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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/unesp/374965
Title: 
Ocean floor focuses energy on Crescent City, CA
Author(s): 
National Oceanic and Atmospheric Administration (NOAA)
Language: 
eng
Description: 
  • Educação Superior::Ciências Exatas e da Terra::Geociências
  • Educação Superior::Ciências Exatas e da Terra::Oceanografia
  • The March 11, 2011 tsunami that devastated Japan was able to reach more than 4,500 miles across the Pacific basin and bring destruction to Crescent City, California. This image of the projected tsunami wave heights shows a band of red that extends from the Central Pacific to the U.S West Coast. The cause of this area of higher wave height is the Mendocino Fracture Zone – an oceanic plate boundary that extends westward from the San Andreas Fault and Cascadia subduction zone (two areas that cause frequent earthquakes in the U.S.). Visible in the image, the ocean floor of the fracture zone is raised up due to tectonic activity and runs almost exactly towards Crescent City. Areas with abrupt rises in the ocean floor cause the tsunami waves to slow down and increase in height. The location of the Mendocino Fracture Zone effectively focused more energy on the areas surrounding Crescent City
Issue Date: 
  • 11-Jul-2011
  • 14-Mar-2011
  • 10-Apr-2012
  • 10-Apr-2012
  • 10-Apr-2012
Publisher: 
NOAA
Keywords: 
  • Bathymetry
  • Ocean floor
  • Cascadia subduction zone
  • San Andreas Fault
  • Mendocino Fracture Zone
  • Wave heights
  • Crescent City
  • California
  • Pacific ocean
  • Tsunami
  • Educação Superior::Ciências Exatas e da Terra::Geociências::Geotectônica
  • Educação Superior::Ciências Exatas e da Terra::Oceanografia::Interação do Oceano com o Leito do Mar
  • Educação Superior::Ciências Exatas e da Terra::Oceanografia::Oceanografia Geológica
Notes: 
To show the raising of the ocean floor that extends from the Central Pacific to the U.S West Coast
Source: 
http://objetoseducacionais2.mec.gov.br/handle/mec/20961
URI: 
http://acervodigital.unesp.br/handle/unesp/374965
Rights: 
All animations and images accessed through this website are in the public domain and are freely available for reuse. Please credit NOAA, just those four letters, along with any other entities listed in the Copyright section for each resource
Type: 
imagem
Appears in Collections:MEC - Objetos Educacionais (BIOE) - OE

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