The crast is constantly shifting, generating earthquakes which take a frightening toll in lives and property every year.

Some slide smoothly past one another, generating frequent but very small earthquakes along the fault zone.

If such a zone were to be left completely alone, it would generate significant earthquakes spontaneously.

The two masses are still moving and regularly generate small earthquakes usually less than 3.0 on the Richter Scale along its length.

The San Andreas fault, by comparison, generates large earthquakes on the average of every 160 years.

The kinetic energy from this impact probably generated earthquakes registering 13 on the Richter scale.

There is particular cause for concern in regions which can generate strong earthquakes, but only rarely.

No eruption I've ever heard of generates earthquakes of this magnitude.

The water creates pressure and eventually ruptures that generate earthquakes.

All of this geological activity creates instability and generates occasional earthquakes.