rewrite this Crisis Informatics Usage: Crisis informatics played a significant role in various aspects of the Japan earthquake and tsunami crisis, but there were also areas for improvement: Preparation: Japan has a robust earthquake early warning system that utilizes various technologies, including seismic sensors and communication networks, to detect earthquakes and issue alerts to the public and emergency responders. This system helped mitigate the impact by providing advance warning, allowing people to take cover and enabling emergency services to prepare. Mitigation: Information and communication technologies were used to disseminate evacuation orders, provide updates on the situation, and coordinate rescue and relief efforts. Social media platforms and mobile apps were utilized for communication and information sharing. Response/Recovery: Crisis informatics facilitated the tracking of missing persons, distribution of relief supplies, and coordination of recovery efforts. However, challenges such as network disruptions and limited access to technology in some affected areas hindered communication and coordination efforts