May 16, 2022

New Report and Dataset: Patterns of Islamic State-Related Terrorism, 2002-2015

The following “backgrounder” and dataset were recently released by the National Consortium for the Study of Terrorism and Responses to Terrorism (START) publishers of the Global Terrorism Database.

START is based at the University of Maryland.


Patterns of Islamic State-Related Terrorism, 2002-2015


A new background report from START presents data that illustrate the dynamics of Islamic State-related terrorism over time and place, from 2002 to 2015. In particular, we investigate trends in the number of attacks and deaths caused by Islamic State-related terrorism over time, the geographic spread of Islamic State-related terrorism, and patterns of tactics, targets, and lethality of Islamic State-related terrorism.

Between 2002 and 2015, more than 4,900 terrorist attacks were carried out by groups or organizations affiliated with the organization now known as the Islamic State. These attacks caused more than 33,000 deaths and 41,000 injuries (including perpetrator casualties), and involved more than 11,000 individuals held hostage or kidnapped. Excluding incidents where the perpetrator group was not identified, these attacks represented 13 percent of all terrorist attacks worldwide, 26 percent of all deaths, 28 percent of all injuries, and 24 percent of all kidnap victims or hostages due to terrorism during the same time period.

Direct to Full Text Report: “Patterns of Islamic State-Related Terrorism, 2002-2015” (10 pages; PDF)

Direct to Dataset Used to Prepare Report

See Also: Additional Datasets From START

About Gary Price

Gary Price ( is a librarian, writer, consultant, and frequent conference speaker based in the Washington D.C. metro area. Before launching INFOdocket, Price and Shirl Kennedy were the founders and senior editors at ResourceShelf and DocuTicker for 10 years. From 2006-2009 he was Director of Online Information Services at, and is currently a contributing editor at Search Engine Land.