Standing under a doorway during an earthquake is a common mistake. Here's what to do instead.

• A 4.8-magnitude earthquake shook the East Coast Monday, and many people ran for doorways.
• Standing in doorways isn't the safest reaction, and neither is running outside during shaking.
• Here's what you should do during an earthquake instead: Drop, cover, and hold on.

When a 4.8-magnitude earthquake rattled New Jersey, New York, and other East Coast states Friday morning, many people rushed for the nearest doorway.