BERNARDSVILLE, N.J. — A 2.7-magnitude earthquake shook parts of northern New Jersey Friday morning, according to the U.S. Geological Survey.

The temblor's epicenter was located about 1.8 miles north of Bernardsville. It struck about 3:41 a.m. Friday, the agency said.

Many New Jersey residents on social media said they woke up because of the underground blast.

Swear I just woke up to an #earthquake in North New Jersey #runforthehills — Massi Catizone (@CatizoneMassi) August 14, 2015

Did a just feel an earthquake or something? Anyone? #NewJersey — Gigi Neres (@NeresGigi) August 14, 2015

One user said the quake shook for about 10 to 15 seconds.

@DanMannarino any report on the earthquake 2.5 magnitude from Bernardsville NJ? Morris county is tweeting like crazy. 3:40 AM we felt it. — Danielle (@m30w7h) August 14, 2015

No major damage has been reported.