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Nearly 3,000 people perished in the September 11, 2001, terrorist attacks in New York, Washington and Pennsylvania, excluding the 19 hijackers. Total insured losses from the terrorist attacks on the World Trade Center in New York City and the Pentagon were about $45.0 billion in 2017 dollars, including property, life, and liability insurance claim costs. Loss estimates may differ from estimates calculated by other organizations. It is the worst terrorist attack on record in terms of fatalities and insured property losses, which totaled about $26.2 billion.

Top 20 Costliest Terrorist Acts By Insured Property Losses

(2017 $ millions)

Rank Date Country Location Event Insured
property
loss (1)
Fatalities
1 September 11, 2001 United States New York, Washington DC,
Pennsylvania
Hijacked airliners crash into
World Trade Center and Pentagon
$26,215 (2) 2,982
2 April 24, 1993 United Kingdom London Bomb explodes near NatWest tower
in the financial district
1,266 1
3 June 15, 1996 United Kingdom Manchester Irish Republican Army (IRA) car bomb
explodes near shopping mall
1,038 0
4 April 10, 1992 United Kingdom London Bomb explodes in financial district 937 3
5 February 26, 1993 United States New York Bomb explodes in garage of World Trade Center 872 6
6 July 24, 2001 Sri Lanka Colombo Rebels destroy 3 airliners, 8 military aircraft and
heavily damage 3 civilian aircraft
555 20
7 February 9, 1996 United Kingdom London IRA bomb explodes in South Key Docklands 361 2
8 June 23, 1985 North Atlantic Irish Sea Bomb explodes on board of an Air India Boeing 747 227 329
9 April 19, 1995 United States OK, Oklahoma City Truck bomb crashes into government building 203 166
10 September 12, 1970 Jordan Zerqa, Dawson's Field
(disused RAF airstrip in desert)
Hijacked Swissair DC-8, TWA Boeing 707,
BOAC VC-10 dynamited on ground
178 0
11 September 6, 1970 Egypt Cairo Hijacked PanAm B-747 dynamited on ground 154 0
12 April 11, 1992 United Kingdom London Bomb explodes in financial district 134 0
13 November 26, 2008 India Mumbai Attack on two hotels; Jewish center 117 172
14 March 27, 1993 Germany Weiterstadt Bomb attack on a newly built, still unoccupied prison 99 0
15 December 30, 2006 Spain Madrid Bomb explodes in car garage at Barajas Airport 82 2
16 December 21, 1988 United Kingdom Lockerbie Bomb explodes on board of a PanAm Boeing 747 80 270
17 July 25, 1983 Sri Lanka NA Riot 65 0
18 July 7, 2005 United Kingdom London Four bombs explode during rush hour in a tube and bus 65 52
19 November 23, 1996 Comoros Indian Ocean Hijacked Ethiopian Airlines Boeing 767-260 ditched at sea 62 127
20 March 17, 1992 Argentina Buenos Aires Bomb attack on Israel's embassy in Buenos Aires 53 24

(1) Includes bodily injury and aviation hull losses. Updated to 2017 dollars by the Insurance Information Institute using the U.S. Bureau of Labor Statistics CPI Inflation Calculator.
(2) Differs from inflation-adjusted estimates made by other organizations due to the use of different deflators.

NA=Data not available.

Source: Swiss Re.

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