All articles tagged with #geophysics
The Royal Astronomical Society announced its 2026 award winners, including Professor Shrinivas Kulkarni for astronomy and Professor Andrew Jackson for geophysics, recognizing groundbreaking contributions in their fields, along with other medals honoring achievements in astrophysics, instrumentation, outreach, and history of astronomy.
The Axial Seamount off Oregon, a well-instrumented submarine volcano, was initially predicted to erupt in 2025, but recent data suggests it may not erupt until 2026 due to slower inflation rates and low seismic activity, highlighting the challenges in accurately forecasting volcanic eruptions.
Bermuda's unique geological structure is explained by a 20-kilometer-thick, less dense mantle layer beneath it, which acts like a mantle plume, despite Bermuda lacking recent volcanic activity or typical plume features. This discovery challenges existing models of mantle plumes and suggests Bermuda is supported by an unusual mantle layer, possibly due to its geological history or composition.
Scientists analyzing data from NASA's GRACE satellites discovered evidence of a massive shift deep within the Earth's interior near the core-mantle boundary, possibly caused by changes in mantle minerals like perovskite, which may have influenced Earth's magnetic field and caused a geomagnetic jerk around 2007. They plan to use data from the follow-up GRACE-FO mission to further investigate these deep Earth processes.
Scientists have developed a new computer model demonstrating that Earth's magnetic field could have existed over a billion years ago when the core was entirely liquid, shedding light on the planet's magnetic history and its role in supporting life and modern technology.
Satellites have revealed mysterious changes near Earth's core, suggesting a transformation in deep underground rocks that may be causing the core to leak, providing new insights into Earth's internal structure and its effects on seismic activity and magnetic field.
A study using laboratory-created mini-earthquakes found that only about 10% of an earthquake's energy causes shaking, while the majority (68-98%) converts into heat, providing new insights into earthquake physics and potential improvements in hazard prediction.
Scientists have discovered massive, branching mantle plumes beneath Earth that have historically shaped and may continue to reshape the planet's continents, including the formation of volcanic hotspots and the potential for future continental reconfigurations over millions of years.
Scientists have discovered that Earth's core has slowed down and appears to have reversed its rotation relative to the crust, a fluctuation that occurs roughly every 70 years and may influence Earth's magnetic field and climate, though the effects are minimal for daily life.
A video of Myanmar's 7.7 magnitude earthquake provides the first direct visual evidence of pulse-like and curved fault slip, revealing new insights into earthquake mechanics and fault behavior, which could improve future seismic risk assessments.
A study reveals that human groundwater extraction has caused Earth's rotational axis to shift by 31.5 inches in less than two decades, impacting climate patterns and contributing to sea level rise, highlighting significant environmental consequences of water redistribution.
CCTV footage in Myanmar captured the first-ever real-time video of a strike-slip fault in action during a magnitude 7.7 earthquake, revealing the fault's rapid horizontal slip of 2.5 meters in 1.3 seconds, providing new insights into earthquake dynamics.
Earth experienced a shorter day on July 22, spinning about 1.34 milliseconds faster than usual, with scientists investigating potential causes like lunar gravitation or changes in Earth's core.
A groundbreaking video capturing the first-ever footage of an earthquake fault rupture reveals a previously unobserved curving crack, providing new insights into fault dynamics and stress patterns during major earthquakes, specifically a magnitude 7.7 quake near Thazi, Myanmar.
Scientists have studied Bolivia's Uturuncu volcano, which shows signs of activity despite being classified as extinct, revealing that such volcanoes can 'breathe' and potentially reawaken due to underground fluid movements. Using seismic tomography and satellite data, researchers found no imminent eruption threat but emphasized the importance of monitoring these restless volcanoes, especially as climate change may influence their activity. The study highlights how advanced imaging techniques can better predict volcanic behavior and improve safety measures.