This is UNDAC - The United Nations Disaster Assessment and Coordination System - 2018

The UNDAC system is designed to support national governments, the UN in-country, Humanitarian Coordinators and Humanitarian Country Teams, and incoming international responders with coordination during the first phase of a sudden-onset emergency. It also aims to advise and strengthen national and regional disaster response capacity

They are trained in various skills, such as coordination, needs assessments and information management. The teams also advise and strengthen national and regional disaster response capacity.
When required, an UNDAC team establishes and runs an On-Site Operations Coordination Centre (OSOCC) and a Reception and Departure Centre (RDC), which provide a platform for cooperation, coordination and information management for international humanitarian response agencies and national responders. First responders use the Virtual OSOCC website for real-time information exchange during ongoing emergencies.

As well as working with OCHA regional offices and other parts of OCHA, ERSB works with UNDAC national focal points. ERSB also acts as the secretariat of the International Search and Rescue Advisory Group (INSARAG), which is the global network of countries and organizations dedicated to improving standards and coordination in urban search-and-rescue (USAR) preparedness-and-response operations.