This webpage does not describe a real potential asteroid impact. The information
on this page is fictional and provided only to support an emergency response
exercise conducted during the International Academy of Astronautics (IAA)
2021 Planetary Defense Conference
(virtually) in Vienna, Austria, April 26–April 30, 2021.
This is only an exercise.
The 2021 PDC Hypothetical Asteroid Impact Scenario, Day 1: April 26, 2021