Cosmic Clock

Incoming: The Chicxulub Impactor By Stephanie Osborn

By way of promoting Incoming: The Chicxulub Impactor By Stephanie Osborn, Sarah A. Hoyt has posted a timeline of how the disaster unfolded.

I recently connected the rotation of our galaxy to the ages of long ago events. If you look at the galaxy as a clock face, each hour of galactic time consumes about 19 million Earth years, so this event, that happened 66 million year ago happened about 5:30 this morning, galactic time, assuming the current galactic time is the same as my local time.

Gravity anomaly map of the Chicxulub impact structure. The coastline is shown as a white line. A striking series of concentric features reveals the location of the crater. White dots represent water-filled sinkholes (solution-collapse features common in the limestone rocks of the region) called cenotes after the Maya word dzonot. A dramatic ring of cenotes is associated with the largest peripheral gravity-gradient feature. The origin of the cenote ring remains uncertain, although the link to the underlying buried crater seems clear. - Wikipedia

Northwest portion of the Yucatan Penninsula, site of Chicxulub impactor
Not much evidence of the event on the satellite map, though you there seem to be some semi-circular swaths of clear areas surrounding Merida, which is pert near the center of the impact.