Tsunami threat issued for Mexico, Guatemala after magnitude 7.3 earthquake along the Pacific Ring of Fire

A tsunami threat was issued for Mexico and Guatemala within 186 miles of the earthquake's epicenter.

A major earthquake struck off the coast of Mexico, near the Guatemala border on Friday morning, causing a tsunami threat to be issued for the coasts of both countries. 

The earthquake happened at 7:48 a.m. Pacific time, and was originally reported as a magnitude 7.4 before being recalculated as a magnitude 7.3. 

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It was reported at a depth of 6.2 miles, and happened about 30 miles southwest of Aquiles Serdán, Mexico, according to the U.S. Geological Survey. 

A tsunami threat was issued for Mexico and Guatemala within 186 miles of the earthquake's epicenter. 

Shaking was reported in Guatemala and Mexico, but the USGS said strong shaking could be expected across western Mexico and Guatemala, especially near the coasts. 

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This is the latest in a string of large earthquakes in the Pacific Ring of Fire. 

The Ring of Fire is a 25,000-mile belt of volcanoes and earthquake zones surrounding much of the Pacific Ocean.