earthquakes
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enEarthquakes and tsunamis
https://plus.maths.org/content/earthquakes-and-tsunamis
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A massive earthquake hit Japan earlier today, registering 8.9 on the Richter scale and the largest ever recorded for Japan. The tsunami triggered by the quake brought a 10m high wall of water in northern Japan, and other countries are now waiting for it to hit their shores.
</p><p><a href="https://plus.maths.org/content/earthquakes-and-tsunamis" target="_blank">read more</a></p>https://plus.maths.org/content/earthquakes-and-tsunamis#commentsearthquakestsunamiwaveFri, 11 Mar 2011 14:19:31 +0000Rachel5443 at https://plus.maths.org/contentMeasuring catastrophic risk
https://plus.maths.org/content/misinterpretation-risk-metrics
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Shane Latchman </div>
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<p>Insurance companies offer protection against rare but catastrophic events like hurricanes or earthquakes. But how do they work out the financial risks associated to these disasters? Shane Latchman investigates.</p>
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<h3>The notion of uncertainty</h3>
<p>In the early 19th century, the French mathematician <a href="http://www-history.mcs.st-and.ac.uk/Biographies/Laplace.html">Pierre-Simon de Laplace</a> wrote of a concept he had been thinking about for some time. The concept became known as <em>Laplace's demon</em> and was a thought experiment which sought to clearly explain the existence of uncertainty. It is described in his <em>Essai Philosophique sur les Probabilités</em> (1814) as:
</p><p><a href="https://plus.maths.org/content/misinterpretation-risk-metrics" target="_blank">read more</a></p>https://plus.maths.org/content/misinterpretation-risk-metrics#commentsconfidence intervalearthquakesinsurancemathematical modellingprobabilityriskrisk analysisstatisticsThu, 23 Dec 2010 14:36:31 +0000mf3445360 at https://plus.maths.org/contentModelling catastrophes
https://plus.maths.org/content/modelling-catastrophes
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Shane Latchman </div>
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Hardly six months go by without a natural disaster striking some part of the globe. While it's next to impossible to predict these catastrophes, let alone prevent them, mathematical modelling gives a way to prepare for their impact. <b>Shane Latchman</b> explains. </div>
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<div class="pub_date">December 2009</div>
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<p>Pictures from Onna town destroyed during the L'Aquila (Abruzzo) earthquake in Italy, April 2009.</p><p><a href="https://plus.maths.org/content/modelling-catastrophes" target="_blank">read more</a></p>https://plus.maths.org/content/modelling-catastrophes#comments53earthquakesinsurancemathematical modellingrisk analysisstatisticsTue, 01 Dec 2009 00:00:00 +0000plusadmin2373 at https://plus.maths.org/contentTsunami
https://plus.maths.org/content/tsunami
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Michael McIntyre </div>
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The tsunami of December 26th 2004 has focused the world's attention on this terrifying consequence of an underwater earthquake. <b>Michael McIntyre</b> explores the underlying wave mathematics. </div>
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<div class="pub_date">March 2005</div>
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<p><i>What do you do if you're at the seaside, and notice the sea gradually withdrawing - the water getting further and further away, further than for ordinary tides?</i></p>
<p><i>Well, sadly everyone knows the answer today. Run like the clappers up the nearest hill or high ground, if you can. As our ancestors might have put it thousands of years ago, the Sea God has breathed in, and you'd better make yourself scarce before he breathes out again.</i></p><p><a href="https://plus.maths.org/content/tsunami" target="_blank">read more</a></p>https://plus.maths.org/content/tsunami#comments34earthquakestsunamiwaveweatherweather forecastingTue, 01 Mar 2005 00:00:00 +0000plusadmin2265 at https://plus.maths.org/contentQuake-proof
https://plus.maths.org/content/quake-proof
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How can lives be saved next time the earth moves? </div>
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<div class="pub_date">10/02/2005</div>
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<div style="position: relative; left: 50%; width: 70%"><font size="2"><i>Back to the <a href="https://plus.maths.org/content/ingenious-constructing-our-lives">Constructing our lives package</a></i></div><br clear="all">
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<p>The recent tsunami caused by an underwater earthquake near Sumatra has reminded us of the dangers we face from earthquakes. But although we may be powerless to stop natural disasters from happening, much can be done to save lives next time the earth moves.</p><p><a href="https://plus.maths.org/content/quake-proof" target="_blank">read more</a></p>https://plus.maths.org/content/quake-proof#commentsearthquakesengineeringharmonicsnatural frequencytuned mass damperThu, 10 Feb 2005 00:00:00 +0000plusadmin2664 at https://plus.maths.org/contentWhen will they blow?
https://plus.maths.org/content/when-will-they-blow
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Can maths help save lives by making more accurate predictions of future volcanic eruptions? </div>
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<div class="pub_date">18/10/2004</div>
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<p>Sometimes a watched pot does boil, or at least simmer, as scientists monitoring Mount St. Helens have found out. The recent earthquakes, oozing lava, and billowing clouds of steam and ash have been the most intense activity at the heavily monitored mountain in 18 years, and have highlighted the importance of predicting eruptions and understanding what makes volcanoes tick.</p><p><a href="https://plus.maths.org/content/when-will-they-blow" target="_blank">read more</a></p>https://plus.maths.org/content/when-will-they-blow#commentsearthquakesfluid mechanicsmathematical modellingpredictionvolcanic eruptionSun, 17 Oct 2004 23:00:00 +0000plusadmin2509 at https://plus.maths.org/content