This type of quake has been felt all over the world after the detonation of a nuclear weapon. There is very little actual data that is readily available on this type of quake, but, of the two types of of earthquakes it is the only type that can be easily predicted and controlled. We have written many articles about earthquakes for Universe Today.
It was also the first publicly recognized by Obama since the elementary school massacre, which claimed the lives of 27, including 20 children. There have been six mass shootings over the past nine months -- and at least 20 during Obama's presidency. That may be disturbing. But some would argue even that startling figure grossly underreports the number of shooting sprees.
Yet his 7 and one half years of occupying the desk at 1600 Pennsylvania Avenue hide a sinister statistic â America has had 23 mass shootings since he became president, and todayâs mass killing in Orlando now brings that total to 24.