After a "swarm" of over 30 earthquakes hit Fillmore Utah on Sunday morning, Utahns are worried about more in the future.

More than 30 earthquakes have rattled the area around Fillmore, California, in a rapid-fire swarm that has put Ventura County ...

Earthquakes usually strike without warning. But sometimes they come in clusters — dozens or even hundreds of small quakes concentrated in one area over days or weeks. Geologists call these clusters ...

A massive swarm of bees suddenly descended on a city in southern Israel, prompting scientists to examine what triggered this ...

An earthquake swarm is a series of small quakes that “may occur in a region for months without a major earthquake,” according to Britannica.. Getty Images/iStockphoto A swarm of a half-dozen ...

PHOENIX — Many Arizonans know the sound: A loud buzzing from above could mean a bee swarm is near, and the insects are on the move. In Maricopa County, which includes Phoenix and Mesa, fire and ...

A swarm of 18 earthquakes ranging from magnitude 2.6 to 4.2 struck the coast of Washington early Sunday morning, with the ...