Want to worry about something seriously to worry about?— a repeat of the Chicxulub comet/asteroid. A Comet/Asteroid which struck the Earth 66 million years ago, whose crater has been identified along the Yucatan Peninsula. The comet/asteroid was 9 miles in diameter and the impact is confirmed to coincide exactly with the Cretacous-Palogene Extinction event (which featured most notably the immediate extinction of the non-avian dinosaurs all over the world). The evidence of the comet/asteroid impact is identified all over the world as well- for example erosion exposing the Iridium/clay layer out in the Badlands (a long way from Yucatan and the Danish Zealand Island. The crater is called the Chicxulub, The net result was extended multiyear winter everywhere— killing plants and animals. And this was only the second largest impact ever discovered to date. There’s another one that is larger!
Here’s the wiki page for the Crater:
https://en.wikipedia.org/wiki/Chicxulub_crater
And here’s the one for the Cretaceous Palogene event
https://en.wikipedia.org/wiki/Cretaceous%E2%80%93Paleogene_extinction_event
So a 2.1 kT impact is no big deal, and neither was the 440 kT one that hit Russia in Feb. 2013. The Chicxulub meteor hit with a force calculated at 100 trillion tons of TNT-ie. beyond our comprehension.
A map of the biggest impacts as far as is known— and enjoy worrying. LOL https://en.wikipedia.org/wiki/List_of_impact_craters_on_Earth
... and then there are the Carolina Bays ... the end of the Ice Age and the beginning of the Younger Dryas ...
I wasn’t worrying.