its actually more interesting than you know. from last month > quake waves went in a different direction > kim says a typical earthquake would send much of its energy straight up to the surface, which usually makes the epicenter the most dangerous place to be. > but in this case, the energy was sent downward until it reached the boundary between the earths crust and mantle about 20 miles underground. there the energy wave bounced back up, emerging under the new york city area for the big jolt there. "some (quakes) that are not even that big could maybe focus energy toward population centers," kim said. "if [the april] earthquake was just a little stronger, or a little closer to new york city, the effect would be much greater. we need to understand this phenomenon and its implications for ground motion prediction." get it? map the fault lines with drones and you can create a rumbly tumbly in nj that causes a devastating rumbly tumbly in ny   hquake-april-nyc-area-fault-line.am p
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