This report is a Supplement to the UNDRR-ISC Hazard Definition and Classification Review - Technical report released in July 2020. Aligned with the list of hazards published in the Technical Report, this Supplement comprises of a description of each of the 302 hazard information profiles (HIPs), developed using a consultative process by scientists and experts across the globe. Responding to increasing calls for ‘a data revolution, rigorous accountability mechanisms and renewed global partnerships’, the UNDRR-ISC Hazard Definition and Classification Review - Technical report and its Supplement provide an important resource to support the implementation of disaster risk reduction and risk-informed investment, aligned with the Sendai Framework for Disaster Risk Reduction 2015–2030, but also the Sustainable Development Goals of Agenda 2030, the Paris Agreement on Climate Change and the Addis Ababa Action Agenda on Sustainable Financing. It provides a common set of hazard definitions to Governments and stakeholders to inform their strategies and actions on risk reduction and management. Specifically, the report and this supplement could support the development and updating of national and local disaster risk reduction strategies and loss databases, as well as integrating disaster risk reduction into national statistics, legal, accounting and regulatory frameworks and public and private policy, financing and investment decisions.