2019-02-14Geodesy is the science of measuring the size, shape, and gravity field of Earth, and how these change with time.
2019-02-14The USArray has operated for over 15 years as a community science facility designed to address EarthScope’s goal of understanding the structure and evolution of the North American continent.
2019-02-14Sharing Science through the EarthScope Speaker Series and Save the Date for the EarthScope Legacy Education and Outreach Virtual Workshop
2019-02-14The Gold Standard for Scientific Drilling Through an Active, Continental Transform Fault
2018-09-04EarthScope data is changing our views of this billion-year-old feature
2018-08-31New ocean-bottom seismometers complement the Transportable Array
2018-08-31What causes earthquakes in the interior of North America, far from plate boundaries?
2018-08-29This issue features the first ANGLE educator workshop, which focused on giving educators tools for teaching about Alaska geoscience and community resiliency to tsunami and earthquake hazards.
2018-05-04PBO station P496 not only shook during the 7.2 El Mayor–Cucapah earthquake in northwestern Mexico, but moved permanently as a result of it.
2018-01-28New Alaska data reaches beyond earthquakes
2018-01-24I got into geology originally because I was always fascinated by the history of the earth.
Science Fair season is coming soon, giving students a chance to explore hands-on science. (Photo by Molly Tedesche)
In every inSights issue, we feature a few of the dozens of
2017-10-12In every InSights issue, ESNO features two of the dozens of tools, modules, and activities that utilize EarthScope data to benefit a wide variety of users (K–12, university educators, informal programs like museums or after-school programs).
2017-10-12EarthScope’s San Andreas Fault Observatory at Depth reveals the pathways of fluids carried along the fault’s fracture network
Elliot Wilson of Pioneer Earthworks operates the drill at Alaska Transportable Array station D27M. Photo by Max Enders, IRIS.
2017-07-26How EarthScope’s infrasound and seismic capabilities monitor evolving volcanic eruptions
by Andy Frassetto and Kasey Aderhold, IRIS - NSF # SAGE: 1261681, MRI-R2: 0960275 | Summer 2017
Observations of infrasonic signals have…
2017-07-20In every InSights issue, ESNO features two of the dozens of tools, modules, and activities that utilize EarthScope data to benefit a wide variety of users (K–12, university educators, informal programs like museums or after-school programs)
2017-05-05How EarthScope data help reveal the roots of anomalous seismic zones in the southeastern U.S.
2017-05-05A new online course connects teachers across Alaska to real-time seismic data
2017-05-05In every InSights issue, ESNO features two of the dozens of tools, modules, and activities that utilize EarthScope data to benefit a wide variety of users (K–12, university educators, informal programs like museums or after-school programs)
by Gail McCormick - Winter 2017
2017-02-01In every InSights issue, ESNO features two of the dozens of tools, modules, and activities that utilize EarthScope data to benefit a wide variety of users (K–12, university educators, informal programs like museums or after-school programs)
2016-10-24Plate Boundary Observatory monitoring networks on Mount St. Helens
2016-10-24Enhancing earthquake detection and imaging beneath the volcano
2016-10-23For every InSights issue, we feature two of the dozens of tools, modules, and activities that utilize EarthScope data to benefit a wide variety of users. We intend to reach K–12 and university educators, as well as informal programs like museums.
2016-10-10PBO Station P405 battles the elements at an energetic plate boundary
2016-09-20Using the Plate Boundary Observatory to monitor landslide motion. GPS Station AC55 in Alaska was moving more than expected. Some movement was normal due to tectonic plate movement and residual motion from previous earthquakes—other GPS stations...
The EarthScope AGeS (Awards for Geochronology Student Research) program is a multi-year educational initiative aimed at enhancing interdisciplinary, innovative, and high-impact
2016-05-20While staying true to its intent as a telescope to peer into Earth’s interior, EarthScope has also been looking up to the heavens.
