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In partnership with the Alaska Earthquake Center and the Alaska Division of Homeland Security and Emergency Management, we publish maps of potential inundation made using numerical modeling of tsunami wave dynamics.
Landsat images helped convince researchers that a slumping mountainside overlooking Barry Arm fjord could pose a tsunami hazard.
The tallest wave ever recorded was a local tsunami, triggered by an earthquake and rockfall, in Lituya Bay, Alaska on July 9, 1958. The wave crashed against the opposite shoreline and ran upslope to an elevation of 1720 feet, removing trees and vegetation the entire way.
2017 updated tsunami inundation report for the kodiak area, alaska 68.52 mb; maximum estimated tsunami inundation, kodiak area, alaska 13.45 mb; maximum estimated tsunami inundation, northeast kodiak, alaska 18.73 mb; maximum estimated tsunami inundation, downtown kodiak, alaska 21.84 mb
22 Νοε 2020 · The event at Lituya Bay still stands as one of the tallest tsunami waves known to science. The photo above, taken in 1958 after the tsunami, shows the ring of damage around much of the bay. Evidence of the cataclysmic wave is still visible from space more than 60 years later.
28 Φεβ 2018 · The National Oceanic and Atmospheric Administration (NOAA) issued a tsunami warning for Alaska and Canada, and a tsunami watch for Washington, Oregon, and California. Sirens wailed in Alaskan coastal communities, cell phones sounded emergency alerts, and numerous residents fled to higher ground.
16 Αυγ 2023 · A story map about Anchorage tsunami hazard is available here. Interactive tsunami hazard maps for coastal Alaska communities are available here. Full peer-reviewed report, including GIS data and map sheets and a simulation video of hypothetical earthquake–tsunami dynamics is available here.
