According to the authors of the study, who used geological observations made using the THEMIS instrument on board the Mars Odyssey spacecraft, laboratory impact experiments and computer modeling of impact processes, large crater - forming impacts would have created tornado - like wind vortices that reached speeds of up to 500 miles per hour. (ibtimes.com)
Geological observations at Stardust Bay, Alaska point toward previously unrecognized tsunami sources along a presently creeping part of the Aleutian Subduction Zone. (sciencedaily.com)
To get their results the researchers used sophisticated ice sheet and climate models and verified their results with independent geological observations from the oceans off Antarctica. (constantinealexander.net)