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.

Second 6.0+ magnitude quake strikes Puerto Rico amid heavy seismic activity Tuesday morning

A 6.4-magnitude earthquake struck Puerto Rico before dawn on Tuesday, and was followed three hours later by an aftershock measuring 6.0. They are the largest in a series of quakes that have struck the U.S. territory in recent days and caused heavy damage in some areas. 

Rainfall brings brief relief, offers hope to those battling Australia fires

Sudden rainfall and cooler temperatures Monday in southern Australia gave hope to those battling the devastating wildfires that have ravaged the country.  

Earthquake jolts Puerto Rico

A 5.7-magnitude quake jolted Puerto Ricans out of their beds Monday morning, the strongest quake yet to hit the U.S. territory that has been shaking for the past week.

3 dead, 7 missing in building downed by Philippine quake

Rescuers pulled out two bodies Monday from a three-story building that collapsed in a strong earthquake in the southern Philippines and scrambled to find at least seven more people who were trapped inside.