238: Unveiling the Earth's Secrets - The Completion of the U.S. Magnetotelluric Array
Seismic Soundoff17 Okt 2024

238: Unveiling the Earth's Secrets - The Completion of the U.S. Magnetotelluric Array

"The MTArray is changing how we explore for minerals and critical resources, and it’s paving the way for sustainable energy development." In this episode of Seismic Soundoff, host Andrew Geary speaks with Adam Schultz about completing the U.S. Magnetotelluric (MT) Array after 18 years. This groundbreaking project has mapped the electrical properties of the Earth’s crust across the contiguous United States. Adam explains how this geophysical method has evolved from pure science into a critical tool for protecting national infrastructure and identifying valuable resources. He shares insights into the unexpected challenges and major discoveries made while offering a bold call to action for the geophysics community to think bigger and push the boundaries of exploration. Listen to learn how the MTArray is shaping the future of geophysics and infrastructure resilience. KEY POINTS AND TAKEAWAYS > The USMTArray's Evolution: Originally part of the EarthScope program, the MTArray project became crucial for understanding power grid and national infrastructure risks, especially from space weather events. > Critical Infrastructure Protection: Data from the MTArray has helped power grid operators mitigate risks from geomagnetically induced currents, potentially preventing large-scale outages during extreme solar storms. > East Coast Vulnerabilities: The discovery of a sharp transition in the Earth's crust along the eastern U.S. revealed hidden vulnerabilities to geomagnetic storms, challenging previous assumptions about regional risk. > Surprising Challenges and Successes: The MTArray faced unexpected difficulties, especially in challenging environments like the Gulf Coast, but also saw breakthrough moments, including stunning data collected during a major solar storm. > A Call for Bold Exploration: Adam urges geophysicists to think bigger, use larger arrays, and embrace time-varying, 4D imaging to advance the field and apply geophysical techniques to real-world problems like sustainable energy development and critical mineral exploration. Editor's Note: Special thanks to Xiaolei Tu for recommending this episode. GUEST BIO Dr. Adam Schultz is a Professor of Geophysics at the College of Earth, Ocean & Atmospheric Science at Oregon State University. Adam led the 18-year effort to map the electrical properties of Earth’s crust and mantle across the contiguous United States. LINKS * Visit https://seg.org/podcasts/episode-238-unveiling-the-earths-secrets-the-completion-of-the-u-s-magnetotelluric-array/ for links to learn more about this project and Dr. Schultz. SHOW CREDITS Andrew Geary at TreasureMint hosted, edited, and produced this episode. The SEG podcast team comprises Jennifer Cobb, Kathy Gamble, and Ally McGinnis. If you have episode ideas or feedback for the show or want to sponsor a future episode, email the show at podcast@seg.org.

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Searching for Water in Kakuma: A GWB Story (Re-Release)

Searching for Water in Kakuma: A GWB Story (Re-Release)

For this episode, we’re re‑releasing one of the most powerful stories we’ve ever told - a complete listening experience that transports you to one of the most remote and challenging places on Earth. Searching for Water in Kakuma takes you inside the second‑largest refugee camp in the world, home to more than 185,000 people and still growing. There, a team of Canadian geophysicists joined forces with determined refugees and locals to take on a life‑or‑death challenge: finding safe, sustainable water for tens of thousands in East Africa. This episode offers an unflinching look at the obstacles, breakthroughs, and human resilience at the heart of applied geophysics. If you’re new to Seismic Soundoff, we’re glad you’ve chosen to listen. This podcast shares stories that connect geoscience to real‑world impact - from breakthrough research and innovative technology to the people applying them to solve Earth’s toughest challenges. Starting September 11, we’ll release three brand‑new interviews every week, bringing you fresh voices and powerful stories from across the geoscience community. For now, please enjoy this deeply personal and meaningful story. For show notes - including a full transcript, photos, and links to explore the Kakuma water project and Paul Bauman’s work - visit seg.org/podcast/Post/6368. To listen to other GWB podcasts, visit https://seg.org/podcast_tag/geoscientists-without-borders/. GEOSCIENTISTS WITHOUT BORDERS® Get involved with Geoscientists without Borders! Visit the GWB website at https://seg.org/gwb to learn about funded projects, donate, or apply to lead a project. Whether you are a student, researcher, or industry professional, your skills and support can make a significant difference. SPONSOR Schlumberger strives to be a unifying force for social and environmental stewardship, and engages in philanthropic activities that reflect the company’s values. As the founding sponsor of Geoscientists Without Borders®, Schlumberger believes in the science of geophysics to effect positive changes in communities facing environmental hardship and natural hazards. INTERVIEWS Paul Bauman, Landon Woods, Erin Ernst, Doug MacLean, Franklin Koch, Brendan O’Brien, Alastair McClymont Music in the episode courtesy of Epidemic Sound. Additional sound was provided by Brendan O’Brien. This episode was hosted, edited, and produced by Andrew Geary. Thank you to the SEG podcast team - Jennifer Crockett, Beth Donica, Ally McGinnis, Mick Swiney, and Adrienne White, as well as SEG staff Katie Burk and Linda Ford.

