Volcanic hazard maps are visual, spatial depictions of the areas that could be potentially impacted by volcanic phenomena. They can represent a common reference point for discussion and mitigation of volcanic risk when developed, communicated, and used appropriately, as they put all parties quite literally “on the same page” of hazard information. Although most volcanic hazard maps show similar types of content,such as hazard footprints, they vary greatly in input data, communication style,appearance, visual design and their purpose. Hazard maps used to communicate during volcanic activity sometimes vary from those used to produce during quiescence. These maps, known as crisis or short term maps, are crucial visual communication tools used within a wide variety of hazards (e.g. wildfires, earthquakes, flooding) and have been developed for recent volcanic events (e.g. Kilauea, Fuego). The hazard areas used on these maps have been informed by real time field data or based on historical scenarios. They need to be compiled, designed and updated rapidly in order to meet the demands and expectations of many different users. Additional information, such as evacuation centres, are also often used alongside hazard data, meaning there are unique design challenges. This session welcomes discussion around the development, use and effectiveness of all volcanic hazard maps. However, we encourage submissions that address techniques and frameworks used to develop rapid maps during a volcanic crisis and those willing to share their experiences regarding how hazard maps are interpreted and used by diverse audiences during volcanic activity.