Another Amazon cloud-services outage occurred on Sunday, August 7th, 2011 in a Dublin, Ireland data center due to a lightning strike that hit a transformer near the Dublin data center.
It led to an explosion and fire that knocked out all utility services thereby leading to a total data center outage. Amazon had its only European data center located there.
It is likely that Amazon and other major cloud providers will not support extensive disaster recovery plans until the SLAs penalize them into delivering that service well. Well defined SLAs lead to global trade growth because they ensure business is running well globally.
See Lessons learned from a recent Amazon outage by Gregory Machler for Computerworld.