July’s 5.4-magnitude Chino Hills Earthquake was a jolting reminder that we all need to prepare for the “big one”. It is no secret that California is riddled with earthquake faults. Click here for a map which shows seven of the faults with the probability of a magnitude 6.7 earthquake. Scientists have been reporting to us for some time now that we are due for a significant (big) earthquake. The southernmost section of the San Andreas Fault, which is just east of downtown Los Angeles, undergoes a major shift every hundred and fifty years or so. The last serious earthquake was about 100 years before Los Angeles was founded. So, Los Angeles is approximately 178 years overdue for the “big one”.
There is no doubt that when a serious earthquake strikes, and it is only a matter of time, millions of California citizens will be left without tap water, freeways and bridges will crumble and fall and hundreds of fires will likely break out. The 1994 Northridge earthquake registered a magnitude of 6.7, killed 57 people and caused over 20 billion dollars in damage.
To get our attention, geologists and others have developed the Great Southern California Shakeout, which is taking place this week.



