We are a concerned IT Team who just finished setting up a web based Disaster Management System, Sahana. This has been used in a lot of disaster and calamities for sometime in some parts of the world.
The link is at http://sahana.kahelos.org – just freely register.
You may use this to track missing persons, those who wish to seek help, medical aids, shelter and provide relevant numbers to those who may need it.
Thank you and we hope this helps.