Since Jan. 1, 2016, there have been 179 mass shootings in the U.S. alone, leaving 256 people dead and another 712 injured.

According to the Gun Violence Archive, where these numbers come from, a mass shooting is defined as "four or more shot and/or killed in a single event [incident], at the same general time and location, not including the shooter."

With July 8 being the 190th day of the year, there has so far been approximately 0.94 mass shootings per day in the U.S.

The markers on the map below each show the location of one such shooting. Zoom and click each marker for details (or click here for a map of every mass shooting in 2015).