Experts are reiterating their concerns regarding the danger of a mega-tsunami impacting three US coastal regions — the Pacific Northwest, Alaska, and Hawaii. Recent geological simulations indicate that the Cascadia Subduction Zone is overdue for a 9.0 magnitude earthquake that could unleash 100-foot waves on Oregon and Washington in a matter of minutes. The melting glaciers in Alaska heighten the likelihood of underwater landslides that could produce 1,000-foot waves in sheltered bays, while Hawaii faces the risk of Pacific Rim tsunamis with less than 20 minutes of advance warning.
