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According to the US Geological Survey there are approximately 1,000,000 earthquakes around the world every year (although the vast majority of these are so small they can only be detected by sensitive scientific equipment).

Of these 1,000,000, approximately 1/10 are large enough to be felt by humans. This means that on any day there will be on average 275 earthquakes around the world that can be felt.

Perhaps even more surprisingly, on average there are around 100 earthquakes a year that are large enough to cause damage (however they often don't because they occur away from inhabited areas). This means there is a little under a 1 in 3 chance of there being a "large" earthquake on any given day.

The British Geological Survey have published some data on the annual average frequency of earthquakes of varying magnitudes:

Description : Magnitude : Frequency per year

Great : > = 8.0: 1

Major : 7.0 - 7.9: 17

Strong : 6.0 - 6.9 : 134

Moderate : 5.0 - 5.9 : 1319

Light : 4.0 - 4.9 : 13,000 (estimated)

Minor: 3.0 - 3.9 : 130,000 (estimated)

Very minor : 2.0 - 2.9: 1,300,000 (estimated)

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7y ago
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11y ago

It is impossible to tell the number of earthquakes per year, as many earthquakes occur that are too small to be detected. It is estimated that millions of earthquakes happen annually.

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According to the U.S. Geological Survey (USGS) National Earthquake Center there are over a million earthquakes each year around the world -- that's on average 3,561 per day or 2.5 per minute. Only a portion of these are recorded (~20 - 30K per year) because most occur over remote areas or in the ocean.

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8y ago

The US Geological Survey estimate that there are several million earthquakes each year, but the vast majority of these will not be detected because they are too small in magnitude to detect or are larger, but occur to far away from a seismometer station.

From this number, they estimate that there are 500,000 detectable earthquakes in the world each year. 100,000 of these will be felt by humans and 100 of them will be large enough to cause damage.

Based on the above, there would be an earthquake of a magnitude that could be detected by seismometers once every 60 seconds, one detectable by humans approximately every 5 minutes and one that does some damage (assuming they occurred near a populated and developed area) every 3-4 days.
20,000 earthquakes in the earth each year.

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12y ago

Calculating the number of earthquakes in one year is a hard process because numerous earthquake happen each day around the world without anyone realizing it. Thousands of earthquakes that vary in size happen each year.

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10y ago

On average, there are roughly 20,000 - 30,000recorded earthquakes worldwide every year by the U.S. Geological Survey (USGS) National Earthquake Information Center.

On average only one of those earthquakes is 8 or higher each year.

However, the USGS estimates that several million earthquakes occur in the world each year and go undetected because they hit remote areas or have very small magnitudes.

To see a list of more recent (or historic) earthquakes, visit the USGS Earthquake Hazards Program.

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15y ago

More than one million a year, but many of these are too minor to be felt.

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10y ago

there are over 3 million earthquakes every year

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Q: How many earthquakes occur every year?
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