Effects of the 2009 Samoa tsunami
Reliant on remittances and tourism, the economy of Samoa shrunk by 5.2 percent in 2009, as things got tougher in sending countries, and the nation’s only major manufacturer—an automotive components plant—laid off more than 1,550 workers.
The inundation model is used to explore the general conditions under which fringing reefs act as coastal … Samoa Earthquake and Tsunami of September 29, 2009 Multiple reconnaissance teams traveled to Samoa in October and November 2009, and contributed to the preparation of this report. The maximum fault slip for this earthquake is much higher than for an inter-plate thrust earthquake of comparable magnitude. The refraction caused by underwater topography can also focus the tsunami energy. On other parts of the islands, river channels were excavated and new channels formed as return flow scoured sediment and transported it offshore. The generating earthquake was different from those that most commonly trigger tsunamis (see " Tsunami scientists go to areas hit by tsunamis as soon as possible to collect ephemeral data before it is degraded or destroyed by cleanup activities or natural processes. They collected sediment samples and documented the distribution and characteristics of both sand and boulder deposits. The tsunami was generated by a magnitude 8.1 earthquake that occurred about 190 km southwest of American Samoa at 6:48 a.m. Samoa Standard Time. As the plate flexes, tensional stress in the oceanic crust creates potentially large normal faults. As a result, tsunami waves change direction as underwater topography refracts their travel path.
In the hopes that disasters such as this can be minimized in the future, we attempt to understand the mechanism and impact of this tsunami. Another possible cause for the strong return flow is the shape of the waves in the tsunami wave train; this factor is being investigated using hydrodynamic models. This instance of self-evacuation underscores that education saves lives. In order to improve tsunami-inundation models—which predict the behavior of tsunamis and are vital for helping communities design evacuation routes, build stronger structures, and determine the best areas for building—the USGS survey teams collected data that included: Many people, including local officials and villagers alike, wanted to know more about this tsunami and to understand the risk from future tsunamis. While collecting data in American Samoa, I came across a small shrine on the foundation of the destroyed house of three girls who had died in the tsunami. This translates to higher vertical movement of the sea floor, lifting the entire ocean above the rupture zone.
Fringing reefs surround much of American Samoa and Samoa. The loss of life could have been much worse had residents of the islands not been prepared for this 2009 event. September 29, 2009 Samoa Tsunami, Southwest Pacific OceanThe tsunami that was triggered by a magnitude 8.1 earthquake on September 29, 2009, caused significant damage and loss of life on Samoa, American Samoa, and Tonga. The generating earthquake was different from those that most commonly … The teams also measured topography and bathymetry near the shore, including reef-flat elevations.
September 2009 um 17:48:10 Uhr UTC (6:48:10 Uhr Ortszeit). The USGS scientists who have participated so far in tsunami surveys on American Samoa and Samoa are (in alphabetical order by last name): For more insights into how data collected after tsunamis are used to benefit coastal communities, read USGS news release " To learn more about how the September 29 tsunami was generated, and to view computer animations of its propagation through the open ocean, visit " The tsunami was generated by a magnitude 8.1 earthquake that occurred about 190 km southwest of American Samoa at 6:48 a.m. Samoa Standard Time. Though this tsunami was not a Pacific-wide hazard, it was very destructive near the earthquake and killed 192 people in Samoa, American Samoa, and Tonga.
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