4 Sep 43min

Karelia La Marca - Geophysicist at bp (Inside IMAGE)

Karelia La Marca - Geophysicist at bp (Inside IMAGE)

Karelia La Marca shares how her passion for geophysics has taken her from the classroom to exciting fieldwork around the world. She offers an encouraging tip for first-timers while explaining the skills and teamwork that make science stronger. Get a front-row seat to the conversations shaping the geosciences. Inside IMAGE is a special series from Seismic Soundoff, SEG’s flagship podcast hosted by Andrew Geary, now in its 10th year. This limited-edition series takes you behind the scenes of IMAGE, the premier geoscience event, with exclusive interviews and in-depth discussions. Learn more at https://www.imageevent.org/.

28 Aug 16min

Bill Langin - Exploration and Development Leader (Inside IMAGE)

Bill Langin - Exploration and Development Leader (Inside IMAGE)

Bill shares how reconnecting with colleagues fuels collaboration and why sustainable energy means balancing oil, gas, and new sources to meet global needs. He discusses progress in reducing carbon impact, the urgent need to attract top talent, and takes pride in contributing to technologies that shape everyday life. Get a front-row seat to the conversations shaping the geosciences. Inside IMAGE is a special series from Seismic Soundoff, SEG’s flagship podcast hosted by Andrew Geary, now in its 10th year. This limited-edition series takes you behind the scenes of IMAGE, the premier geoscience event, with exclusive interviews and in-depth discussions. Stay connected at www.imageevent.org/.

28 Aug 8min

Adriana Citlali Ramírez - SEG Second Vice President (Inside IMAGE)

Adriana Citlali Ramírez - SEG Second Vice President (Inside IMAGE)

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28 Aug 21min

Lars Koehn - EVOLVE, Young Professional (Inside IMAGE)

Lars Koehn - EVOLVE, Young Professional (Inside IMAGE)

Get a front-row seat to the conversations shaping the geosciences. Inside IMAGE is a special series from Seismic Soundoff, SEG’s flagship podcast hosted by Andrew Geary, now in its 10th year. This limited-edition series takes you behind the scenes of IMAGE, the premier geoscience event, with exclusive interviews and in-depth discussions. Geoscientist Lars Koehn shares how his journey from student to young professional fuels his passion for clean energy and carbon storage. He reflects on the power of networking, mentorship, and collaboration at IMAGE, where new technologies and ideas shape the future of geoscience. And it's not too late to join the event driving innovation in Earth science. Learn more at https://www.imageevent.org/.

27 Aug 18min

Molly Turko - AAPG Technical Program Co-Chair (Inside IMAGE)

Molly Turko - AAPG Technical Program Co-Chair (Inside IMAGE)

Get a front-row seat to the conversations shaping the geosciences. Inside IMAGE is a special series from Seismic Soundoff, SEG’s flagship podcast hosted by Andrew Geary, now in its 10th year. This limited-edition series takes you behind the scenes of IMAGE, the premier geoscience event, with exclusive interviews and in-depth discussions. Structural geologist Molly Turko shares why she loves the diversity of ideas and people at IMAGE, from AI applications to new fault-picking methods. She highlights how collaboration across disciplines sparks fresh insights and why these conversations make geoscience both motivating and fun. And it's not too late to join the event driving innovation in Earth science. Learn more at https://www.imageevent.org/.

27 Aug 16min

Alison Malcolm - Vice President, SEG Publications (Inside IMAGE)

Alison Malcolm - Vice President, SEG Publications (Inside IMAGE)

Get a front-row seat to the conversations shaping the geosciences. Inside IMAGE is a special series from Seismic Soundoff, SEG’s flagship podcast hosted by Andrew Geary, now in its 10th year. This limited-edition series takes you behind the scenes of IMAGE, the premier geoscience event, with exclusive interviews and in-depth discussions. Alison Malcolm, SEG’s incoming VP for Publications, joins us to share why IMAGE’s mix of academia and industry, along with its broad technical themes, makes it a vibrant space for connection and idea‑sharing. And it's not too late to join the event driving innovation in Earth science. Learn more at https://www.imageevent.org/.

26 Aug 7min

Bunmi Elebiju - SEG Technical Program Vice Chair (Inside IMAGE)

Bunmi Elebiju - SEG Technical Program Vice Chair (Inside IMAGE)

Get a front-row seat to the conversations shaping the geosciences. Inside IMAGE is a special series from Seismic Soundoff, SEG’s flagship podcast hosted by Andrew Geary, now in its 10th year. This limited-edition series takes you behind the scenes of IMAGE, the premier geoscience event, with exclusive interviews and in-depth discussions. As Vice Chair of the IMAGE 2025 Technical Program, Bunmi Elebiju highlights the event’s multidisciplinary and global nature, with over 1,100 presentations, interactive exhibits, and strategic networking opportunities, as a catalyst for shaping the future of the energy industry. And it's not too late to join the event driving innovation in Earth science. Learn more at https://www.imageevent.org/.

26 Aug 9min

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