Mass shootings in the U.S.: When, where they have occurred in 2018

The number of mass shootings around the country in 2018 has risen above 300 so far.

According to data from the Gun Violence Archive, a total of 314 mass shooting incidents have occurred as of November 19.

A shooting injuring four people, including a suspect, at a Chicago hospital and a Monday evening shooting in Denver, injuring at least 4 and killing 1, marked the 315th and 316th mass shootings so far this year, respectively.

In 2017, the U.S. saw a total of 346 mass shootings. See statistics for other years here.

A November shooting at a bar in Globe, Arizona, which left three dead and one other injured, marked the 309th mass shooting.

There doesn't seem to be an official definition for a "mass shooting" in the United States, but according to the Gun Violence Archive, a mass shooting is described as four or more individuals being shot or killed in the same general time and location. 

RELATED: School shootings in U.S.: When, where each shooting has occurred in 2018

The F.B.I. defines a "mass killing" as the killing of three or more people in a public place, but the federal agency also defines a "mass murderer" as someone who has killed four or more people in the same location.

The Gun Violence Archive lists itself as a not-for-profit organization that documents gun violence and gun crime nationally.

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