Predicting Earthquakes - Seismic Hazards In Haiti And California

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Predicting Earthquakes - Seismic Hazards In Haiti And California.

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In 2008 a team of scientists warned that a large earthquake could hit Haiti. Local geologist Carol Prentice, who was part of that team, discusses how they came to that conclusion and how the Bay Area could be next.

The aftermath of the earthquake in Haiti has been devastating. The Academy is part of San Franciscos Haiti Earthquake Relief program; we have a coin collecting machine on-site to collect donations to assist four different organizations.

• http://www.calacademy.org/science/
• http://www.ig.utexas.edu/jsg/18_cgg/Mann3.htm
• http://www.sfgov.org/site/sf311_index.asp?id=116011
• http://earthquake.usgs.gov/

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100 percent Chance of an Earthquake Today

There's a 100 percent chance of an earthquake today. Though millions of persons may never experience an earthquake, they are very common occurrences on this planet. So today -- somewhere -- an earthquake will occur.

It may be so light that only sensitive instruments will perceive its motion; it may shake houses, rattle windows, and displace small objects; or it may be sufficiently strong to cause property damage, death, and injury.

It is estimated that about 700 shocks each year have this capability when centered in a populated area. But fortunately, most of these potentially destructive earthquakes center in unpopulated areas far from civilization.

Since a major portion of the world's earthquakes each year center around the rim of the Pacific Ocean (Ring of Fire), referred to by seismologists as the circum-Pacific belt, this is the most probable location for today's earthquake. But it could hit any location, because no region is entirely free of earthquakes.

Stating that an earthquake is going to occur today is not really "predicting earthquakes". To date, they cannot be predicted. But anyone, on any day, could make this statement and it would be true.

This is because several million earthquakes occur annually; thereby, thousands occur each day, although most are too small to be located. The problem, however, is in pinpointing the area where a strong shock will center and when it will occur.

Earthquake prediction is a future possibility, though. Just as the Weather Bureau now predicts hurricanes, tornadoes, and other severe storms, the NEIC may one day issue forecasts on earthquakes.

Earthquake research was stepped up after the Alaska shock in 1964. Today, research is being conducted by the USGS and other federal and state agencies, as well as universities and private institutions. Earthquake prediction may some day become a reality, but only after much more is learned about the earthquake mechanism.

• http://earthquake.usgs.gov/learn/topics/100_chance.php
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Category:

Science & Technology

Tags:

• predicting
• earthquakes
• predictions
• seismic
• hazards
• haiti
• california
• scientists
• geologists
• aftermath
• seismologists
• research

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[lazyperfectionist1]

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[JeniTheBat]

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[TheJatmikoo]

TOP Man

[MyDavidsun]

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[andreeaweed]

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[TheSanovita]

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[lazyperfectionist1]

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