How many people we’re killed in the earthquake that hits Mexico?

The head of Mexico's civil defense agency has lowered the number of people confirmed dead in Tuesday's earthquake. Luis Felipe Puente now says 217 people were killed. Earlier he said the death toll was 248. He gave no explanation for the revised number.

Thirty-two years to the day after an earthquake killed thousands of people in Mexico, a powerful quake rattled the country's central region Tuesday. Buildings shivered in Mexico City, and dozens collapsed, sending clouds of dust skyward.

Residents, who just hours before had taken part in large simulated-earthquake drills to mark the anniversary, emptied into the streets when the real quake struck. Read more at NPR.

Earthquakes are a common occurrence, rumbling below Earth's surface thousands of times every day. But major earthquakes are less common. Here are some things to do to prepare for an earthquake and what to do once the ground starts shaking shared by Nationalgeographic.com.

Tags: earthquakemexico