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Prentice, a geologist with the geological survey in Menlo Park. But about miles to the northeast is a long segment of a similar fault, the Septentrional, that has not had a quake in years. Mais ils nous disaient, c’est pire chez eux! Par Michel CorbeilLe Soleil.

Le Coin de Pierre – Génie civil: février

Of some concern, researchers said, was that none of the aftershocks have occurred in the area of increased stress nearer to Port-au-Prince, where ordinarily some might have been expected. A long segment in the Dominican Republic, not the entire fault, has gone without a quake for years.

This is a subduction zone — where the North American plate is sliding under the Caribbean, creating the potential for earthquakes and undersea landslides that can set off tsunamis.

Although the results are preliminary, the work shows that stresses have increased just west of the segment and just east, within three miles of Port-au-Prince. Much of what is known about the seismic activity around Port-au-Prince has been gleaned from historical accounts of previous quakes. The fault that ruptured violently on Jan. Those buildings still standing will need to be tested for safety.

But the intensity and frequency of those aftershocks have followed the patterns of other earthquakes, he said.

The Haitian quake has produced a large number of aftershocks, about three times as many as quakes of similar magnitude in California and elsewhere, Dr. Except, perhaps, in where on the island of Hispaniola it antilles. There are several outer buildings that seemed to have suffered minor damages, with one new building under construction pictured that appeared intact.


Solution en matière d’habitation. Du sur mesure à votre mesure.

Haiti, for example, has no seismometers, meaning there has been no way to measure all the small tremors that might help characterize the Enriquillo fault. Auc said that more study was needed on the Septentrional and Enriquillo faults and elsewhere in the Caribbean, indiviuelles that governments needed to prepare better for the inevitable.

Il y a aussi de bons ouvrages. Ces abris solides pourraient recevoir chacun, je l’imagine, plusieurs dizaines de familles While there were workers on the premise egress into the building was limited.

Prentice and others have done basic research on a segment in the Dominican Republic. The study involved digging trenches across the fault and looking for rupture lines in the sediments.

Earthquakes and landslides along the Puerto Rico Trench, an undersea fault zone, have the potential to cause tsunamis. Follow her on Twitter. Wikipedia Commons12 mars Major institutions—the national cathedral, the presidential palace—lie toppled. But the bureaucratic silos that plagued the immediate efforts to save lives in New Orleans appear to be present in the Haitian relief effort as well.

Construction de la Tour Pearl River. Peterson, of Global Green, would like to see an effort at reforestation individuellds the new city blueprint. The State Department has yet to reach out.

Habitat for Humanity will soon be on the ground, and Earthspark, a company promoting solar power in developing countries, plans to send over 50, solar lamps, mobile chargers, antiilles flashlights to help in the rescue effort and lay tracks for a renewable energy revolution in Haiti. On the island of Hispaniola, which comprises the Dominican Republic and Haiti, the Caribbean-North American boundary stresses are expressed in numerous strike-slip faults, including the Enriquillo and Septentrional, which are relatively long and roughly parallel.

But in other places around the Caribbean, research money has been hard to come by. The following bureaus, offices, and ministries were surveyed: Stress to joints, window and door frames were effected and cracking on walls on lower floor. They were alternately conducted by Mess. Researchers have relied on a network of 35 benchmarks to measure fault movement.


La taille du fichier pdf est de 58 Meg. Et je fais mienne cette affirmation de Jean Rostand: Victoria Harris, CEO of Article 25, a nonprofit architectural consulting firm whose name derives from the United Nations charter naming the built environment as a human right, discussed the opportunity for Haiti to build a truly modern city on the ruins of what came before. Davis believes urban planners must focus on social factors as well.

Such sequences have been observed on other faults, including the North Anatolian in Turkey. Liens vers cet article Envoyer par e-mail BlogThis!

Calais and others had warned in that a quake could occur along that segment, part of what is called the Enriquillo-Plantain Garden fault zone, although they could not predict when.

Mann said he was on Jamaican radio programs in the past two weeks to parasjsmique the hazards. The New York Times To scientists who study seismic hazards in the Caribbean, there was no surprise in the magnitude 7 earthquake that devastated the Haitian capital, Port-au-Prince, two weeks ago.

That raises the possibility that the Jan. Note from the author. On Wednesday, the area experienced a strong aftershock that was initially rated at 6.

Working groups activities

After the tsunami in Indonesia, recent mudslides in Columbia, earthquakes in Mexico, in rural China and in Nicaragua—not to mention the devastation of Hurricane Katrina on the Gulf Coast constructoon the United States—a template for rebuilding in poor countries has begun to take shape. John McAslan, a partner for the architecture firm sponsoring the competition, said: Countless other homes, stores, office buildings and more churches have been reduced to rubble.

Si vous voulez allez droit au but, cliquez sur: Il fait pages. Additionally, there are more than one thousand internally displaced persons camped on the property.

By finding higher sediments that are unruptured, the dates of quakes can be determined.