Prepared by the Earthquake Investigation Committee of the Technical Council on Lifeline Earthquake Engineering of ASCE.

This TCLEE Monograph describes the performance of lifelines in two earthquakes: the Gujarat earthquake of January 26, 2001, and the Napa earthquake of September 3, 2000. The Gujarat earthquake severely struck the Kutch District of the Gujarat State, India, and resulted in about 17,000 fatalities, 150,000 injuries, and left more than 500,000 homeless. The most heavily damaged lifelines were water and electric power. Other lifelines were substantially affected included communications, wastewater, ports, railways, highways, roads, and bridges.

The Napa Earthquake was a moderate-sized earthquake in California. Recorded peak ground accelerations were as high as 0.49g, with a recorded peak ground velocity of 15 inches per second. This report presents the findings for the following lifelines: water, telephone, highways, railroads, ports, hospitals, airports, fire department response, radio communications, highway bridges, electric, and natural gas.