By Kerry Klein - Winter 2016
At first blush, the Mackenzie Mountains in northern Canada could be the Rocky Mountains’ long lost sibling. They appear just as angular and…
By Justin Sweet - Winter 2016
Canada’s Yukon and Northwest Territories are not known as hospitable land. This sub-arctic region, home to the Mackenzie Mountains project, presented
By Cascadia Initiative Expedition Team (CIET)[http://cascadia.uoregon.edu] - Winter 2015
The increasing public awareness that the
By ESNO - Fall 2015
The 2015 EarthScope National Meeting in Stowe, Vermont showcased pioneering EarthScope studies in poster and talk sessions, preceded by an optional pre-meeting field
Meet the New EarthScope National Office
Over the next four years, the EarthScope National Office (ESNO) at the University of Alaska Fairbanks will focus on bringing EarthScope science to
By Adam Mann - Fall 2015
In 1811 and 1812, the New Madrid earthquakes destroyed homes and buildings through northeast Arkansas and the Missouri Bootheel. According to…
By Doerte Mann and Beth Bartel - Spring 2015
One of the major benefits of the Plate Boundary Observatory (PBO) is its contribution to prototype Earthquake Early Warning systems (EEW).
By Andy Frassetto, IRIS - Spring 2015
In the fall of 2003, before EarthScope began, approximately 200 modern broadband seismic stations operated across the contiguous United States,
By Brandon Schmandt, University of New Mexico and Fan-Chi Lin, University of Utah - Spring 2015
One of the major observational components of the EarthScope program is the…
By Perle Dorr, IRIS - Summer 2014
Since the completion of the Transportable Array in the Lower 48 during fall 2013, USArray has focused on the creation of the Central and Eastern US
By Megan Anderson (CC), Kate Miller (TAMU), Susan Beck (UA), and Margarete Jadamec (UH) - Fall 2014
The structural dissimilarity between basement-involved arches and thin…
Organizers: Rebecca Flowers (CU), Ramon Arrowsmith (ASU), Jim Metcalf (CU), Blair Schoene (Princeton), Tammy Rittenour (USU) - Fall 2014
The EarthScope Institute on…
By Seth Stein, Carol Stein, and Eunice Blavascunas - Fall 2014
One of EarthScope’s major targets is the Midcontinent Rift (MCR), a 1.1 billion-year-old scar along which…
By Perle Dorr, IRIS - Spring 2014
The National Science Foundation is funding the creation of a Central and Eastern US Network (CEUSN) for the purpose of obtaining long-…
North Texas Earthquake Study Group, Southern Methodist University - Spring 2014
There is currently public, scientific, and policy concern regarding the recent increased…
By Donald Argus, Yuning Fu, and Felix Landerer - Summer 2014
Approximately 500 sites in California, most of which are part of the Plate Boundary Observatory, are weighing…
By ESNO - Winter 2014
Geology might not be the first thing that comes to mind if you heard the names SESAME, CAFÉ, SUGAR, and OIINK, but these are just a few examples of…
By Glen Mattioli and David Mencin - Winter 2014
Data from the Yellowstone Gladwin Tensor strainmeter (GTSM) network are improving the understanding of the structure of…
By Maureen Long and Vadim Levin - Winter 2014
On October 1st 2013 the seismic and magnetotelluric observatory network USArray, which is a key element of the EarthScope…
By ESNO - Fall 2013
Twenty-six interpretive professionals listened intently as Park Ranger Stephanie Kyriazis (photo) relayed the glacial history of Acadia National Park…
By Kang Hyeun Ji - Fall 2013
Continuous monitoring of volcanic activity provides a way to detect changes from usual activity, provide warning impending eruptions, and…
By UNAVCO - Summer 2013
PBO Change Order 35 authorized UNAVCO to construct two additional geodetic monuments at five existing PBO stations in order to test and compare…
Trevor Bollmann, Emily Wolin, Suzan van der Lee, and the SPREE Team - Summer 2013
Northwestern University, Washington University in St. Louis, the University of Minnesota…
By Manochehr Bahavar and Chad Trabant - Summer 2013
Diverse natural and man-made acoustic sources such as large explosions, rocket launches, and meteorites can act as…
By Perle Dorr, IRIS
