on the west coast of the u.s., california, washington, oregon, alaska. i get it. one foot may not seem that high but it is enough. if you are standing on the shoreline, to wash you off your feet and knock you down. don t go surfing, don t stand at the shoreline and take selfies, it is too dangerous. one to three feet on the low end can push a lot of water along the shoreline. this is the video we have been showing from noaa. the satellite imagery. you see the eruption itself. around the edges, you can see the shock waves that were created from the eruption itself. here is a slower image. there s the eruption. notice on the outer side, a lot of shock waves reverberating out from the lightning setup on that particular satellite. again, it gives you a slower motion to show you what it has been doing. impacts from this particular one, it happened 15th of