Tsunami waves of 6.5 feet have already been recorded at coastal Pisagua, Chile.
Here are some interesting graphics to help visualize the impacts
Brad Panovich, Chief Meteorologist in Charlotte, NC, wrote: The whole earth is shaking from this M 8.2 quake check out the local SC seismograph.
This graphic is from Mark Baden, writing on twitter, "Chile earthquake now upgraded to magnitude 8.2. Check out how rare this is. Thanks Wunderground for the graphic":
San Francisco 1906 was 7.2.
New Madrid Missouri quake swarm was estimated at around 7.4 to 8.1. This series of earthquakes were felt strongly over roughly 50,000 sq mi, and moderately across nearly 1 million square miles. The historic 1906 San Francisco earthquake, by comparison, was felt moderately over roughly 6,200 sq mi.
Here is a tsunami propagation map.
I always think of this verse when a large quake happens, especially as mentioned above, the NC weatherman mentioned the earth shaking as far away as South Carolina, and showed the seismograph to prove it.
The earth is utterly broken, the earth is split apart, the earth is violently shaken. The earth staggers like a drunken man; it sways like a hut; its transgression lies heavy upon it, and it falls, and will not rise again.
~Isaiah 24:19-20
The LORD is patient with us, though our transgressions do lay heavy upon the earth. He is merciful. But He will not be patient forever. Please heed His warning, whether it's a mega-quake or the stirring in your heart, and repent.