Hi @Scezui! Welcome to OpenStreetMap.

If you're interested in adding this type of data, you might want to check out this how-to page: https://wiki.openstreetmap.org/wiki/Talk:Key:hazard

Notes are helpful, but has no effect on geographic data.

If you're interested in reaching out with local mappers, try out the listed channels in your platform: osm.org/wiki/PH