Asteroid & Comet Impact

Set the impactor and target, then watch atmospheric entry, crater formation and the damage footprint. Scaling laws follow Collins, Melosh & Marcus (2005). On the Map tab, click to move the impact point.

Presets

Impactor

Diameter

Density Impact velocity Entry angle (from horizontal)

Target

Surface Sedimentary Crystalline Water

City size (map scale) Map zoom

Results

At the city

Simplified, order-of-magnitude model: isothermal atmosphere, pancake breakup, TNT-equivalent blast, no atmospheric tsunami coupling, flat Earth. Real events vary by factors of 2–10 or more.