Copyright Information: All images are in the public domain and available for free. If you use this image, credit NOAA/NGDC, M. Celebi, U.S. Geological Survey. |
Reinforced concrete garage building off Ventura Boulevard at the intersection of Highway 405. Damage was caused by the 1994 Northridge earthquake. Although the building appears to have shear walls, several columns were damaged. The columns were made more vulnerable to damage when their spans were shortened by the balcony parapets. This is knows as the 'short column' effect. When columns are shortened, the effect is to make them less ductile. An attempt has been made to repair the column by putting a partial jacket around it. Image Credit: M. Celebi. U.S. Geological Survey January 17, 1994 Northridge USA earthquake At 4:31 am local time (12:31 GMT) on Monday, January 17, 1994, a magnitude 6.8 earthquake twenty miles west northwest of downtown Los Angeles awoke nearly everyone in southern California. Damage was most extensive in the San Fernando Valley, the Simi Valley, and in the northern part of the Los Angeles Basin. It took 57 lives and caused $10 billion in property damage. This set depicts the damage in Northridge the epicentral area. Event Data:
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