1906 San Francisco earthquake

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Americans Focus On Responding To Earthquake Damage, Not Preventing It, Because They Are Unaware Of Their Risk

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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California Could Be Hit by an 8.2 Mega-Earthquake, and It Would Be Catastrophic

Rong-Gong Lin II | Los Angeles Times | September 19, 2017

The magnitude 8.2 earthquake that ravaged southern Mexico on Sept. 7 was the largest to shake the country in nearly a century. Like California, Mexico is a seismically active region that has seen smaller quakes that have caused death and destruction. But the Sept. 7 temblor is a reminder that even larger quakes — while rare — do occur. Scientists say it’s possible for Southern California to be hit by a magnitude 8.2 earthquake. Such a quake would be far more destructive to the Los Angeles area because the San Andreas fault runs very close to and underneath densely populated areas...

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California’s Other Drought: A Major Earthquake Is Overdue

California earthquakes are a geologic inevitability. The state straddles the North American and Pacific tectonic plates and is crisscrossed by the San Andreas and other active fault systems. Tragic quakes that occurred in 2017 near the Iran-Iraq border and in central Mexico, with magnitudes of 7.3 and 7.1, respectively, are well within the range of earthquake sizes that have a high likelihood of occurring in highly populated parts of California during the next few decades. The earthquake situation in California is actually more dire than people who aren't seismologists like myself may realize. Although many Californians can recount experiencing an earthquake, most have never personally experienced a strong one. For major events, with magnitudes of 7 or greater, California is actually in an earthquake drought. Multiple segments of the expansive San Andreas Fault system are now sufficiently stressed to produce large and damaging events.

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