Welcome to HERA

The Hazard Exposure and Reporting Analytics (HERA) website helps communities understand how natural hazards could impact their land, people, infrastructure, and livelihoods.

HERA provides tools and data to help communities as they plan and prepare for natural hazards.

Learn more about our tools that address various hazards >

Learn About
Our Tools

Use Our Tools

Coastal Flooding

Use this map viewer to see how storms and sea level rise may create or increase coastal flooding


Use this map viewer to see how sea level rise may cause groundwater levels to rise and create hazards

See Our Updates

  • Platform Update
    Jun 2020

    HERA website redesign

  • Data Release
    April 2020

    New flood modeling for Santa Cruz County

  • Data Release
    December 2019

    Updated flood modeling for SF, San Mateo County outer coast