Facebook now offers an easy way to say ‘I’m okay’ after a disaster. Here's how it works.

In times of disaster or crisis, people turn to Facebook to check on loved ones and get updates.

That’s why the company launched Safety Check, a new feature that makes it easy for people to confirm that they’re okay.

When something catastrophic happens, Facebook will determine a user’s location and send them a push notification if it thinks that they were in an affected area. That’s based on where people have checked in, their last location shared through the “Find Friends” feature and where they’re accessing the internet from. Once they get that notification, users can respond that they’re okay, or that they’re not in the affected area.

Here's video explaining how it works.