Épisodes

  • "Kilauea Volcano Simmers, Rainier Shakes, and Yellowstone Stays Active: Geologic Hotspots Across the US"

    "Kilauea Volcano Simmers, Rainier Shakes, and Yellowstone Stays Active: Geologic Hotspots Across the US"
    Jul 12 2025
    Kilauea Volcano in Hawaii remains a focal point for geological monitoring as the United States Geological Survey reports that Episode 28 of the ongoing Halemaʻumaʻu eruption ended on July 9, 2025. Summit inflation resumed immediately after the eruption, indicating increased pressure beneath the volcano’s summit and suggesting another eruptive episode may begin between July 16 and 19. Low-level degassing and seismic tremor continue, with persistent hazards from volcanic gas emissions and windblown volcanic glass fragments, locally known as Pele’s hair. There is currently no significant activity observed along the East or Southwest Rift Zones of Kilauea, but monitoring remains heightened given the ongoing changes to summit dynamics according to USGS updates.

    In the Cascade Range, Mount Rainier in Washington State is experiencing a notable seismic swarm that began early on July 8, 2025. According to the US Geological Survey and supported by visualizations from the Cascade Volcano Observatory, several small magnitude earthquakes have occurred beneath the volcano between July 8 and July 12. While these seismic events are being closely watched, the volcano alert level remains at normal and no increase in volcanic activity has been observed on the surface. These swarms are not uncommon for the area, but their occurrence always warrants careful tracking due to Mount Rainier’s history and proximity to populated regions.

    Yellowstone National Park also remains a site of geological interest. The Yellowstone Caldera continues to show activity at background levels, with USGS reports detailing that 60 earthquakes were recorded in June, the largest being magnitude 2 point 7. Deformation measurements show the annual summer pause in long-term caldera subsidence started in June. Additionally, minor eruptions at Black Diamond Pool in Biscuit Basin and possible future activity at Steamboat Geyser are under observation, with two major geyser eruptions having occurred so far this year.

    Beyond recent volcanic and seismic activity, geology-themed public events are taking place across the country. The Ozark Natural Science Center in Arkansas hosted a geology exploration hike along Bear Hollow Creek on July 5. Participants searched for fossils and learned about the ancient geologic forces shaping the Ozarks. Upcoming, the Bryce Canyon Geology Festival in Utah is set for July 18 and 19, highlighting the park’s unique geology through guided hikes, interactive exhibits, and expert presentations.

    On the global stage, the International Union of Geological Sciences notes several major scientific conferences this month, including the International Astrobiology Conference in Iceland and the International Congress on Earth and Geological Sciences in Paris, both drawing attention from geoscientists worldwide as they discuss new research and emerging patterns in planetary and earth sciences.

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    3 min
  • "Seismic Shifts and Geologic Discoveries: A Dynamic Landscape Across the United States"

    "Seismic Shifts and Geologic Discoveries: A Dynamic Landscape Across the United States"
    Jul 9 2025
    Recent geology news across the United States reveals a landscape both dynamic and educational, underscored by fresh seismic activity, public events, and new scientific assessments. In the Pacific Northwest, monitoring stations detected a notable earthquake swarm beneath Mount Rainier in Washington beginning on July eighth. According to the United States Geological Survey, these were small-magnitude quakes, but their clustered occurrence has drawn attention to the ongoing seismic processes beneath one of the country’s most iconic volcanoes. Although current risk remains low, the activity serves as a reminder of the region’s geologic volatility and the importance of continued monitoring.

    Further south, Yellowstone remains under careful observation. The Yellowstone Volcano Observatory reported that caldera activity is at normal background levels. In June, sixty minor earthquakes were located in the region, with the largest registering a magnitude of two point seven. Ground deformation data suggest the annual seasonal pause in caldera subsidence began last month. Notably, there was another small hydrothermal eruption at Black Diamond Pool in Biscuit Basin in mid-June, captured by a recently installed webcam. Such eruptions, while minor, provide valuable insight into the complex hydrothermal dynamics of this supervolcano. Steamboat Geyser continues its erratic activity, with two major eruptions already recorded in this calendar year, raising interest about a possible larger event in the coming weeks.

