# Wolfram Function Repository

Instant-use add-on functions for the Wolfram Language

Function Repository Resource:

Calculate the physical effects of an asteroid impact on Earth based on asteroid composition and velocity

Contributed by:
Jason Martinez

ResourceFunction["EarthAsteroidImpact"][ computes impact parameters for an asteroid colliding with Earth. |

All parameters must be Quantity objects.

ResourceFunction["EarthAsteroidImpact"] returns an Association of the asteroid impact parameters. These include:

"BreakupAltitude" | altitude at which the impactor begins to break up |

"AirburstAltitude" | altitude at which the impactor explodes in an airburst |

"FinalSimpleCraterDiameter" | diameter of the final simple impact crater |

"PeakOverpressure" | peak overpressure |

"BrecciaLenseThickness" | thickness of the breccia lense at the bottom of a simple crater |

"BrecciaLenseVolume" | volume of the breccia lense at the bottom of a simple crater |

"ComplexCraterDepth" | depth of the resulting complex crater |

"ComplexCraterDiameter" | diameter of the resulting complex crater |

"CraterRimHeight" | height of the final crater rim |

"DebrisFieldDiameter" | diameter of the debris field from broken-up impactor |

"EarthRecurrenceInterval" | average time interval between impacts of equivalent energy on the Earth |

"EffectiveSeismicMagnitude" | seismic magnitude |

"EjectaArrivalTime" | ejecta arrival time |

"EjectaThickness" | ejecta thickness |

"FinalSimpleCraterDepth" | depth of the final simple impact crater |

"FireballRadius" | visible fireball radius |

"ImpactEnergy" | impact energy |

"ImpactVelocity" | impact velocity |

"InitialKineticEnergy" | initial kinetic energy |

"IrradiationDuration" | irradiation duration |

"MaximumThermalRadiationTime" | maximum thermal radiation time |

"MeanEjectaParticleDiameter" | mean ejecta particle diameter |

"MeltSheetThickness" | thickness of the melt layer at the bottom of the resulting complex crater |

"MeltVolume" | volume of the melt layer at the bottom of the resulting complex crater |

"PeakWindVelocity" | peak wind velocity |

"SeismicArrivalTime" | seismic arrival time |

"ShockWaveTravelTime" | shock wave travel time |

"ThermalExposure" | thermal exposure |

"TransientCraterDepth" | depth of the initial impact crater |

"TransientCraterDiameter" | diameter of the initial impact crater |

Compute the effects of an asteroid impact on Earth:

In[1]:= |

Out[1]= |

Compute the impact effects of an icy body impacting Earth:

In[2]:= |

Out[2]= |

Compute the effects of an airburst resulting from an asteroid hitting the Earth’s atmosphere:

In[3]:= |

Out[3]= |

Compute the effects of a 1.75 km diameter, dense asteroid hitting crystalline rock:

In[4]:= |

Out[4]= |

- 1.0.1 – 30 September 2022
- 1.0.0 – 10 July 2019

This work is licensed under a Creative Commons Attribution 4.0 International License