Brood XIV, one of the largest swarms of periodical cicadas, is set to rise from the ground for the first time in 17 years.

A large brood of periodical cicadas is due to emerge in the spring of 2025. These maps show where people should expect to see ...

Brood XIV is one of 15 broods of periodical cicadas that emerge every 13 or 17 years. This year they'll be in states such as ...

Several major and numerous minor earthquakes have occurred in the midwestern and eastern United States ... Below is a map showing the risk of damage by earthquakes for the continental United States.