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Guam Homeland Security reviews tsunami maps and urges fast local response to local events
Summary
Guam Homeland Security updated mayors on inundation maps, planned updated modeling with the University of Hawai‘i and the need for local natural-warning awareness for local tsunamis that can arrive within 10 minutes; officials also noted siren gaps and a reduction in NOAA mitigation funding.
Steven Cahill of Guam Homeland Security told the Mayor’s Council of Guam that existing village inundation maps are available on the GHS website but are based on an aggressive NOAA/PMEL study; GHS is working with the University of Hawai‘i to produce updated tsunami modeling.
Cahill said the current public products were computed from a high-end scenario and that geologists consider about 8.3 the upper-bound magnitude for events from the Marianas Trench. He summarized modeling outputs saying an 8.3 event could…
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