October 17, 1989 (Part 1)
On October 17, 1989, at 5:04 pm a magnitude M6.9 earthquake struck near Loma Prieta, California. It was a tragic reminder of the destructive power of earthquakes. However, it was also a watershed moment in seismic research. 30 years later, we revisit the earthquake through the eyes of the scientists who experienced it. And studied it. These are their stories. In Part 1 (of 4-part series), scientists reminisce about where they were when the earthquake first hit and what they saw happening around them in the moments after.

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October 17, 1989 (Part 2)

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October 17, 1989 (Part 3)

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Northridge, CA Earthquake Open File Report 94-179-I

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Kīlauea Volcano — Lava Scenes From Fissure 8

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Time-lapse video of bluff erosion on Barter Island, Alaska

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Effects and Accounts of the 1811-1812 New Madrid Earthquakes

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Lava fountain engulfs USGS HVO V3cam - December 6, 2025

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Shaking of Frontier Building, M7.0 November 30, 2018, Anchorage Quake

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Fly Over the Seafloor of San Francisco Bay

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October 17, 1989 (Part 4)

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Time-lapse images of Mount St. Helens dome growth 2004-2008

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An Illustrated Guide to Reading a Seismogram

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HayWired Scenario

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Top 5 Yellowstone geologic stories of 2025 (Yellowstone monthly update - January 2026)

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Shaking of Atwood Building, Mw 7.0 November 30, 2018, Anchorage Quake

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Top visitor questions about Yellowstone's thermal areas (Yellowstone Monthly Update - June 2026)
![[V3cam] Kīlauea volcano, Hawaii (south Halemaʻumaʻu crater)](https://i.ytimg.com/vi/gXKuUyKt8mc/hqdefault.jpg?v=6945d02a&sqp=-oaymwEjCNACELwBSFryq4qpAxUIARUAAAAAGAElAADIQj0AgKJDeAE=&rs=AOn4CLDIX4yNeVjb6xXcxmUSihmmX-v_Nw)
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[V3cam] Kīlauea volcano, Hawaii (south Halemaʻumaʻu crater)

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Mount St. Helens: May 18, 1980

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