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USA Festival

Summer 2016 Education Corner


2016-09-20

Over the years, an array of tools, modules, and activities applying EarthScope scientific data have been developed for a wide variety of users. K–12 and university educators, or informal programs like museums, can benefit from these resources.
Teleseismic P-wave cross-section (Humphreys et al., 2015), with Rayleigh wave image of crust (Shen et al., 2013). Wyoming high-velocity mantle extends to ~300 km.

Recent Craton Growth by Under-accreting an Ocean Plateau Beneath Wyoming


2016-09-20

Science Nugget - By Eugene Humphreys (University of Oregon Eugene) and Robert van der Hilst (MIT) - NSF # EAR 952194 | 2010-2012

Seismic tomography images high-velocity…

Earthscope Globe

Crustal Strength Profiles Across the Brittle-Ductile Transition


2016-09-20

Science Nugget - By John Platt (University of Southern California) and W. M. Behr (University of Texas Austin) - NSF EAR # 0809443 | 2008-2012 

In this project we…

Vertical velocities predicted by model selection (statistical, s-model) using GPS data and the best-fitting physical deformation model (p- model) simulating the vertical crustal response of earthquake cycle loading at depth throughout the past 300 or more years.

The Vertical Fingerprint of Earthquake Cycle Loading in Southern California


2016-09-19

Science Nugget - By Bridget Smith-Konter (University of Hawaii at Manoa), David Sandwell (Scripps Institution of Oceanography), Xiaopeng Tong (University of Washington…

Sliced view of present-day (calendar year 2011) Coulomb stress accumulation model of the San Andreas Fault System based on interseismic stress accumulation rate model.

Locked, Loaded and Looming?


2016-09-19

Exploring earthquake cycle stress history of seismically active faults of the San Andreas Fault System
Figure 1. About 16,000 pairs of shear wave splitting parameters in the study area. The orientation of the red bars represents the fast polarization direction, and the length is proportional to the splitting time (Liu et al., 2014).

Mantle Anisotropic Structure and Dynamics Beneath the Western United States


2016-09-19

Constraints from Shear-wave Splitting Analysis
Seismic velocity in the Earth along the slice BB’.  Red area contains material with low velocities that is rising up from deep in the Earth.

Hot, Wet Mantle Below the New Madrid Seismic Zone


2016-09-19

Science Nugget - By Charles Langston (University of Memphis), Christine Powell (University of Memphis), Steve Horton (University of Memphis), Heather Deshon (Southern Methodist…,

Jenny Nakai with seismometer.

Lights, Cameras, Action!


2016-09-19

EarthScope Stories Chronicled on Video
spatial and temporal variations in fault slip near the 1998 Mw 5.1 earthquake that is the largest instrumentally observed earthquake in the San Juan Bautista area (Taira et al., 2014)

Imaging of Slow Fault Movements with Microearthquakes


2016-09-19

Variability of Fault Slip Behavior Along the San Andreas Fault in the San Juan Bautista Region
Uppermost mantle isotropic velocity structure beneath USArray from Pn tomography.

Uppermost mantle seismic velocity structure beneath USArray


2016-09-19

Science Nugget - By Jeanine Buehler (University of California San Diego) and Peter Shearer (University of California San Diego) - NSF EAR # 1358510 | 2014 

We…