An earthquake centered in Maine just shook the North Shore. It occurred at about 7:15 p.m.

The quake, a 4.5 on the Richter scale, was centered in Lake Arrowhead, Maine, which is in York County about 30 miles west of Portland.

No major problems or injuries have immediately been reported in Swampscott.

The Swampscott police station received about 10 calls, as of 7:20 p.m., from residents reporting the shaking, according to the department.

A firefighter said they felt the rumble at the Swampscott Fire Station but nothing fell and there was no damage to the building.

They also received a call from a resident who reported feeling the shaking on Atlantic Avenue.