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.
But Sunday's remarks following the Orlando nightclub shooting were the first to incorporate all three of those themes. It was at least the 14th time that President Obama spoke to the nation in the immediate aftermath of a mass shooting â and the sixth time within just the past year. Obama himself has acknowledged that his remarks have become all too predictable.