Map of Magnitude 7.0 – 7.9 Earthquakes through July, 2010
Comparing earthquake occurrences so far this year with the comparable number that have occurred in the same time frame averaged over the past ten years as well as averaged since 1900, indicates an increase of approximately 28% (past 10 years) and 31% (since 1900) of all magnitudes 5.0 and greater lumped together and averaged.
While looking at the averages below, one category stands out even higher than the rest. That is, magnitude 7.0 to 7.9, having had 13 so far this year. Of note, there were three magnitude 7+ earthquakes on the same day in the Philippines (23-Jul-2010), followed by a 6.5 the next day. Nine of the thirteen magnitude 7+ earthquakes were located along the Pacific tectonic plate boundary.
Magnitude 5.0 to 5.9 earthquakes are up 22% compared with the past 10 year average and 44% compared with the past 110 year average.
Magnitude 6.0 to 6.9 earthquakes are up 23% compared with the past 10 year average and 33% compared with the past 110 year average.
Magnitude 7.0 to 7.9 earthquakes are up 68% compared with the past 10 year average and 47% compared with the past 110 year average.
Magnitude 8.0 to 9.9 earthquakes are in line with average with one having occurred this year.
Statistics gathered from the USGS.
The previous earthquake analysis from June
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