Earthquakes in Chile and L.A. Raise Fears About 'Ring of Fire'
The 8.2 earthquake that shook northern Chile and surrounding countries late Tuesday night was one of a string of recent earthquakes along what is known as the "Ring of Fire," a circle of quake-prone areas on the Pacific Rim.
A magnitude 5.1 quake hit Los Angeles last week, followed by aftershocks along the California coast. And South America will be on the lookout in coming days for aftershocks that have already started following Tuesday night's temblor.
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