GEOS 218 Lecture Notes - Natural Disaster, Return Period, San Andreas Fault
Document Summary
What is a hazard? inevitable and always occurring that cannot be prevented from happening, could cause damage or loss of life. An event causing major damage or loss of life, and linked to humans, is not inevitable- with planning, mitigation, construction codes and preparedness damages/losses can be minimized, mitigated, or avoided. Determine when and where natural disasters occur, how and why, and societal impact. When the magnitude is smaller, the frequency is more common. When magnitude is larger, it is less common. What patterns do you see in this video: https://www. youtube. com/watch?v=jhmf-iwp6um majority of the earthquakes seem to happen in zones where tectonic plates collide. Over time the earthquakes seemed to have formed a boundary of the tectonic plates. It took 118 years to get to 2 billion people, and then 37 years for the next billion, then 15 years. And since 1974 after 4 billion people, it has taken 12-13 years to get to another billion people.
