Energy released by an earthquake is measured on a moment magnitude scale. Each step on the scale is ten times greater than the step before it. Each gray sphere below is ten times greater in volume than the sphere to its left.
Patterson Clark | The Washington Post - Feb. 27, 2010. Updated 4:20 p.m.
Weeks after quake, blackout leaves Chileans in the dark Photos | Weeks after the Feb. 27 earthquake hit Chile, a blackout affected millions of residents Sunday. The country is trying to recover from the 8.8-magnitude earthquake that rocked the country last month and caused a tsunami that damaged the country's coastal region and put other countries throughout the Pacific on alert. Strong aftershocks hit the country March 5 and again March 11.