A very unusual and frightening thing is taking place throughout the USA right now: The entire land mass of the country is vibrating. It began with an explosive magnitude 7.8 earthquake in Ecuador at around 7:58 PM Eastern US Time and has not stopped since.
The entity which monitors earthquakes throughout the country is the US Geological Survey (USGS). They run the Advanced National Seismic Sensors (ANSS) which is the "backbone" of all the earthquake monitoring throughout the nation. The ANSS has about eighty-eight seismographs nationwide.
As shown below, with the exception of two seismographs that are not presently functioning, seismographs in the entire United States are showing ongoing quivering from the Ecuador Earthquake! ALL OF THEM! It's almost as though the earthquake shook the planet and caused it to wobble!
While we may not actually feel the vibrating, the seismographs confirm it is taking place; but it is doing so at a depth we cannot feel. Perhaps at the same 10 KM depth where the Ecuador earthquake took place. While that vibrating goes on, it is loosening things beneath us.
As these vibrations continue, it is highly likely they will trigger other earthquakes throughout the US. Areas which are prone to earthquakes, are more likely to experience new ones as this vibrating continues. As such, folks in California, Oregon and Washington should be prepared for a possible earthquake tonight or tomorrow.
Take a look for yourself at the 88 images below, taken from the ANSS Backbone at 11:16 PM eastern US time on April 16, 2016. (Click the image to enlarge) The earthquake took place at 7:58 PM EDT and the seismographs have not stopped shaking since that event!