Powerful earthquake near Alaska triggers tsunami warning

A powerful earthquake struck in the Pacific Ocean south of the Alaska Peninsula on Monday, according to the U.S. Geological Survey. The 7.5-magnitude earthquake prompted the National Tsunami Center to issue a tsunami warning for south Alaska and the Alaska Peninsula.

Preliminary 3.4-magnitude quake strikes near Lake Elsinore

A preliminary 3.4-magnitude struck roughly six miles from Lake Elsinore Monday morning and was felt throughout Southern California, the U.S. Geological Survey reported. 

Small earthquake rattles northwest Florida

USGS data shows the magnitude 4.0 quake happened just after 11 a.m. and was centered about two miles northwest of Mount Carmel, Florida, a town just north of Pensacola along the Florida-Alabama border.

3.2 magnitude earthquake reported outside Detroit Beach in Monroe County

The United States Geological Survey is reporting that a 3.4 earthquake struck in southeast Michigan Friday night outside of Detroit Beach in Monroe County.

6.1-magnitude earthquake strikes in ocean west of Mexico

The U.S. Geological Survey says a relatively strong earthquake has been recorded in the Pacific Ocean west of Mexico.

A cataclysmic eruption: Looking back at Mount St. Helens 40 years later

The eruption was the worst volcanic disaster in the history of the conterminous United States, according to the United States Geological Survey.

Vegas-Reno highway cracked, closed after 6.5 earthquake in Nevada

The main highway between Las Vegas and Reno was damaged and closed early Friday following a magnitude 6.5 earthquake in a remote area of Nevada that a researcher called the largest quake in the state in 65 years.