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According to the USGS about once per year on average.

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Q: How often does an 8.0 earthquake occur?
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Related questions

Where does earthquake occur often?

Most come through California or islands on the west coast.


Can an earthquake occur in the ocean?

Yes. An earthquake may occur in the ocean.


Can you compare the strength and frequency method for predicting earthquakes?

The Strength and Frequency Method only predicts how often an earthquake of a particular magnitude will occur. The Gap Hypothesis only predicts where another earthquake is most likely to occur along a fault line. Neither method will predict where the next earthquake will occur in the world, or predict an earthquake happening in a random spot, or predict both the location and strength of an earthquake.


What can occur hours or days after an earthquake?

Aftershocks can occur hours or days after an earthquake.


What is the relationship between intensity and magnitude of an and earthquake?

the relationship between earthquakes magnitude is the size or amount of energy an earthquake produces and has no connection to hour often earthquakes occur.


When would a tsunamic occur?

A tsunami is an ocean wave that is caused by an earthquake. It would occur after an earthquake.


When did the earthquake occur exactly in Japan?

on 11th march 2011 at 9.am earthquake occur exactly in japan


Small foreshocks that precede a major earthquake can occur .?

Small foreshocks that precede a major earthquake can occur


When is the next England earthquake?

It is impossible to predict when an earthquake will occur.


How long after an earthquake does nausea occur?

There is no requirement for nausea to occur due to an earthquake or any other natural phenomenon.


Does tsunamis occur when the moon is between the earth and the sun?

A tsunami could occur at any time, as they are often triggered by something like an earthquake. They are not always down to tidal influences.


Does earthquake occur often when two landforms slide past each other?

No. Earthquakes happen when two plates pull apart.