Timeline of Homeland Security Events and Milestones

Entries on the HSDL Timeline of Homeland Security Events and Milestones are related to homeland security and emergency management. Each entry contains a brief description of the event, its significance, and a selection of related resources.

Criteria

Events included in the Timeline have been chosen for their significance in terms of:

  • located in United States or targeting U.S. citizens/property abroad
  • loss of life or injury
  • damage to environment or property
  • monetary loss or economic impact
  • legislative impact or government response
  • historical interest

Filters

The Timeline can be viewed as a whole, or can be filtered to view events in one of four main groupings:

Attacks – significant terrorist attacks, bombings, shootings, and other intentional acts
Natural Disasters – earthquakes, hurricanes, extreme weather, and other naturally occurring disasters
Man-made Disasters – non-intentional, human-influenced disasters and accidents
Milestones – legislation, government actions, and selected documents of particular significance

New events will be considered and added as appropriate.

1906
San Francisco Earthquake
San Francisco Earthquake

An earthquake with a magnitude of 7.9 struck San Francisco, CA. Violent shocks lasted approximately 40-60 seconds and was felt from southern Oregon to the south of Los Angeles and inland as far as Central Nevada. Fires that resulted from broken gas mains raged for three days, and the pipeline…
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1900
Great Galveston Hurricane
Great Galveston Hurricane

September 8, 1900: A category 4 hurricane ripped through the port city of Galveston, Texas with winds over 135 miles per hour. Storm surges rose 15 feet and completely devastated the prosperous and, at the time, one of the biggest cities in Texas, with over 40,000 inhabitants. Galveston would go…
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1871
Peshtigo Fire
Peshtigo Fire

A forest fire that was allegedly started by railroad workers who were clearing land for tracks, swept through northeast Wisconsin. Within an hour of the fire striking, the city of Peshtigo, WI was gone. A number of factors were attributed to the raging fire, including a prolonged drought and a…
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1868
Hayward Fault Earthquake
Hayward Fault Earthquake

An earthquake with a magnitude of 6.8 struck the region of San Francisco Bay. It lasted for more than 40 seconds and is considered one of the most destructive earthquakes in California’s history, regardless of the sparse population of the time. Shaking could be felt as far as Nevada, and…
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1857
Great Fort Tejon Earthquake
Great Fort Tejon Earthquake

A magnitude 7.9 earthquake struck on the San Andreas Fault from near Parkfield to approximately 300 km away near Wrightwood. The quake could be felt from Marysville to San Diego, and east to Las Vegas, with strong shaking lasting from one to three minutes.—(USGS) Date of event: January 9, 1857 Impact:…
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1811
New Madrid, Missouri Earthquakes
New Madrid, Missouri Earthquakes

The 1811-1812 New Madrid Sequence consisted of three large earthquakes: A Magnitude 7.5 earthquake that struck on December 15, 1811; a magnitude 7.3 that struck on January 23, 1812; and a magnitude 7.5 that struck on February 7, 1812. Following the earthquakes, hundreds of aftershocks were felt in 1813. There…
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