Discover interesting facts about how big earthquakes can get, why earthquakes happen, and why they're so hard to predict.

A magnitude 4.5 earthquake was reported in South Texas on Wednesday night ... the U.S. Geological Survey Community Internet Intensity Map, the earthquake was felt by many in San Antonio.

A magnitude 4.5 earthquake was reported in South Texas on Wednesday night ... the U.S. Geological Survey Community Internet Intensity Map, the earthquake was felt by many in San Antonio.

A magnitude 4.5 earthquake rocked southern Texas Wednesday night, striking nearly 45 miles southwest of the city of San Antonio. The US Geological Survey (USGS) detected the seismic event at 9 ...

A magnitude 4.5 earthquake has rattled southern Texas in the vicinity of San Antonio, the U.S. Geological Survey (USGS) ...

In 1995, a notable earthquake shook the Northeast. NEWS CENTER Maine journalist Cheryl Doyle looked into the science behind them. Here's a look back at that report.

California is riddled with a number of fault lines that frequently cause earthquakes, including Arrowhead, Waterman Canyon, ...

This USGS map shows where people reported feeling the earthquake ... fault planes, the ground slips—releasing waves of energy. Being located far from the boundaries of the North American Plate ...

The East Coast was rocked by another earthquake on Monday ... or may be completely buried. A fault line is where the fault cuts the Earth's surface. Map Shows Rising Home Insurance Costs by ...

It was also felt in New Hampshire and Rhode Island, a USGS map showed. The earthquake with a magnitude ... "We don't sit on any active fault lines," WBZ-TV executive weather producer Terry Eliasen ...

Earthquakes have been recorded in almost every part of the state, but there are clusters where they are more common, particularly in West Texas. The region has the most fault zones in the state ...