UPDATE:Officials with the Tsunami Warning Center say no tsunami is expected as a result of a 7.5 magnitude earthquake near Mexico City.
ORIGINAL STORY:MEXICO CITY (AP) - A seemingly strong earthquake is shaking Mexico's capital.
There is no immediate word of damage or casualties and seismologists have not yet issued a calculation of its power or epicenter.
Mexico City is vulnerable even to distant earthquakes because much of it sits atop the muddy sediments of drained lake beds that quiver as quake waves hit.
The magnitude-8.1 quake in 1985 that killed at least 6,000 people and destroyed many buildings in Mexico City was centered 250 miles (400 kilometers) away on the Pacific Coast.
(Copyright 2014 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.)
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