As if we didn’t have enough to worry about with giant murder hornets invading the US and a global pandemic, millions of 17-year cicadas will emerge from the ground this year.

As many as 1.5 million cicadas per acre may emerge, and people living in Southwest Virginia, parts of North Carolina and West Virginia could witness this unique phenomenon, Virginia Tech says in a news release.

Luckily, cicadas are harmless to humans. At most, the noise they make could become a nuisance.

“Communities and farms with large numbers of cicadas emerging at once may have a substantial noise issue,” said Eric Day, Virginia Cooperative Extension entomologist in Virginia Tech’s Department of Entomology.

Read more at CNN.