This portal provides access to a variety of resources explaining the methods used to determine the location and depth of an earthquake. The resources include the 'Travel Time Information and Calculator', an online tool that lets users choose a seismic station location and a recent earthquake, and see how long it takes different types of seismic waves to travel from the epicenter to their locations. There is also a discussion of how earthquake depths are determined by examining the characteristics of the S- and P-waves, an animation of seismic waveforms, and a selection of activities, slideshows, and other references.


  • Science > Technology
  • Science > Earth Science
  • Science > Geology
  • Social Studies > Geography
  • Education > General

Education Levels:

  • Grade 1
  • Grade 2
  • Grade 3
  • Grade 4
  • Grade 5
  • Grade 6
  • Grade 7
  • Grade 8
  • Grade 9
  • Grade 10
  • Grade 11
  • Grade 12


Informal Education,NSDL_SetSpec_ncs-NSDL-COLLECTION-000-003-112-021,Vocational/Professional Development Education,NSDL,Science -- Geology,High School,Undergraduate (Lower Division),Social Sciences,Higher Education,oai:nsdl.org:2200/20120506194652355T,General Public,Science -- Instructional issues,Science -- Earth science,Social studies -- Geography,Education,Technology,Geoscience,Science -- Technology



Access Privileges:

Public - Available to anyone

License Deed:

Creative Commons Attribution Non-Commercial Share Alike


This resource has not yet been aligned.
Curriki Rating
'NR' - This resource has not been rated
'NR' - This resource has not been rated

This resource has not yet been reviewed.

Not Rated Yet.

Non-profit Tax ID # 203478467