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Earthquake Rattle NH Seacoast
t says a 1.4 intensity earthquake hit at 10:30 and was centered about a mile and a half north of Exeter.
At the same time, and also a couple of hours earlier, police in Portsmouth received numerous calls from residents reporting they had heard explosions and felt concussions that nearly knocked pictures off their walls.
Then, around 12:45 this morning, Portsmouth police reported finding unusual levels of methane gas escaping from the ground. Crews are digging holes to vent the underground gases.
Police say they don't know for sure if the explosive sounds were from an earthquake or underground gas explosions or both. They also are looking into whether the possible explosions actually triggered the earthquake monitoring devices.