PORTLAND, Maine — A small earthquake was recorded off the coast of Cape Elizabeth around noon Thursday.

More than 20 people, mostly in Cape Elizabeth and South Portland, told the United States Geological Survey that they felt the magnitude 2.2 quake.

But it likely registered as “just a bump,” if people noticed it at all, according to Mitchell Gold, a seismologist with the Lamont-Doherty Cooperative Seismographic Network, which recorded the quake.

The quake’s epicenter was located more than three miles below the ocean floor and about seven miles south-east of South Portland, according to the USGS, which monitors seismic activity

Such small quakes typically happen a few times a year and are normal for the area, Gold said.

A dispatcher said that the Cape Elizabeth police received no reports of damage related to the quake but did have people call about an unidentified loud noise Thursday. The South Portland police did not immediately respond to a request for comment.

In June, geologists recorded five minor earthquakes in various locations throughout Maine.

The largest earthquake ever recorded in Maine, measuring a 5.9 magnitude, was centered in the Pembroke-Eastport area on March 21, 1904, according to U.S. Geological Survey data.