1.Earthquake - tremors and vibrations of the Earth's surface.2.Every year on Earth is about a million earthquakes 3.Most of them have at the bottom of the ocean, and therefore is not accompanied by disastrous consequences.4.Earthquakes are most known for the devastation that they are able to produce.5.Earthquakes are most known for the devastation that they are able to produce.6.The cause of earthquakes is the rapid shift of the site of the lithosphere.7.The majority of earthquakes occur near the Earth's surface.8.Every year on Earth is about a million earthquakes.9.Most of them have at the bottom of the ocean, and therefore is not accompanied catastrophic consequences (if an earthquake under the ocean without the tsunami).10.Recently there was information that earthquakes can be caused by human activity.