Report Coral Bleaching

- Some corals look pale but are not bleach-white.
- Small portions of corals are bleach-white.
- Large areas of coral are bleach-white.

How to report coral bleaching


step 1.

Select “Report Bleaching” on the map above.


step 3.

Select the bleaching level

step 2.

Drag the pointer The map pointer to the m​ap location where you observed coral bleaching

step 4

Select “Submit Report”

Why Report Coral Bleaching?

By reporting coral bleaching, you’re helping research scientists, environmental organizations, policymakers, and community members in Hawaiʻi focus monitoring attention on reefs undergoing increased temperature stress.

Your contributions are important to our understanding of, and response to, bleaching across the main Hawaiian islands.

Coral Bleaching Levels

Coral bleaching is a complex process, so to make reporting more straightforward, we simplified it down to three categories: 

Light Bleaching

Light bleaching represents areas where some corals look pale but are not bleach-white.

Medium bleaching

Medium bleaching categorizes areas where small portions of corals are bleach-white.

Severe Bleaching

Severe bleaching is used to describe large areas with bleach-white corals.

Learn More

Curious to learn more about coral reefs? Visit our coral classroom to learn more about these important ecosystems.

Discover Corals