Geophysical inversion is deriving the structure of the Earth's subsurface from data collected at the surface, using a formal 'inversion' algorithm that creates a subsurface model structure directly from the surface...

This tutorial introduces novice users to reading the lines on a seismograph. Topics include how to distinguish a real earthquake from background vibrations (microseisms) recorded by the instrument, how to read the minute...

Educators in the geophysical sciences will find much to work with on this site created by the National Oceanic & Atmospheric Administration's National Geophysical Data Center. Utilizing data captured over time by their...

This lesson provides an overview of destructive earthquakes and their connection to tectonic movements of the Earth's crust. It includes a discussion of some especially destructive historic earthquakes, and a brief...

This website, authored and curated by David Stern, provides an outline of the motion of charged particles in the Earth's magnetic fields, and the Van Allen and outer radiation belts. It summarizes their discovery, their...