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NEOWAVE Regional Tsunami Model: Kalapana 1975: Hawaii: Kauai

Published by Pacific Islands Ocean Observing System (PacIOOS) | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: January 27, 2026 | Last Modified: 2022-05-06T00:00:00.000+00:00
Non-hydrostatic Evolution of Ocean WAVEs (NEOWAVE) regional tsunami model for Kauai County in the State of Hawaii, which includes the islands of Kauai and Niihau. Provides a nearshore hazard map of wave amplitude based on the 1975 Kalapana tsunami. Data are gridded at approximately 180-m resolution referenced to the WGS84 coordinate system and use a vertical datum of 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 inundation described by these data.

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