Natural Disasters

The strongest Gulf hurricane since Katrina barrelled ashore in southwestern Louisiana early this morning (Aug. 27). Floodwaters may not recede for days.

After the Bighorn Fire burned a large area near Pima County, Arizona, a river of dark sludge rushed toward town.

Taal volcano in the Philippines has erupted, and scientists are worried it could soon erupt even more violently, putting almost a million people at risk.

A destructive tornado hit northern Dallas on Sunday, Oct. 20, causing widespread power outages and significant property damage.

Earthquakes that shook Southern California in July set a nearby fault in motion.

The Saffir-Simpson hurricane only goes up to Category 5. But in theory, winds from a powerful hurricane could blow the scale out of the water, scientists say.

What causes the sun's 11-year cycle of sunspot activity? According to two new studies, it could be literal tsunamis of plasma.

New Orleans is bracing for a tropical storm that is expected to hit tonight or tomorrow, bringing with it chances of intense flooding.

A mud-volcano island that burst from the waters off the coast of Pakistan during a deadly earthquake in 2013 has disappeared beneath the waves.

Even so, the chance of big quakes near Ridgecrest, California, decreases with time.