Articles

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, David Sandwell, Xiaopeng Tong, Samuel Howell, Neil Frazer (EAR 1147427/1424374) - 2016

The San Andreas Fault System,…

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, Christine Powell, Steve Horton, Heather Deshon, Charles Ammon, and Robert Herrman (EAR 1053530) - 2016

A recent study using analysis…,

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 and Peter Shearer (EAR 1358510) - 2016

We are updating our Pn tomography models for the western United States (Buehler and …

IRIS 2016 workshop participants gathered in Vancouver, WA, for a week of scientific presentations, discussions, field trips, and workshops.

IRIS 2016 Workshop


2016-09-01

Highlights Emerging Fields and Technologies in Seismology
PBO Station AV03

Augustine Island, Alaska


2016-08-10

PBO Station AV03 Takes a Blow
AGeS

2016 AGeS Awardees


2016-07-01

Summer 2016

The EarthScope AGeS (Awards for Geochronology Student Research) program is a multi-year educational initiative aimed at enhancing interdisciplinary, innovative, and high-impact