Could a major earthquake strike 125th Street?

Okay, so it doesn’t pose the same level of threat as California’s San Andreas fault.

But Manhattan does have a fault line under layers of schist along Harlem’s main drag.

The 125th Street fault “runs from New Jersey to the East River, skirting the northern tip of Central Park and running southeast to Roosevelt Island,” explains a 2002 New York Times article.

Because of the fault, the 1 train rises above ground and goes over a trestle bridge at 125th Street (left). The fault also forms the natural boundary between Manhattanville and Harlem.

And it’s not the only one within city borders. Another fault runs beneath Van Cortlandt Park in the Bronx, and a third under Dyckman Street in Inwood.

So how worried should you be about the potential for a serious tremor?

Well, the last major city quake happened in 1884 and was centered around Coney Island.

“The New York City metro area is susceptible to an earthquake of at least a magnitude of 5.0 once a century,” reported the Daily News in 2011. We might be due for one soon.