    Elsewhere in the United States, geologic events are sparking curiosity and community engagement. In the Ozarks of Arkansas, recent exploration events have combined science education with hands-on experiences. A July hike at Bear Hollow Creek led participants through fossil hunting and interactive lessons on how ancient seas shaped today’s landscapes. These outreach activities are nurturing a new appreciation for the region’s geologic past and connecting people of all ages with the tangible evidence of plate tectonics and mineral cycles.

    Meanwhile, scientists from the United States Geological Survey have released a new assessment of the Mowry Composite Total Petroleum System, spanning southwestern Wyoming, northwestern Colorado, and parts of Utah. This assessment focuses on sedimentary deposits from a prehistoric ocean, advancing our understanding of the area’s fossil fuel potential and its geologic history.

    Looking globally, major geological conferences in Europe, such as the International Congress on Earth and Geological Sciences in Paris later this month and recent volcanic research meetings in Switzerland, are fostering international collaboration and knowledge sharing. These events reflect the broader trend of integrating new technology and cross-disciplinary data to interpret our planet’s past and prepare for future hazards. Overall, recent geology news in the United States highlights a blend of scientific vigilance, educational outreach, and global cooperation that drives both public understanding and ongoing research.

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    3 min
  • Volcanic Insights and Geologic Engagement Across the United States

    Volcanic Insights and Geologic Engagement Across the United States
    Jul 7 2025
    Over the past week, geology in the United States has been marked by both scientific observation and public engagement. In Yellowstone National Park, the United States Geological Survey reported that volcanic and hydrothermal activity remains within normal levels. June saw sixty minor earthquakes, the largest registering magnitude two point seven, and ongoing monitoring of land subsidence in the caldera. The agency highlighted small eruptions from the Black Diamond Pool in Biscuit Basin, with their recently installed webcam capturing a second event in June. Steamboat Geyser continues to show minor eruptions and is being closely watched for a potential larger eruption, with two major events already recorded this year, signaling sustained hydrothermal activity in the area according to the US Geological Survey.

    Meanwhile, in Hawaii, geological activity has kept scientists on alert. The Hawaiian Volcano Observatory confirmed ongoing updates and close observation of Kilauea, one of the world’s most active volcanoes. Recently, Kilauea experienced another episode of lava fountaining at the summit, continuing a year-long period with frequent short-lived eruptions. The National Park Service also announced July helicopter operations over Mauna Loa and the Kahuku Unit, in part to support geological surveys, native species monitoring, and control of invasive plants. These activities are vital for understanding the evolving landscape and maintaining ecological balance in Hawaii Volcanoes National Park.

    Across the continental United States, public interest in geology is also on the rise. The Ozark region hosted a hands-on geology event in Bear Hollow Creek, Arkansas, where participants searched for fossils and learned about regional geological history. This educational focus connects people directly with the land’s ancient origins and highlights the importance of local geology in understanding Earth’s broader history.

    Looking to the southwest, Bryce Canyon National Park is preparing for its annual Geology Festival, set for July eighteenth and nineteenth. The event traditionally offers educational programs, guided walks, and opportunities for visitors to interact with professional geologists, reinforcing the region’s commitment to geoscience education and awareness.

    Internationally, geologists are convening for global conferences such as the recent European Current Research on Fluid and Melt Inclusions in Italy and the upcoming International Congress on Earth and Geological Sciences in Paris. These gatherings underscore an ongoing global effort to share the latest findings and methods, advancing the science of geology worldwide.

    From volcanic observations in the nation’s iconic parks to public outreach and international collaboration, the latest geology news reflects a dynamic field where scientific vigilance and community participation go hand in hand, helping society better understand and adapt to the ever-changing Earth.

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    3 min
  • "Volcanic Monitoring, Public Engagement, and Global Collaboration: The Latest in U.S. Geology News"

    "Volcanic Monitoring, Public Engagement, and Global Collaboration: The Latest in U.S. Geology News"
    Jul 5 2025
    In the past week, geology news in the United States has focused on active volcano monitoring, public engagement with geological history, and continued research into critical mineral and energy resources. The U.S. Geological Survey reported that activity at Kilauea volcano in Hawaii is closely watched after the end of its most recent eruptive episode on June 29. While lava fountaining has paused, summit inflation and persistent low-level seismic tremor suggest another eruption could occur between July 7 and 11, with July 7 to 9 being the most likely. Overnight webcam images continue to capture incandescent glow and intermittent minor lava spattering at the summit’s north vent. The USGS has stated that this window is subject to change based on ongoing summit inflation and seismic data, reflecting the dynamic nature of volcanic monitoring in Hawaii.

