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<br />Colorado Earthquake Hazard
<br />
<br />ture and lifelines, such as roads and electric lines,
<br />are located along the Front Range urban corridor.
<br />There are also many schools, hospitals, and other
<br />critical facilities. Areas on the western slope and in
<br />southern Colorado have a significant level of earth-
<br />quake risk. Large earthquakes that occur in Utah,
<br />New Mexico, and Wyoming also affect Colorado. For
<br />example, Colorado was affected by the 5.5 magni-
<br />tude Dulce, New Mexico earthquake on January 23,
<br />1966. Damage occurred in Colorado from the 5.5
<br />magnitude earthquake in Wyoming's Laramie
<br />Mountains on October 18, 1984.
<br />
<br />Listed below are 24 Colorado counties with the high-
<br />est earthquake risk based upon population and seis-
<br />mic activity.
<br />. Denver (467,610)
<br />. Adams (265,038)
<br />. Douglas (60,391)
<br />. Larimer (186,136)
<br />. Clear Creek (7,619)
<br />. Pitkin (12,661)
<br />. Mesa (93,145)
<br />
<br />. Boulder (225,339)
<br />. Arapahoe (391,511)
<br />. Jefferson (438,430)
<br />. Summit (12,881)
<br />. Chaffee (12,684)
<br />. Garfield (29,974)
<br />. Rio Blanco (5,972)
<br />
<br />. Moffat (11,367)
<br />. Eagle (21,928)
<br />. Pueblc (123,051)
<br />. Archuleta (5,345)
<br />. Hinsdale (467)
<br />
<br />. Routt (14,088)
<br />. Ouray (2,295)
<br />. Las Animas (13,765)
<br />. San Juan (745)
<br />. Montrose (24,423)
<br />
<br />Facilities & Resources at Risk
<br />
<br />Many of Colorado's lifelines, such as power and
<br />other utility lines, are at risk from earthquakes. In
<br />addition, infrastructure, special facilities, and criti-
<br />cal facilities are at risk from earthquakes and other
<br />natural hazards in Colorado.
<br />
<br />Infrastructure and lifelines threatened by
<br />earthquakes:
<br />
<br />. power plants and transmission lines
<br />. natural gas and petroleum lines
<br />. highway. and bridges
<br />. dams and irrigation infrastructure
<br />. airport facilities and runways
<br />
<br />COLORADO EARTHQUAKES
<br />1870 TO PRESENT
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