peak ground acceleration

On July 4 and 5, two major earthquakes, followed by several thousand smaller ones, struck Southern California. Their size and the damage they caused captured attention around the country. What tends to get much less notice from the public is what can be done to prevent catastrophic damage from big quakes. Had the epicenter of these latest large California earthquakes been closer to downtown Los Angeles, tens of thousands of apartment buildings could have been damaged or collapsed. Consequently, structural engineers are calling on legislators to prepare for and prevent earthquake damage by crafting new and improved building codes...

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