which is caused by the randomness of the earthquake - powerzi/adapter GitHub Wiki
The earthquake is becoming more and more frequent?
It is commonly believed that the global takes place every year about 5 million earthquakes, the average down every day there are more than 10000, but most are not people perceive. According to the American seismology joint research statistics, global level 6 above average annual earthquake, nearly 200 times seven or more levels higher than average annual nearly twenty times, eight or more levels higher than average annual nearly three times. The earthquake series, the less quantity. Look at the United States geological survey (USGS) 2000 ~ 2009 worldwide in grade 5 or above the number that earthquake statistics, each year the number of earthquake no rules, but roughly 2007 fall can be in more frequent earthquake year. Since 2010, the earthquake quantity has not been shown to have unusual number, even if the number of small differences, which is caused by the randomness of the earthquake.
The vast majority of the earthquake occurred in the plate boundary, of which 70% of the global earthquake distribution in the circum-pacific seismic belt "; Second 15% distribution in the Eurasian seismic zone "; And 5% in mid-ocean ridges, The last about 10% distribution in plate internal. This is the statistical regularity. But because scientists are still not clear earthquake generation mechanism and principle, so the next earthquake in which place and which time occurs, it is not accurate prediction. So scientists also think that earthquakes are random.
Take a look at a few times this year happened earthquake, the Solomon islands, ryukyu islands, Chile are in Pacific seismic belt, Haiti also lies in the plate boundary, so this four large event is quite geological principle, is normal phenomenon of earthquake. 1:http://powerzi.com/12v-2a-desktop-type-ac-dc-adapter-p-30.html 12V2A AC DC Adapter
Some more psychological factors
Some people think that: earthquake changed much. In fact the earthquake or the earthquake, it has rules and randomly happening, but it never comes place is densely populated or sparsely populated. Just, because in recent years occurred in densely populated areas of the earthquake seismic let us more than before the attention.
In 2007, global and above the level of the earthquake reached four times, is the 21st century and has the most earthquakes above the level of a year. Looked from the digit, more unusual, but who heard about the earthquake? At that time who ever worry about its abnormal? As for domestic earthquake, who remember on November 14, 2001 occurred in the kunlun mountains in qinghai's 8.1 magnitude earthquake? The earthquake is China for nearly half a century to one of the biggest earthquake. But because it took place in the sparsely populated regions in western China, personnel property casualty is small, so is not popular mention.
From the psychological factors point of view, it is not difficult to understand. Wenchuan earthquake caused the disaster has brought people great psychological shadow, people "earthquake" one word highly sensitive and began to pay attention to various and earthquake related information, the original and no abnormalities, earthquake, and therefore looks more and more intensive. The 8.8 magnitude earthquake in Chile, produce a variety of suspicion is understandable - if the same earthquake happened in the central Pacific underpopulated Alaska, not necessarily will cause so much strong echoes the.
Baidu stick, someone in Chile earthquake one month before it to "predict". According to this phenomenon, I think he is mainly according to seismic seismogenic probability (earthquake occurs mainly in the Pacific seismic zone, and Chile in 1960 there was one of the biggest 9.5 magnitude earthquake) and guess what, unless he took out the exact evidence. Earthquake prediction is one of the world's problems (prediction is not allowed, no forecast), not a country said he broke through this difficult problem. But our online but there are "superior, big beetle" in predicting earthquakes, once won the lottery, he was everywhere flatter. For these so-called forecast, as the public, we need to ask: what is the evidence? Scientific evidence? Take out the scientific evidence to! But as the forecasters, rumors spread, want to ask his conscience: you dare to responsible for? Shanxi earthquake caused by rumors people wait for seismic phenomenon, is also very rare in the world, and to other countries around the world, now is almost not earthquake prediction.
At the beginning of 2010 earthquake is indeed a great earthquake, also produced a great disaster. But the results may not have great evil, small earthquakes can not only cause small earthquake disaster, the key lies in where. Seismic activity is abnormal, belongs to the seismic frequency statistical problems, we do not want to because of the earthquake many attention and understanding for the earthquake activity is abnormal, not equal to frequent earthquake disasters. In general, the earthquake site is normal, frequency in the statistical sense is also normal.
After the pain after the wenchuan earthquake, we more attention than before their habitats - the earth. China is not the country with the largest earthquake, earthquake disaster is one of the most serious countries, we are concerned about the earthquake, learn more practical earthquake emergency knowledge, learn how to protect yourself in an earthquake.