Tsunami Travel Time Modelling, This map is generated by Latest Auto Earthquake Information.
TTT software developed by Dr. Paul Wessel (Geoware, http://www.geowareonline.com), and is used by the NOAA Pacific Tsunami Warning Center to predict of tsunami travel times on a geographic (lat–lon) grid derived from a supplied bathymetric data grid. This map generated by Generic Mapping Tools (GMT) developed by Dr. Paul Wessel and Walter Smith (https://www.generic-mapping-tools.org/).