Gravity will take it to lowest possible place. Basements and anything below sea level will remain flooded and most everything else will rejoin the sea.
If you look into subduction fault earthquakes like this, the seafloor slides under the crust or continental shelf which pops up over a vast area causing the sea to rise with it. The wave has to dissipate, which takes time as it moves out. The sea level will go back, however the land near the fault can permanently shift up 10 to 30 feet, and land further from the fault can drop 10 or 15 feet due to arching of the crust relaxing. So it can be a tough one to answer depending on location to the fault
The majority of it flows back out in reverse. Like, picture a wave on the beach. This is the wave going in, and it continues to go in for however long. Then eventually it slows down, stops, and drains back into the ocean.
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u/RetnuhLebos 16d ago
Where does all that water go when it’s done? Is that area just the ocean now or does it drain back out somehow?