Statistics bear out the fact that the number of earthquakes have increased substantially over the last few years.
This may be partially due to the exponential increase in the number of seismographic stations that has sprung up globally as well as improved global communications which translate into better analysis.
Apart from normal seismic activity resulting in earthquakes, it has been noted that the rise in fracking operations throughout the world contributes to its increase, with pole shifts and the axis rotation of the earth representing a major threat leading to greater frequency and magnitude of these events, including extreme weather.
In fact concern about the earth’s magnetic field is causing alarm according to scientists who claim it has weakened over the last 200 years and could be predictive of a shift in the earth’s poles.
This magnetic field is located deep in the earth’s core and extends thousands of kilometres into space and affects global communication, animal migration and weather patterns. http://www.dailymail.co.uk/sciencetech/article-2545465/Forget-global-warming-worry-MAGNETOSPHERE-Earths-magnetic-field-collapsing-affect-climate-wipe-power-grids.html
Back to earthquake statistics, the websites, World Earthquakes and earthquake- report, amongst others, report on these occurrences on a daily basis, providing the date, location, and its magnitude.
Scrutinising these stats reveal that these earthquakes are occurring in all parts of the globe with varying magnitude from mild, moderate and through to severe.
Chile reported recently of earthquakes occurring and reoccurring over a 72 hour period.