Seismic Waves
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Earth’s Inner Core Might Be Slowing Down and Changing Shape, New Study Reveals
Research suggests Earth’s inner core, a metal sphere within the molten outer core, is slowing its spin and reshaping. Seismic wave analyses from earthquakes reveal discrepancies indicating deformation on the core’s surface or changes in rotation. John Vidale, a geophysicist from the University of Southern California, presented these findings, s...
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Scientists Identify Seismic Trigger Before 2022 Tonga Eruption; Insight Could Improve Tsunami Warnings
A seismic wave recorded 15 minutes before the massive 2022 Tonga eruption could help scientists improve early-warning systems for remote oceanic volcanoes and mitigate tsunami risks. Researchers found that a rupture beneath the volcano’s caldera allowed seawater to mix with magma, triggering the eruption. This discovery may provide critical lead-...
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Scientists Unveil Doughnut-Shaped Structure Hidden In Earth's Outer Core
By analyzing seismic waves generated by large earthquakes, geophysicists identified a region where these waves slow down as they pass through the outer core.
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Study Reveals Ultra-Low Velocity Zones May Be More Common in Earth's Mantle Than Previously Thought
A new study published in AGU Advances has unveiled intriguing findings about ultra-low velocity zones (ULVZs) in Earth's mantle, suggesting these mysterious features might be more widespread than previously thought.ULVZs, which are known to dramatically slow seismic waves by up to 50%, have long been associated with volcanic hotspots such as Hawaii...
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Study Says Earth's Inner Core Rotating Slower Than Surface
New research published in the journal Nature Geoscience analysed seismic waves from repeating earthquakes over the last six decades.
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NASA's InSight Mars Lander Records Vibrations of Space Rocks' Impact on Mars Surface: All Details
NASA announced on Monday that its InSight Mars lander had detected space rocks as they impacted the surface of the Red Planet. The robotic InSight lander tracked one space rock landing in 2020 and the other three in 2021, and all four were relatively modest in size, according to the US space agency. Researchers expect to find more data from the lan...
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Now, You Can See, Listen And Feel Earthquakes
You can now eavesdrop on some of the world's largest earthquakes from deep inside the Earth, thanks to a new project that lets you see, hear and feel seismic waves created by massive temblors.
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Earth's Inner Core Has an Inner Core of Its Own: Study
Looking into the world's "deepest mystery" with the help of seismic waves, researchers have found that the Earth's inner core has an inner core of its own, which has surprising properties that could reveal information about our planet.
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In the hunt for invisibility, other benefits seen
A new way of assembling things, called metamaterials, may in the not too distant future help to protect a building from earthquakes by bending seismic waves around it.
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7.3 magnitude earthquake off Antarctica, no injuries
A powerful 7.3-magnitude earthquake struck off the coast of Antarctica on Monday, generating large waves but causing no injuries, seismic experts at Argentina's Orcadas base in Antarctica said.
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Earth’s Inner Core Might Be Slowing Down and Changing Shape, New Study Reveals
Research suggests Earth’s inner core, a metal sphere within the molten outer core, is slowing its spin and reshaping. Seismic wave analyses from earthquakes reveal discrepancies indicating deformation on the core’s surface or changes in rotation. John Vidale, a geophysicist from the University of Southern California, presented these findings, s...
-
Scientists Identify Seismic Trigger Before 2022 Tonga Eruption; Insight Could Improve Tsunami Warnings
A seismic wave recorded 15 minutes before the massive 2022 Tonga eruption could help scientists improve early-warning systems for remote oceanic volcanoes and mitigate tsunami risks. Researchers found that a rupture beneath the volcano’s caldera allowed seawater to mix with magma, triggering the eruption. This discovery may provide critical lead-...
-
Scientists Unveil Doughnut-Shaped Structure Hidden In Earth's Outer Core
By analyzing seismic waves generated by large earthquakes, geophysicists identified a region where these waves slow down as they pass through the outer core.
-
Study Reveals Ultra-Low Velocity Zones May Be More Common in Earth's Mantle Than Previously Thought
A new study published in AGU Advances has unveiled intriguing findings about ultra-low velocity zones (ULVZs) in Earth's mantle, suggesting these mysterious features might be more widespread than previously thought.ULVZs, which are known to dramatically slow seismic waves by up to 50%, have long been associated with volcanic hotspots such as Hawaii...
-
Study Says Earth's Inner Core Rotating Slower Than Surface
New research published in the journal Nature Geoscience analysed seismic waves from repeating earthquakes over the last six decades.
-
NASA's InSight Mars Lander Records Vibrations of Space Rocks' Impact on Mars Surface: All Details
NASA announced on Monday that its InSight Mars lander had detected space rocks as they impacted the surface of the Red Planet. The robotic InSight lander tracked one space rock landing in 2020 and the other three in 2021, and all four were relatively modest in size, according to the US space agency. Researchers expect to find more data from the lan...
-
Now, You Can See, Listen And Feel Earthquakes
You can now eavesdrop on some of the world's largest earthquakes from deep inside the Earth, thanks to a new project that lets you see, hear and feel seismic waves created by massive temblors.
-
Earth's Inner Core Has an Inner Core of Its Own: Study
Looking into the world's "deepest mystery" with the help of seismic waves, researchers have found that the Earth's inner core has an inner core of its own, which has surprising properties that could reveal information about our planet.
-
In the hunt for invisibility, other benefits seen
A new way of assembling things, called metamaterials, may in the not too distant future help to protect a building from earthquakes by bending seismic waves around it.
-
7.3 magnitude earthquake off Antarctica, no injuries
A powerful 7.3-magnitude earthquake struck off the coast of Antarctica on Monday, generating large waves but causing no injuries, seismic experts at Argentina's Orcadas base in Antarctica said.
