Google Crisis Response has an interesting collection of uses of Google's products to help prepare for and respond to a disaster. For the 2011 Turkey Earthquake, Google have a Turkish language (and English) implementation of their Person Finder. There is also a using the Create an Emergency Plan template using a Google Docs template, based on the US Government's Ready.gov web site.
ps: in 2008 I visited the Kandilli Observatory and Earthquake Research Institute, Bogazici University, which provides earthquake monitoring for the Turkish Government. A few days later I experienced a small earthquake myself.