Business analytics can help with disaster management in three key ways: 1) By analyzing social media and big data, analytics can help estimate the impact of disasters and determine the best mitigation, recovery, and response strategies. 2) GIS mapping plays a crucial role in disaster preparation, recovery, rehabilitation, prevention, mitigation, relief, and response by identifying deforestation and other causes of natural disasters. 3) Technologies like cloud computing, smart drones, satellite imaging, and AI can assist with tasks like firefighting, decision making, and data management during disaster recovery.