    Meanwhile, the Yellowstone Volcano Observatory released its monthly update noting that volcanic activity in Yellowstone remains at background levels. Sixty earthquakes were recorded in June, the largest reaching magnitude 2 point 7. Minor hydrothermal eruptions continue to be observed, with a small eruption from Black Diamond Pool in Biscuit Basin captured by webcam on June 12. The report also indicates the beginning of the annual summer pause in long-term caldera subsidence, a regular pattern of seasonal deformation. Additionally, the Steamboat Geyser has had minor eruptions, potentially signaling a major eruption in the near future, following two major eruptions earlier this year.

    Geology is also engaging the public, as seen in the Ozark Exploration event held on July 5 in Huntsville, Arkansas. Attendees hiked Bear Hollow Creek, searching for fossils and learning about how geologic forces shaped the Ozarks landscape. Such educational events highlight the value of geology in understanding the ancient history beneath our feet and encourage hands-on exploration.

    Beyond the United States, the international geoscience community gathered for major conferences like the European Current Research on Fluid and Melt Inclusions in Turin, Italy, and the International Congress on Earth and Geological Sciences scheduled for later in July in Paris, France. These events foster global collaboration on topics ranging from volcanic activity to sustainable mineral resource management.

    The recent focus in U.S. geology highlights a pattern of constant monitoring of volcanic and seismic activity, expanded geological education for the public, and international cooperation on research. These efforts contribute to both hazard preparedness and a broader appreciation of Earth’s dynamic systems, illustrating geology’s role from local landscapes to global scientific discussions.
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    3 min
  • Yellowstone Supervolcano Remains Stable, Geologists Uncover Mineral Wealth and Fossils Across the U.S.

    Yellowstone Supervolcano Remains Stable, Geologists Uncover Mineral Wealth and Fossils Across the U.S.
    Jul 2 2025
    Geology has been drawing significant public and scientific attention across the United States in recent days. In Yellowstone National Park, the U.S. Geological Survey reports that the famous caldera remains at normal background activity levels, with the most recent data showing 119 earthquakes recorded in May. While most of these were minor, the largest reached magnitude two point seven. Importantly, the caldera has shown a small amount of subsidence since October, supporting scientists’ views that there is no imminent threat from the supervolcano. On May thirty-first, a small eruption was observed at Black Diamond Pool in Biscuit Basin, a hydrothermal feature, and this was carefully documented by a new webcam system. The report also notes that Steamboat Geyser, one of the world’s tallest active geysers, has seen little activity since its last eruption on April fourteenth, suggesting a possible pause of several weeks before its next significant event.

    Elsewhere in the United States, the Grand Prismatic Spring, also located in Yellowstone, remains a center of research. The July update from the Yellowstone Volcano Observatory highlights the spring’s unique colors, which are produced by microbial mats and varying mineral content. The area continues to be one of the most studied geothermal regions in the country, notable for its ongoing hydrothermal and seismic activity.

    On the mineral resources front, the U.S. Geological Survey has released new assessments estimating the oil and gas potential in several U.S. basins. A recent evaluation found that the Niobrara Formation, which spans southwest Wyoming and northwest Colorado, could hold up to seven hundred three million barrels of oil and five point eight trillion cubic feet of gas. This follows broader USGS efforts to map mineral resources and analyze critical supply chains, information that is increasingly important to national economic security.

    Educational and outreach events remain popular. The Ozark Natural Science Center is hosting a hands-on geology adventure in the Bear Hollow Creek area of Arkansas on July fifth, inviting participants to search for fossils and learn about the ancient forces that shaped the region’s rugged landscape. In Utah, Bryce Canyon National Park is gearing up for its annual geology festival, which attracts both experts and families interested in the park’s spectacular rock formations and geologic history.

