Map: Magnitude 6.4 earthquake off the coast of Mexico and Guatemala

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Note: The map shows the area with a shaking intensity of 4 or greater, which USGS defines as “mild,” although the earthquake can be felt outside the areas shown. The New York Times

A powerful 6.4 magnitude earthquake struck in the Pacific Ocean near the Mexico-Guatemala border on Sunday, according to the United States Geological Survey.

The earthquake struck at 7:39 a.m. east, about 11 miles (18 kilometers) southwest of Brisas Barra de Suchiate, Mexico and about 120 miles (190 kilometers) west of Guatemala City, agency data show.

As seismologists review the available data, they may revise the reported magnitude of the earthquake. Additional information gathered about the earthquake may also lead USGS scientists to update the earthquake severity map.

Aftershocks in the region

An aftershock is usually a smaller earthquake that follows a larger one in the same general area. Aftershocks are typically small adjustments along the portion of a fault line that disappeared at the time of the first earthquake.

Earthquakes and aftershocks within a radius of 100 miles

Aftershocks can occur days, weeks, or even years after the initial earthquake. These events can be of equal or greater magnitude to the first earthquake, and they can continue to affect already damaged locations.

Source: United States Geological Survey | Notes: Shaking categories are based on the Modified Mercalli intensity dish. When aftershock data is available, the associated maps and diagrams include earthquakes within 100 miles and seven days after the first earthquake. All tenses above are Eastern. The shaking data is from Sunday, May 12 at 7:56 a.m. Eastern. Aftershock data is as of Sunday, May 12 at 1:40 PM Eastern.

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