how much energy in joules, is released by an earthquake of magnitude 3.4?

Energy=10^(11.8 + (1.5 x M)), where M=Magnitude moment {USGS Formula}

E=10^16.9

E=79,432,823,472,428,150 ergs [1 Joule=10^7 ergs]

E=7,943,282,347- Joules- the energy of 3.4M earthquake= energy released by ~1,900 kg of expolsive TNT.