Tomorrow marks the 140th anniversary of the 1868 Hayward earthquake, dubbed the first great San Francisco earthquake and one of the most damaging quakes in U.S. history. If the 1868 earthquake were to reoccur today, catastrophe modeler Risk Management Solutions (RMS) estimates that total economic losses to residential and commercial properties would likely exceed $165 billion. Fire, damage to infrastructure and related disruption would substantially increase the loss. Meanwhile, Willis has just released a report on seismic hazard in the United States. The report highlights the results of two recent academic research papers: the 2008 National Seismic Hazard Maps and the 2007 Uniform California Earthquake Rupture Forecast. It focuses on the impact these new studies could have on catastrophe risk managers and how catastrophe models may change in the U.S. as a result of these findings. Check out I.I.I. information on earthquakes.