is likely to produce an earthquake every 800 years as powerful as the one that destroyed Alandria in A 365.
Using radiocarbon techniques,simulations and computer models,the researchers recreated the ancient disaster in order to identify the responsible fault."We are saying there is probably a repeat time of 800 years for this kind of earthquake," said Ms.Beth Shaw,an earthquake scientist at the University of Cambridge,who led the study.Scientists study past earthquakes in order to determine the future possibility of similar large shocks.
Identifying the fault for the A 365 earthquake and tsunami is important for the tens of millions of people in the region,Ms.Shaw said.The fault close to the southwest coast of Crete last produced a big enough quake to generate a tsunami about 1300,which means the powerful one could come in the 100 years,she added in a telephone interview.
Ms.Shaw and her colleagues calculate the likely intervals by measuring the motion of either side of the fault to find how often such large earthquakes would have to occur to account for that level of motion,she said.Their computer model suggested an 8 magnitude quake on the fault would produce a tsunami that floods the coastal regions of Alandria and North Africa,the southern coast of Greece and Sicily all the way up the Adriati to Dubrovnik.This would be similar to the ancient quake in A 365 that caused widespread destruction in much of Greece and unleashed a tsunami that flooded Alandria and the Nile Delta,likely killing tens of thousands of people,she said.