How many earthquakes are there per year?
Several million.
Several million earthquakes occur each year around the world. Many of these are undetected because they hit remote areas or have a very small magnitude. This is according to the U.S. Geological Survey or USGS. From 1900 to 2010, the USGS reports the following annual frequency of earthquakes:
Magnitude 8 o higher | Once a year |
Magnitude 7 to 7.9 | 17 times per year |
Magnitude 6 to 6.9 | 134 times per year |
Magnitude 5 to 5.9 | 1,319 times per year |
Magnitude 4 to 4.9 | About 13,000 times per year |
Magnitude 3 to 3.9 | About 130,000 times per year |
Magnitude 2 to 2.9 | About 1.3 million times per year |
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