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Mar 20, 2020 • 29 tweets • 11 min read
I’m going a little stir crazy, I’ve got class ready for Monday but don’t want to plan ahead until I see how asynchronous teaching goes in a trial run, so let’s start a thread on this week's earthquake and see where it goes.
Why are there #earthquakes in Salt Lake City?
2 days ago, there was a magnitude 5.7 earthquake near Salt Lake City, on a fault related to the Wasatch fault system. So, what is the Wasatch fault, and why are there earthquakes in this area?
On Friday, NASA announced 3 companies have been contracted to land payloads at 3 sites on the Moon over the next few years: Mare Imbrium, Lacus Mortis, and Oceanus Procellarum. But, as far as I can tell, no one wrote anything about the geology of those sites, so let's do it.
It looks like all 3 of these sites were picked based on mission requirements; safe landing and so forth. However, all 3 of these sites fit into the story of the Moon that was originally figured out based on rocks returned from Apollo spacecraft.
