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NEOWAVE Regional Tsunami Model: Guam: Apra Harbor

Published by Pacific Islands Ocean Observing System (PacIOOS) | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: January 27, 2026 | Last Modified: 2020-02-19T00:00:00.000+00:00
Non-hydrostatic Evolution of Ocean WAVEs (NEOWAVE) regional tsunami model for Apra Harbor on the island of Guam, categorized by earthquake magnitude and subduction zone. Offshore data are gridded at approximately 90-m resolution while in-harbor data are approximately 9-m resolution. Includes offshore surge and current based on maximum considered tsunamis as well as in-harbor hazard maps of surge, drawdown, and current for hypothetical advisory and warning-level tsunamis from potential sources at the Mariana, Nankai, Philippine, and New Guinea subduction zones. Data are referenced to the WGS84 coordinate system, and the vertical datum is mean sea level (MSL). This shock-capturing, dispersive wave model computes tsunami generation, propagation, and inundation for complex flow patterns in shelf and reef environments. It has been validated with analytical, laboratory, and field benchmarks and is approved by the National Tsunami Hazard Mitigation Program. These hazard maps cover tsunamis only; other potential hazards such as wind waves and swells would be additive to the surge, drawdown, and current described by these data.

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Earth Science Services > Models > Ocean General Circulation Models (OGCM)/Regional Ocean Models Earth Science Services > Models > Weather Research/Forecast Models Earth Science > Human Dimensions > Natural Hazards > Tsunamis Earth Science > Oceans > Coastal Processes > Sea Surface Height Earth Science > Oceans > Coastal Processes > Storm Surge Earth Science > Oceans > Ocean Circulation > Ocean Currents Earth Science > Oceans > Ocean Waves > Storm Surge Earth Science > Oceans > Ocean Waves > Tsunamis Earth Science > Oceans > Sea Surface Topography > Sea Surface Height Models/Analyses > > Models Not Applicable > Not Applicable Ocean > Pacific Ocean > Western Pacific Ocean > Micronesia > Guam > Apra Harbor PacIOOS > Pacific Islands Ocean Observing System PacIOOS > Pacific Islands Ocean Observing System sea_water_speed sea_water_speed sea_water_speed sea_water_speed sea_water_speed sea_water_speed sea_water_speed sea_water_speed sea_water_speed sea_water_speed sea_water_speed sea_water_speed sea_surface_height sea_surface_height sea_surface_height sea_surface_height sea_surface_height sea_surface_height sea_surface_height sea_surface_height sea_surface_height sea_surface_height sea_surface_height sea_surface_height sea_surface_height sea_surface_height sea_surface_height sea_surface_height sea_surface_height sea_surface_height sea_surface_height sea_surface_height sea_surface_height sea_surface_height sea_surface_height sea_surface_height latitude longitude

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