P52A
Corning, OH, USA
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Teachable Moments
The Utah Mine Collapse
When a mine collapsed in Utah, 400 seismometers in the region were recording...
TOPICS: Focal mechanisms, P wave first motions, data modeling
MORE INFORMATION: Berkeley Moment Tensor Report
The 23 August 2011 M5.8 Mineral, VA earthqake
A magnitude 5.8 earthquake occurred near the nation's capitol.
TOPICS: Central and Eastern United States, record sections, source mechanism, strainmeter data, horizontal displacement
MORE INFORMATION: Watch the USArray Earthquake Wave Visualization of this earthquake on the IRIS website.
Animations
Seismic Wavefield Animations
Charles Ammon, a professor at Penn State University, has developed animations of real data showing how seismic waves sweep the transportable array of seismometers. Watch how earthquake waves originating from the US and around the world cause the ground at each seismometer to slightly shift up and down.
TOPICS: wavefronts, three-component seismograms, great-circle direction, ground displacements
Seismic Tomography Animations
View how researchers use seismic waves to image earth's interior.
TOPICS: tomography
MORE INFORMATION: Introductory description of how seismic tomography is used to determine Earth structure (3.5 MB PDF)
For more earth science publications, activities, professional development, internships, animations, museum displays, free software and more, visit EarthScope Education and Outreach and IRIS Education and Outreach.