    Internationally, all eyes are on Paris later this month as researchers gather for the Fourth International Congress on Earth and Geological Sciences. This summit will address issues ranging from climate impacts on geological records to sustainable resource management, reflecting the increasingly global and interdisciplinary nature of geology research today.
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    3 min
  • Seismic Activity, Volcanic Eruptions, and Resource Assessments Dominate Recent Geological Developments Across the United States

    Seismic Activity, Volcanic Eruptions, and Resource Assessments Dominate Recent Geological Developments Across the United States
    Jun 28 2025
    Recent geology news in the United States highlights several significant developments and observations related to earthquakes, volcanic activity, landslides, and resource assessments. At Yellowstone National Park, the caldera continues to show background levels of volcanic activity. In May 2025, there were 119 located earthquakes, the largest measuring magnitude 2.7, and deformation measurements indicate a slight caldera subsidence since October of last year. Notably, on May 31, a small hydrothermal explosion occurred at Black Diamond Pool in Biscuit Basin, captured by a newly installed webcam. Meanwhile, activity at the Steamboat Geyser, known for its powerful eruptions, has slowed since its last eruption in mid-April, suggesting a potentially longer wait for its next major event (U.S. Geological Survey, June 2025).

    In Southern California, a magnitude 4.7 earthquake rattled the area, and a 4.4 magnitude quake was also felt in the Los Angeles region, underscoring the ongoing seismic hazards in this tectonically active zone. Additionally, an earthquake occurred near the U.S.-Canada border northwest of Seattle, Washington, indicating that seismic activity continues to be closely monitored across the western United States (United States Geological Survey reports).

    Landslides triggered by Hurricane Helene in the U.S. have been mapped extensively. More than 600 landslides occurred in a short period, challenging existing understanding of landslide hazards and response strategies. This historic storm caused a rapid succession of landslides, prompting ongoing research into regional ground failure and mitigation approaches to better protect populations and infrastructure (U.S. Geological Survey reports).

    Regarding natural resources, the U.S. Geological Survey released updated assessments estimating 29.4 billion barrels of oil and 391.6 trillion cubic feet of natural gas beneath U.S. public lands, showing significant increases from previous figures. Furthermore, in the Niobrara Formation across southwestern Wyoming and northwestern Colorado, assessments suggest there are 703 million barrels of oil and 5.8 trillion cubic feet of gas yet to be discovered, highlighting continued interest in hydrocarbon potential in the region (U.S. Geological Survey releases).

    In other geology-related news, rising sea levels combined with the risk of major earthquakes in the Pacific Northwest are expected to increase flood risks, potentially affecting thousands of residents and properties from northern California to Washington state. Scientists warn this combined hazard underscores the need for enhanced preparedness and hazard mitigation in those coastal and riverine communities (ScienceDaily, June 2025).

    Overall, recent events from earthquake swarms and volcanic activity to resource studies and landslide mapping reveal a dynamic geological environment in the United States, driving ongoing research and hazard awareness across multiple disciplines.
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    3 min
  • Volcanic Eruptions, Seismic Risks, and Evolving Water Cycles: Geological Insights Across the U.S.

    Volcanic Eruptions, Seismic Risks, and Evolving Water Cycles: Geological Insights Across the U.S.
    Jun 25 2025
    Geological activity across the United States has been dynamic this past week, with several notable updates from both volcanic and seismic research communities. According to the United States Geological Survey, volcanic activity at Hawaii’s Kilauea volcano remains closely monitored. As of mid-June, the Halema‘uma‘u eruption is paused, though summit inflation continues and low-level seismic tremor has persisted. The USGS notes that a new fountaining phase, part of Episode 26, could begin imminently depending on summit inflation rates. Overnight glow and intermittent spatter have been reported at the vents, signaling the possibility of renewed eruptive activity in the coming days. This ongoing situation underscores the need for continued vigilance around Kilauea, a volcano with a complex and active history.

    Turning to the mainland, the USGS also highlighted recent developments at Yellowstone Caldera. In May, 119 earthquakes were reported, with the largest reaching magnitude 2 point 7. While these events remain well below hazardous levels, researchers continue to closely watch hydrothermal features. Notably, on May 31, Black Diamond Pool in Biscuit Basin experienced a small eruption, an event captured on video by a newly installed webcam. This marks the first recorded eruption since a significant hydrothermal explosion in July 2024, offering new insights into the region’s geothermal dynamics and the utility of remote monitoring technologies.

