The INFRARISK project aims to develop reliable stress tests to assess the resilience of European critical infrastructure (CI) networks to rare, low-frequency natural hazards. The project has 11 partners from 7 countries and a budget of €3.6 million. The objectives are to identify high-impact, low-probability natural hazard events; develop a stress test framework to evaluate hazards on interconnected CI systems; and facilitate implementation through GIS and web-based algorithms to simulate complex case studies. The methodology establishes an overarching framework to evaluate risks to multiple infrastructure networks from various hazards, incorporating analyses of hazards, infrastructure vulnerabilities, and cascading impacts. Expected results include improved stress test procedures; approaches for better protecting and developing robust infrastructure