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Seismic Data

All articles tagged with #seismic data

East Africa Rift Thins Fast, Foreshadowing a New Ocean
science29 days ago

East Africa Rift Thins Fast, Foreshadowing a New Ocean

New seismic data show the Turkana Rift in East Africa has thinned to about 13 km in places and is widening at roughly 4.7 mm/year, indicating advanced necking of the crust and weakening that could eventually lead to continental breakup and the formation of a new ocean—though this would occur over millions of years. The finding helps explain the region’s deep basins and rich fossil record, tying tectonic activity to the Turkana Basin’s unique paleoanthropological significance.

via BBC Wildlife Magazine|
#crust-thinning#east-africa#science
Scientists Discover Enormous Hole in Indian Ocean
science8 months ago

Scientists Discover Enormous Hole in Indian Ocean

Scientists have uncovered new insights into the Indian Ocean Geoid Low, the largest gravity hole on Earth, linking it to mantle processes such as sinking slabs and rising plumes originating from deep within Earth's mantle, which have evolved over millions of years and are influenced by interactions with the African hotspot and mantle structures like the LLSVP.

via Indian Defence Review|
#earths-interior#gravity-anomaly#indian-ocean-geoid-low
AI Reveals Hidden Earthquake Activity and Risks in Yellowstone
science11 months ago

AI Reveals Hidden Earthquake Activity and Risks in Yellowstone

Researchers have used AI and machine learning to identify ten times more earthquakes in Yellowstone from 2008 to 2022 than previously recorded, revealing over 86,000 seismic events and providing new insights into volcanic and seismic activity, especially earthquake swarms along immature faults, which can improve safety and energy development strategies.

via Gizmodo|
#artificial-intelligence#earthquakes#science
Hidden Mantle Plume Detected Beneath Oman Could Explain India's Movement
science1 year ago

Hidden Mantle Plume Detected Beneath Oman Could Explain India's Movement

Scientists have identified a 'ghost' mantle plume beneath Oman, a hot rock column with no surface volcanic activity, which could reshape understanding of Earth's internal heat flow and geological processes. The discovery, based on seismic data and computer modeling, suggests the existence of similar hidden plumes worldwide, potentially impacting models of Earth's thermal evolution.

via Yahoo|
#earths-core#ghost-plume#mantle-plume
Unveiling the North Sea's Hidden Glacial Landscapes
science1 year ago

Unveiling the North Sea's Hidden Glacial Landscapes

Researchers have discovered well-preserved glacial landforms buried beneath the North Sea, using seismic data to reveal features from about 1 million years ago. These findings, published in Science Advances, highlight how past ice sheets responded to climate changes during the Mid-Pleistocene Transition, offering insights into current climate change impacts. The study utilized 3D seismic technology, originally developed for oil and gas exploration, to map these ancient landscapes, which include features carved by ice sheets and ocean currents, reshaping our understanding of the North Sea's glacial history.

via Phys.org|
#climate-change#glacial-landforms#mid-pleistocene-transition
Earth's Inner Core Rotation Slows, Impacting Day Length
science2 years ago

Earth's Inner Core Rotation Slows, Impacting Day Length

Researchers from the University of Southern California have found that Earth's inner core has been slowing down since around 2010, altering the length of days by fractions of a second. This slowdown is attributed to convection within the liquid iron outer core and gravitational forces in the mantle. The findings, based on seismic data from earthquakes and nuclear tests, were published in the journal Nature.

via Space.com|
#earths-inner-core#gravitational-forces#rotation-slowdown