Seattle, USA, Mar 28, 2011 - The earthquake and tsunami that hit Japan on March 11 is first and foremost a humanitarian tragedy that is difficult to comprehend. Over 10,000 people died during and in the immediate aftermath; more than 400,000 people lost their homes and 100-150,000 buildings were destroyed. The re-building of towns, roads, railways and the power grid in the impacted region northeast of Tokyo will be a lengthy and difficult undertaking.