"It is only in a place like the Atacama Desert that these cracks can be observed — in all other places, surface processes erase them within days or weeks of their formation, but in the Atacama, they are preserved for millions of years,"
Where I live near the the mouth of the Columbia River, the effects of subduction earthquakes can still be seen.
Along the road to Mt.Saint Helens, alongside roadcuts within the blast zone is evidence of past earthquakes millions of years old.
The Cascade Mountains and coast mountains here were formed from upthrusts caused by subduction quakes.
The volcanoes form upon the Cascades due to a huge, interconnected underground well of molten lava far beneath the surface resulting from when a plate is forced under the continental crust. When looking at the interior of the U.S., it is possible to see dead eroded volcanoes as evidence of continental formation.