California has been plagued with earthquakes over the centuries; earthquakes that are a severe danger to life and land. earthquakes are prevalent because in california

There are a few reasons why earthquakes are so common in California. First of all California has many, many fault lines. Also in California there are two plates the Pacific Plate and the North American plate, the Pacific plate moves past the North American plate about two inches each year. The strain of the two plates also contributes to the earthquakes.
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Humans have survived and thrived in mexico city by using technology to create greater access to land. when the spanish conquered the aztec capital, tenochtitlan, in the 16th century, they built mexico city by draining the lakes and filling in the lake water to create more arable land for agriculture. this technique of land reclamation has continued to be fundamental to human civilization in mexico city. 

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