i mean, well, this is a very vulnerable fault line. the epicenter right here just across the water from anchorage, that is area which you may have heard of called the ring of fire. when i expand this image, i'll be able to show you better. all around the periphery of the pacific ocean there's fault lines, areas vulnerable to earthquakes and therefore tsunamis, of course, because you have all this water that's open and available for the ocean to travel those waves without anything getting in the way. notice the travel times, nine hours. you're just outside of san francisco. for that possible tsunami. 12 hours you're getting further to the south toward mexico. again, here's the epicenter. this was a very strong earthquake. not only that but it was also very shadow and that's why the shaking was so prevalent. steph, you asked about the immediate concerns right now. it's not just for structures. vulnerable structures that aren't earthquake safe, also for