New Geological Evidence Aids Tsunami Hazard Assessments from Alaska to Hawaii
![An outcrop composed of six tsunami deposits on the inland side of the lowland backing Stardust Bay over 0.5 miles from the sea. Brown soils developed into the top of each sand sheet and black tephra (air fall volcanic ash) layers between two of the sand deposits aided correlation of the six sand sheets across the study area. Location: Stardust Bay, Sedanka Island, Alaska. Image-Richard Koehler/USGS New Geological Evidence Aids Tsunami Hazard Assessments from Alaska to Hawaii](https://alaska-native-news.com/wp-content/uploads/2016/01/image14-01-2016-13.45.06.jpg)
New evidence for frequent large tsunamis at a remote island near Dutch Harbor, Alaska provides geological data to aid tsunami hazard preparedness efforts around the Pacific Rim. Recent fieldwork in Alaska’s Aleutian Islands suggests that a presently “creeping” section of the Aleutian Subduction Zone fault could potentially generate an earthquake great enough to send a […]