- Earthquakes
Uptick in earthquake activity at Mount St. Helens remains within background levels (July 15, 2023-Present)
Over the past three months, seismicity at Mount St. Helens has been elevated but remains within the normal range of…
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Volcano Watch — Not just polka dots: the hidden dance of processing GPS data
For over thirty years, high-precision GPS (Global Positioning System) measurements have been a key tool used by the USGS Hawaiian…
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USGS-Led Study Reassesses Earthquake Hazard Potential for Central California’s Hosgri Fault
Assessing earthquake hazards demands a comprehensive understanding of active faults, including their location, length, connectivity, slip rate, and rupture history.…
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Living with active volcanoes in the back yard of the Naples metropolitan area in Italy
Italy is home to numerous volcanoes and a long history of eruptions that are recorded both in the geologic record…
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Photo and Video Chronology – Kīlauea GPS campaign and Mauna Loa summit webcams
Hawaiian Volcano Observatory (HVO) geophysicists completed the annual GPS survey of Kīlauea in October 2023. On November 8, 2023, HVO…
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Volcano Watch — What’s shaking beneath Mauna Loa?
It’s hard to believe that nearly one year has passed since Mauna Loa erupted. Mauna Loa has been mostly quiet…
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Yellowstone’s Spectacular Spring: The Story of Grand Prismatic and the Little Dipper
Grand Prismatic Spring is one of the most visited sites in Yellowstone National Park. The feature has amazing story to…
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Habitat Preferences of Seabeach Amaranth, A Threatened Beach Dependent Plant Species
The USGS evaluated the habitat preferences of seabeach amaranth to better understand factors contributing to the species’ significant decline at…
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Shifting Practices of Dam Management and Dam Removal in a Changing World
The era of large dam construction, which peaked in the U.S. six decades ago, is now giving way to an…
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Volcano Watch — Fostering Prepared Youths on the Natural Hazards of Backyard Volcanoes
During volcanic crises, the USGS Hawaiian Volcano Observatory (HVO) plays a pivotal role, sharing information on activity and associated hazards…
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