 Do you know the difference between the three types of tsunami alerts and what to do if one is issued? Once a natural event like an undersea earthquake or volcanic eruption occurs that warrants an alert the Cal OAS Warning Center Will issue a tsunami watch which means stand by and be prepared They will issue that watch as they evaluate the event to determine what the impacts are going to be to our coast Once they make that determination They will put us into an advisory or a warning an advisory is going to be an event that will mostly impact our marine and harbor areas and our immediate coastal areas where a more damaging event would be Alerted as a tsunami warning, which would have more of an opportunity to Inundate on land to learn more about tsunami preparedness week and increase your tsunami know-how Go to news dot Cal OES dot ca dot GOV and follow us on all our social media platforms