Tsunami and earthquake experts will be on the Washington coast for the week of April 9 through April 12 for presentations and discussions on tsunami vertical evacuation structures, potential earthquake early warning systems and survival strategies. Officials from the Washington Emergency Management Division will be joined by the Washington Geological Survey, the National Weather Service, Washington Sea Grant and local emergency management officials in the 90-minute presentation, which will include time for questions. Public presentations will be: 10 a.m., Tuesday,…