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NTHMP Logo National Tsunami Hazard Mitigation Program


The National Tsunami Hazard Mitigation Program (NTHMP) is led by its Chair and leadership in cooperation with its Coordinating Committee composed of representatives from the following government entities:

  • National Oceanic and Atmospheric Administration (NOAA) (Chair)
  • Department of Homeland Security/Federal Emergency Management Agency (DHS/FEMA)
  • U.S. Geological Survey (USGS)
  • U.S. coastal states (AK, CA, HI, OR, WA, East Coast, Gulf Coast)
  • Pacific territories/commonwealths (American Samoa, CNMI, Guam)
  • Puerto Rico
  • U.S. Virgin Islands

Foundational Documents

Program Assessment

The NTHMP has learned and adapted from a series of assessments and reports.

Subcommittees, Caucus, Work Group, Board, and Task Groups

The NTHMP has three subcommittees:

The NTHMP has one Work Group

The NTHMP has one caucus

The NTHMP has one Board

The NTHMP has Task Groups

Voting Structure

The approved voting structure of the NTHMP Coordinating Committee (as agreed at the January 2014 annual meeting) is as follows:

  • American Samoa, AK, CA, CNMI, Guam, HI, OR, WA, Puerto Rico, U.S. Virgin Islands - 1 vote each
  • East Coast States (GA, SC, NC, VA, MD, DE, NJ, NY, CT, RI, MA, NH, ME) - 1 vote
  • Gulf Coast States (AL, FL, LA, MS, TX) - 1 vote
  • FEMA-USGS-NOAA - 2 votes each

NTHMP Program Administration

The NTHMP is supported by the NTHMP Administrator who is based at the National Weather Service headquarters, Tsunami Program. This position serves as an Executive Secretary to the Chair, organizes meetings, develops NTHMP meeting agendas, takes minutes for Coordinating Committee meetings, facilitates NTHMP meetings and work groups, maintains the NTHMP website, and communicates on behalf of the NTHMP Coordinating Committee and Subcommittees with its members.

NOAA/NWS Tsunami Activities Grants

Since passage of the Tsunami Warning, Education, and Research Act in 2017 (P.L. 115-25, Title V) and its predecessor legislation in 2007 (TWEA, P.L. 109-479 Title VIII), Congress has authorized and directed NOAA's National Weather Service to award grants supporting tsunami preparedness, mitigation, mapping, and warning activities.

NTHMP Photos

Photo taken at the 2019 NTHMP Winter Meeting in Salt Lake City is here. See who we are!

Group Photo (800 x 301, 201KB)

Past Meetings

Proceedings from previous General Meetings

Minutes of past NTHMP Coordinating Committee meetings

NTHMP Subcommittee Meetings are held via conference call as shown on each subcommittee's web page.



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