More aftershocks likely in wake of historic Northeast quake, USGS
A day after a historic earthquake rattled much of the Northeast on Friday, the U.S. Geological Survey says the ground may not be done shaking.
The initial quake struck near Whitehouse Station, New Jersey, at 10:23 a.m. ET and measured at a 4.8 magnitude, ranking as the strongest quake to be centered in New Jersey since 1783.
The USGS estimates nearly 43 million people felt the quake as the shockwaves spread across New York City and the Northeast. People reported feeling the shaking from Maryland to Maine.
There were no reports of any significant damage or injuries.
Since the initial quake, more than a dozen aftershocks have been reported from or near the epicenter, with the greatest being a magnitude 3.8 around 6 p.m. — also felt across much of northern New Jersey and the New York City area.
But the USGS says there may be more aftershocks in the coming days.
As of midday Saturday, the agency is giving a 60% probability of at least one more aftershock registering 3.0 magnitude or greater within the next week, with a 9% chance of a magnitude 4.0 or greater aftershock – odds that have dropped a little since Saturday morning when they were at 74% and 14% respectively. The probability rises to 84% of a 3.0 magnitude or greater aftershock by stretching the timescale to over the next month.
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