"Clustering" of earthquakes remains issue of debate
English.news.cn 2010-03-10 07:24:23 FeedbackPrintRSS
by Xinhua writer Mao Lei
A man walks past debris in front of a destroyed house in the village of Okcular. A powerful pre-dawn earthquake buried sleeping villagers in remote eastern Turkey, claiming at least 51 lives and leaving dozens injured, officials said. (Xinhua/AFP, File Photo)
SAN FRANCISCO, March 9 (Xinhua) -- A string of earthquakes hitting Haiti, Chile and as recently as Turkey this year have fueled the speculation that the "clustering" of temblors may signal the Earth is entering a new period of earthquake cycle, but whether the theory stands is still an issue of debate within the science community.
SIGNS OF INCREASED EARTH ACTIVITY
Stephen S. Gao, a geophysics professor at Missouri University of Science and Technology in the United States, is one of the scientists who argued that the Earth has been witnessing increased activity.
"It is clear that the Earth is significantly more active over the past 15 years than the 20 years before," he told Xinhua in a recent interview.
Gao's statement is based on the study of the so-called "moment release," a measure of the product of the area ruptured by an earthquake and the displacement between the two sides of the fault.
His calculation shows that the moment release per year between 1995 and 2010 is about four times as large as that between 1975 and 1994. Even when the 2004 Sumatra earthquake in Indonesia and its large aftershocks and this year's 8.8-magnitude earthquake in Chile are not counted, the moment release over the past 15 years is still twice as large as that of the previous two decades.
Gao believed that the increased activity could simply be natural fluctuations of the stress field in the Earth's lithosphere, or the outer solid part.
"We do not have a long-enough record of instrumentally determined earthquakes to determine if this is true or not for a longer period," noted the geophysicist.
"Although we are still trying to come up with some explanations for the higher activity over the past 15 years, I do not think global warming or human activities have much to do with it," he added.
We are happy to say the Bible has an explanation for it:
Mat 24:4 And Jesus answered and said unto them, Take heed that no man deceive you.
Mat 24:5 For many shall come in my name, saying, I am Christ; and shall deceive many.
Mat 24:6 And ye shall hear of wars and rumours of wars: see that ye be not troubled: for all these things must come to pass, but the end is not yet.
Mat 24:7 For nation shall rise against nation, and kingdom against kingdom: and there shall be famines, and pestilences, and earthquakes, in divers places.
Mat 24:8 All these are the beginning of sorrows.
Mat 24:9 Then shall they deliver you up to be afflicted, and shall kill you: and ye shall be hated of all nations for my name's sake.
Mat 24:10 And then shall many be offended, and shall betray one another, and shall hate one another.
Mat 24:11 And many false prophets shall rise, and shall deceive many.
Mat 24:12 And because iniquity shall abound, the love of many shall wax cold.
Mat 24:13 But he that shall endure unto the end, the same shall be saved.
Mat 24:14 And this gospel of the kingdom shall be preached in all the world for a witness unto all nations; and then shall the end come.
Luk 21:7 And they asked him, saying, Master, but when shall these things be? and what sign will there be when these things shall come to pass?
Luk 21:8 And he said, Take heed that ye be not deceived: for many shall come in my name, saying, I am Christ; and the time draweth near: go ye not therefore after them.
Luk 21:9 But when ye shall hear of wars and commotions, be not terrified: for these things must first come to pass; but the end is not by and by.
Luk 21:10 Then said he unto them, Nation shall rise against nation, and kingdom against kingdom:
Luk 21:11 And great earthquakes shall be in divers places, and famines, and pestilences; and fearful sights and great signs shall there be from heaven.
Mar 13:5 And Jesus answering them began to say, Take heed lest any man deceive you:
Mar 13:6 For many shall come in my name, saying, I am Christ; and shall deceive many.
Mar 13:7 And when ye shall hear of wars and rumours of wars, be ye not troubled: for such things must needs be; but the end shall not be yet.
Mar 13:8 For nation shall rise against nation, and kingdom against kingdom: and there shall be earthquakes in divers places, and there shall be famines and troubles: these are the beginnings of sorrows.
Mar 13:9 But take heed to yourselves: for they shall deliver you up to councils; and in the synagogues ye shall be beaten: and ye shall be brought before rulers and kings for my sake, for a testimony against them.
Mar 13:10 And the gospel must first be published among all nations.