With operating stations blanketing the southeastern states, the Transportable Array is on target to complete its journey across the contiguous US and…
By Catherine D. de Groot-Hedlin and Michael Hedlin - Spring 2013
The large meteorite that entered Earth's atmosphere above Chelyabinsk, Russia last month drew attention…
Cathryn A. Manduca - Winter 2013
InTeGrate is an NSF sponsored community effort to support the teaching of geoscience in the context of societal issues both within…
2013-01-01Evidence from the San Andreas Fault Observatory at Depth (SAFOD)
By IRIS - Winter 2013
The USArray’s Transportable Array (TA) seismometers and barometers have documented ground motion and atmospheric pressure changes due to Hurricane…
By Dr. Mike Gurnis, Caltech - Fall 2012
Sixty scientists met at Arizona State University on October 29 and 30 and discussed the current state and future potential for the…
By Glen Mattioli, UNAVCO - Fall 2012
Currently, there are 1120 GPS sites and 28 tilt meters, as well as numerous other strainmeters actively measuring deformation. In…
By Dr.Hersh Gilbert - Fall 2012
Do high mountains possess thick roots of low-density crust that keep them a"oat in the denser mantle, or do zones of low-density mantle…
Photo above, courtesy of Wendy Taylor
Hosted by James Madison University (JMU) and organized by ESNO, this workshop featured…
By Steven Semken - Summer 2012
When we affix meaning to any physical locality—by naming it, building a home there, exploring its geology and geophysics as EarthScope…
By Ramon Arrowsmith, ESNO Director - Summer 2012
A balance between EarthScope-centric data gathering, science, and the interests and capabilities of other complementary communities is
By Meghan Berg - Spring 2012
On August 23, 2011, the Mw 5.8 Mineral, Virginia, earthquake rocked the east coast of the U.S. While moderate in comparison to recent mega-…
Max Enders - Spring 2012
When UNAVCO set about building the Earthscope Plate Boundary Observatory (PBO) no challenge was nearly as daunting as the prospect of installing…
By ESNO - Spring 2012
Social media sites have emerged as a popular and effective form of communication among all age groups, with more than half of the teenage and adult…
The Transportable Array (TA) continues to roll eastward across the US. Having crossed the Mississippi River in March 2011, the TA will…
2011-12-22The global seismology community established a new model of international cooperation in response to the great Chile earthquake of February 27, 2010. The adaptable framework is geared to produce a high-quality, open-access data set of seismic waveforms col
2011-08-16In its July 2011 issue, Popular Science ranked EarthScope the “most epic” big science project because of its ambitious scope: Exploration of the deep geologic structure and evolution of an entire continent.
2011-03-22The San Andreas Fault (SAF) deforms by permanent creep and microseismicity in central California. Higher-thanhydrostatic fluid pressures, which could explain low strength and creep, were not detected during the San Andreas Fault Observatory at Depth (SAFO
2010-09-22GPS data collected as part of PBO, though, contain additional information that is very useful in ways unforeseen when the original PBO science plan was created.
By Bridget Smith-Konter, David T. Sandwell, and Meng Wei - Summer 2010
New estimates of seismic hazard (e.g., UCERF, http://www.scec.org/ucerf) will rely on high…, ,
Figure 2: Interferogram of the April 2010 earthquake in Baja California, Mexico, from ALOS PALSAR (Advanced Land Observing Satellite Phased Array type L-band Synthetic Aperture…, , ,
Figure 3: Remove-stack-restore interferograms for the Salton Sea area. (a) Physical model constrained by GPS data. (b) Stacked residual interferograms after applying the…,
Bird, P. (2009), Long-term fault slip rates, distributed deformation rates, and forecast of seismicity in the western United States from joint fitting of…
2010-03-22As the USArray Transportable Array marches eastward, seismic images are providing ever more detailed insight into present day structures of the crust and mantle beneath North America. But how old are these structures and what do they tell us about the geo