Small earthquake reported off Massachusetts coast; no damage reported

The United States Geological Survey is reporting a small earthquake was reported late Tuesday off Cape Ann, some 30 miles northeast of Rockport.

The quake, which has a taped magnitude of 2.2 on the earthquake magnitude scale, was reported at 10:29 p.m. No damage was reported and no one appeared to even observe.

A 2.2 reading is on the low end of the scale. According to the USGS, any earthquake with a magnitude of 2.5 or less is typically only noticed by seismograph equipment and not people.

There are roughly 900,000 such earthquakes reported each year worldwide.

The Oct. 16, 2012 earthquake in main Maine that was felt throughout Massachusetts but triggered no damage had a magnitude of 4.6.

The 2011 quake near Richmond, Virginia, that triggered damage in Washington, D.C., and was felt in Western Massachusetts, had a magnitude of 5.9.

The earthquake off the coast of Japanin March 2011 that triggered a fatal tsunami had a recorded magnitude of 9.0.

Reporting of Tuesday's earthquake did trigger the Massachusetts Emergency Management Agency to release an advisory Wednesday morning.

"While the majority of earthquakes in Massachusetts are little, Massachusetts is located in a 'moderate' earthquake zone and larger earthquakes are possible," the advisory said.

The advisory also consisted of a connect to the MEMA site with information on what to do in case of an earthquake.