PubSub Earthquakes

Using data provided by the U.S. Geological Survey and cooperating seismic networks, PubSub can tell you about any earthquake-related event at any of the 50 seismic regions around the globe.

Did you know?

It is estimated that there are 500,000 detectable earthquakes in the world each year. 100,000 of those can be felt, and 100 of them cause damage.
Each year the southern California area has about 10,000 earthquakes. Most of them are so small that they are not felt. Only several hundred are greater than magnitude 3.0, and only about 15-20 are greater than magnitude 4.0.
The earliest recorded evidence of an earthquake has been traced back to 1831 BC in the Shandong province of China, but there is a fairly complete record starting in 780 BC during the Zhou Dynasty in China.
From 1975-1995 there were only four states that did not have any earthquakes. They were: Florida, Iowa, North Dakota, and Wisconsin.
Most earthquakes occur at depths of less than 80 km (50 miles) from the Earth's surface.
The largest Earthquake in the world took place on May 22nd, 1960 in Chile.
A tsunami and a tidal wave are two different unrelated phenomenona. A tidal wave is a large sea wave produced by high winds, and a tsunami is a sea wave caused by an underwater earthquake or landslide (usually triggered by an earthquake) displacing the ocean water.