Explosions Before the NJ Earthquake?

From ABC News: CLEMENTON, NEW JERSEY - November 23, 2012 (WPVI) -- A small earthquake struck early Friday morning near Clementon, Camden County.

The U.S. Geological Survey says an earthquake struck just west of Clementon, Camden County.

It struck at 12:13 a.m., and measured a magnitude of 2.1.

Action News received dozens of calls from residents who live in the Camden and Berlin, New Jersey, area.

Some said they thought they heard explosion-like sounds and felt the ground shaking.

So far, there are no reports of injuries or damage.

Source: [link to abclocal.go.com]