North Carolina was hit by two earthquakes recently, but you may not have felt them. Here's where they hit and more about quakes in the state.

A powerful magnitude 7.8 aftershock off Russia’s Kamchatka Peninsula that arose from July’s magnitude 8.8 earthquake is raising concerns about possible tsunami impacts, although risk appears to be wan

UN officials say aid workers are still in a “race against time” to remove rubble and rebuild after a devastating earthquake struck eastern Afghanistan east last month. The 6.0-magnitude quake

The strongest earthquake ever recorded in South Carolina — and on the East Coast of the United States — was a devastating 7.3 in Charleston in 1886. That quake killed 60 people and was felt over 2.5 million square miles, from Cuba to New York and Bermuda to the Mississippi River, according to the state EMD.

Earthquakes continue to rumble just offshore of the Oregon coast. The latest earthquake, measured at 5.1 in magnitude, was recorded just after 12:30 p.m.

A t least seven earthquakes have rattled the coast of Alaska in the last 24 hours, according to the United States Geological Survey (USGS). The quakes range in magnitude from 2.5 up to 5.2 and stretch across the southwest tip of the state along the Gulf of Alaska. There were no immediate reports of damage or injuries.

Surprisingly, they found that only around 10% of a quake’s energy causes the physical shaking most people associate with earthquakes. Overall, anywhere between 68 and 98% of the energy goes into generating heat around a quake’s epicenter. Less than 1% of that energy is used to break up rock and create new surfaces.

Two powerful aftershocks struck eastern Afghanistan 12 hours apart, triggering fears of more deaths after earthquakes killed about 2,200 people.

“Iowa is in one of the most seismically quiet regions of the U.S.,” Clark said. While they are rare, earthquakes are possible in Iowa because of several fault systems throughout the state, however none of them are considered active, Clark said.