    In Utah’s Wasatch Fault region, recent research detailed in ScienceDaily has examined the structural vulnerabilities that contribute to earthquake risk. By analyzing fault rock textures and conducting laboratory experiments, scientists have uncovered why this fault is particularly susceptible to seismic activity. These findings are especially relevant for the densely populated Wasatch Front, where earthquake preparedness continues to be a high priority.

    Elsewhere in the western United States, hydrologists have determined that much of the region’s spring runoff is older than previously thought. A new study shows that streamflow out of mountain ranges is composed of snowmelt that has spent an average of five years underground before emerging. This challenges traditional understandings of seasonal water cycles and has significant implications for water resource management in the face of prolonged droughts.

    On the global stage, geologists are preparing for upcoming international conferences such as the European Current Research on Fluid and Melt Inclusions in Turin, Italy, and the International Congress of Applied Geology in Cordoba, Argentina, where new research and collaborative efforts will be discussed. These gatherings reflect ongoing commitments to advance geological understanding worldwide.

    Overall, recent developments highlight the interplay between natural processes and human observation, with advances in technology and research refining our knowledge of volcanic hazards, seismic risks, and critical water resources within the United States and beyond.
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    3 min
  • "Discover Geology's New Frontiers: Niobrara Formation Assessment, Landsat 7 Retirement, and Geoscience Innovations Worldwide"

    "Discover Geology's New Frontiers: Niobrara Formation Assessment, Landsat 7 Retirement, and Geoscience Innovations Worldwide"
    Jun 21 2025
    In the past week, several significant developments have shaped geology news, particularly in the United States. The U.S. Geological Survey announced a major new resource assessment for the Niobrara Formation across southwestern Wyoming and northwestern Colorado, estimating approximately 703 million barrels of oil and 5.8 trillion cubic feet of gas as yet undiscovered. This assessment highlights ongoing efforts to better understand and manage the nation’s vital oil and gas reserves, which are increasingly important for both economic development and energy strategy. Additionally, the USGS recently concluded operations for the Landsat 7 satellite, which was launched in 1999 and has contributed 26 years of continuous earth observation. Over its lifespan, Landsat 7 provided critical data for tracking changes in land use, monitoring agricultural health, and managing natural resources, establishing itself as a cornerstone of American remote sensing. The satellite’s retirement marks the end of an era, but its data legacy is expected to benefit scientific research and land management for decades to come.

    Also notable is the Geological Society of America’s preparation for the GSA Connects 2025 conference, which will take place in San Antonio, Texas. This event is expected to draw leading geoscientists from around the world to address pressing questions related to the planet’s dynamic systems, resource innovation, and planetary geology. Themes for this year’s conference include sustainable solutions to global environmental challenges and interdisciplinary research, reflecting a broader trend in geology toward addressing complex, interconnected issues. Early abstract submissions are encouraged to facilitate participation from international researchers, signaling a more inclusive and globally connected scientific community.

    Recent scientific findings have shed light on seismic risks in the western United States, particularly along Utah’s Wasatch Fault. According to ScienceDaily, research has focused on examining rock samples and fault textures to better understand why this region is especially vulnerable to earthquakes. Meanwhile, hydrologists have discovered that the majority of spring runoff in the western U.S. mountains originates from snowmelt that has been traveling underground for an average of five years, challenging previous assumptions about seasonal water flow and resource planning. There is also growing concern over flood risks in the Pacific Northwest, where a combination of powerful earthquakes and rising sea levels could substantially increase hazards for communities and infrastructure in northern California and beyond.

    Internationally, there have been notable volcanic eruptions this month, including in Indonesia’s Lowatobi and Italy’s Mount Etna. Both eruptions released significant ash plumes and pyroclastic deposits, which have been closely monitored and compared with recent volcanic activity in Hawaii. These events underscore the diverse tectonic and volcanic processes occurring worldwide and the continuing importance of global earth observation networks.

    As summer begins, the field of geology continues to blend cutting-edge technology with traditional fieldwork, integrating satellite-based monitoring, resource assessment, and conference-driven collaboration to address ongoing and emerging challenges both within the United States and across the globe.
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    4 min