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Natural | Animal Disease Outbreak | An unintentional introduction of the foot-and-mouth disease virus into the domestic livestock population in a U.S. state |
Natural | Earthquake | An earthquake occurs within the U.S. resulting in direct economic losses greater than $100 Million |
Natural | Flood | A flood occurs within the U.S. resulting in direct economic losses greater than $100 Million |
Natural | Human Pandemic Outbreak | A severe outbreak of pandemic influenza with a 25% gross clinical attack rate spreads across the U.S. populace |
Natural | Hurricane | A tropical storm or hurricane impacts the U.S. resulting in direct economic losses of greater than $100 Million |
Natural | Space Weather | The sun emits bursts of electromagnetic radiation and energetic particles causing utility outages and damage to infrastructure |
Natural | Tsunami | A tsunami with a wave of approximately 50 feet impacts the Pacific Coast of the U.S. |
Natural | Volcanic Eruption | A volcano in the Pacific Northwest erupts impacting the surrounding areas with lava flows and ash and areas east with smoke and ash |
Natural | Wildfire | A wildfire occurs within the U.S. resulting in direct economic losses greater than $100 Million |
Technological/ Accidental | Biological Food Contamination | Accidental conditions where introduction of a biological agent (e.g., Salmonella, E. coli, botulinum toxin) into the food supply results in 100 hospitalizations or greater and a multi- state response |
Technological/ Accidental | Chemical Substance Spill or Release | Accidental conditions where a release of a large volume of a chemical acutely toxic to human beings (a toxic inhalation hazard, or TIH) from a chemical plant, storage facility, or transportation mode results in either one or more offsite fatalities, or one or more fatalities (either on- or offsite) with offsite evacuations/shelter-in-place |
Technological/ Accidental | Dam Failure | Accidental conditions where dam failure and inundation results in one fatality or greater |
Technological/ Accidental | Radiological Substance Release | Accidental conditions where reactor core damage causes release of radiation |
Adversarial/ Human-Caused | Aircraft as a Weapon | A hostile non-state actor(s) crashes a commercial or general aviation aircraft into a physical target within the U.S. |
Adversarial/ Human-Caused | Armed Assault | A hostile non-state actor(s) uses assault tactics to conduct strikes on vulnerable target(s) within the U.S. resulting in at least one fatality or injury |
Adversarial/ Human-Caused | Biological Terrorism Attack (non-food) | A hostile non-state actor(s) acquires, weaponizes and releases a biological agent against an outdoor, indoor, or water target, directed at a concentration of people within the U.S. |
Adversarial/ Human-Caused | Chemical/ Biological Food Contamination Terrorism Attack | A hostile non-state actor(s) acquires, weaponizes and disperses a biological or chemical agent into food supplies within the U.S. supply chain |
Adversarial/ Human-Caused | Chemical Terrorism Attack (non-food) | A hostile non-state actor(s) acquires, weaponizes and releases a chemical agent against an outdoor, indoor, or water target, directed at a concentration of people using an aerosol, ingestion, or dermal route of exposure |
Adversarial/ Human-Caused | Cyber Attack against Data | A cyber-attack which seriously compromises the integrity or availability of data (the information contained in a computer system) or data processes resulting in economic losses of a Billion dollars or greater |
Adversarial/ Human-Caused | Cyber Attack against Physical Infrastructure | An incident in which a cyber-attack is used as a vector to achieve effects which are beyond the computer (i.e., kinetic or other effects) resulting in one fatality or greater or economic losses of $100 Million or greater |
Adversarial/ Human-Caused | Explosives Terrorism Attack | A hostile non-state actor(s) deploys a man-portable improvised explosive device (IED), Vehicle-borne IED, or Vessel IED in the U.S. against a concentration of people and/or structures such as critical commercial or government facilities, transportation targets, or critical infrastructure sites, etc., resulting in at least one fatality or injury |
Adversarial/ Human-Caused | Nuclear Terrorism Attack | A hostile non-state actor(s) acquires an improvised nuclear weapon through manufacture from fissile material, purchase, or theft and detonates it within a major U.S. population center |
Adversarial/ Human-Caused | Radiological Terrorism Attack | A hostile non-state actor(s) acquires radiological materials and disperses them through explosive or other means (e.g., a radiological dispersal device or RDD) or creates a radiation exposure device (RED) |