Today, earthquakes are becoming more common worldwide due to the Earth’s increased seismic and geophysical activity. Seismic charts show a clear upward trend in large global earthquakes over the past few years, according to the America Daily Herald
and the U.S. Geological Survey’s
Analysis of seismic charts
show that the number of major earthquakes has been growing gradually over the past 10 years and that the numerous major earthquakes that we are expected to have in 2012 could surpass all previous years. According to the USGS’s
research, the number of magnitude 5.0 to 9.9 earthquakes reached 2,117 in 2010. In 2000, by contrast, the number of such quakes recorded by USGS was 1,505.
Why is the planet Earth experiencing more major earthquakes? Some argue that within the last 20 years, we have had an increase in the number of earthquake reporting due to the tremendous increase in the number of seismograph stations worldwide and the global communications Improvements in various earthquake detection technologies, according to America Daily Herald
However, these arguments ignore the fact that ancient people around the world have always been writing about earthquakes and natural disasters since 3,000 BCE, which was a few centuries following the invention of writing by the Sumerians living in Mesopotamia (3,500 BCE). They may not have employed the scientific geophysical language of seismology, but careful analysis of their explanations of events shows that they were describing earthquakes. Therefore, the evidence for an increase in earthquakes worldwide is very strong.
Finally, according to the USGS
long-term records (since about 1900), we should expect to see about 17 major earthquakes (magnitude 7.0 - 7.9) and one great earthquake (magnitude 8.0 or above) within the next few years.