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Earth and Planetary Science Letters
Earth and Planetary Science Letters, also known as EPSL, is a peer-reviewed Elsevier journal founded in 1966 that publishes short, high-impact articles on Earth and planetary sciences.
Earth Hour
Earth Hour is an annual WWF campaign in which households and landmarks switch off non-essential lights for one hour on a Saturday in March to show concern about climate change.
Earth science
Earth science, also called geoscience, is the study of the Earth, its solid interior, oceans, atmosphere, and life, covering geology, meteorology, oceanography, and astronomy, unified by plate tectonics.
Earth tide
The Earth tide, or solid Earth tide, is the elastic deformation of the solid Earth, up to about 10 cm, caused by the gravity of the Moon and Sun.
Earth's crust
Earth's crust, the outermost solid shell of the Earth, accounts for about 1 percent of Earth's mass and is divided into thinner oceanic and thicker continental types.
Earth's energy budget
Earth's energy budget, also called Earth's energy balance, is the accounting of solar energy entering Earth and radiation leaving it, measured in watts per square meter.
Earth's inner core
Earth's inner core is the solid, centralmost sphere of the planet, made mostly of an iron-nickel alloy, bounded by the liquid outer core at about 1,221 km.
Earth's mantle
Earth's mantle is the thick, mostly solid rock layer between the crust and the core, making up most of Earth's mass and driving plate tectonics and volcanism.
Earth's outer core
Earth's outer core is the liquid iron-nickel alloy shell surrounding the solid inner core, between about 2,890 and 5,150 km deep, whose churning metal generates Earth's magnetic field.
EarthCARE
EarthCARE (Earth Cloud Aerosol and Radiation Explorer), nicknamed Hakuryu, is a joint ESA-JAXA satellite launched in 2024 to measure the vertical structure of clouds and aerosols.
Earthflow
An earthflow is a type of landslide in which fine-grained silt and clay move downslope as a viscous flowing mass, slower and drier than a mudflow.
Earthquake
An earthquake, also called an earth tremor, is a shaking of the ground caused by a sudden slip on a fault, releasing energy as seismic waves through the crust.
Earthquake early warning
Earthquake early warning (EEW) detects an earthquake that has already begun and sends alerts giving people seconds to tens of seconds to take protective action before strong shaking arrives.
Earthquake early warning system
An earthquake early warning (EEW) system detects the first, fast seismic waves of an earthquake in progress, alerting people seconds before slower, damaging shaking arrives.
Earthquake light
Earthquake light, also called earthquake lightning, is an atmospheric luminous phenomenon, seen as sheet lightning, balls of light, or glows, reported before, during, and after earthquakes since antiquity.
Earthquake location
Earthquake location is the seismological procedure that determines where and when an earthquake started, solving for the hypocenter's coordinates and origin time from arrival times recorded at many stations.
Earthquake prediction
Earthquake prediction is the claim that the date, location, and magnitude of a future earthquake can be specified in advance, which the USGS says is not yet possible.
Earthquake swarm
An earthquake swarm, also called a seismic swarm, is a sequence of earthquakes clustered in a small area with no dominant mainshock, often tied to volcanic or geothermal activity.
Earthquake swarms
An earthquake swarm is a sequence of many similar, mostly small earthquakes clustered in space and time without a mainshock, often driven by fluids or magma.
Earthquake tomography
Earthquake tomography, or local earthquake tomography, is a seismological imaging method that uses earthquake wave travel times to map three-dimensional velocity structure of Earth's interior.
Earthquake zones of India
The earthquake zones of India are four seismic hazard zones, II to V, defined by the Bureau of Indian Standards, with Zone V the most severe.
East African Rift
The East African Rift, also called the Great African Rift Valley, is an active continental rift zone where the Nubian and Somalian plates pull apart.
East Asian monsoon
The East Asian monsoon is the seasonally reversing wind system over eastern China, Korea, Japan, and the adjacent western North Pacific, bringing wet summers and cold, dry winters.
East Asian rainy season
The East Asian rainy season, called Meiyu in China, Baiu in Japan, and Changma in Korea, is a quasi-stationary frontal system bringing heavy rain in June and July.
East Asian winter monsoon
The East Asian winter monsoon (EAWM) drives cold, dry air from the Siberian high toward the western Pacific, bringing cold surges, snowfall, and freezing rain to East Asia.
East Atlantic pattern
The East Atlantic pattern is a North Atlantic atmospheric teleconnection, the second leading mode of low-frequency variability in all months, and a key indicator of weather regimes affecting Europe.
East Atlantic/West Russia pattern
The East Atlantic/West Russia (EAWR) pattern is a prominent Northern Hemisphere teleconnection pattern, identified in 1987, that links weather over the North Atlantic and Europe to conditions across Russia and Asia.
East Australian Current
The East Australian Current is a major ocean current flowing south along Australia's east coast from the Coral Sea, known for large eddies and warming the Tasman Sea.
East Greenland Ice-core Project
The East Greenland Ice-core Project, known as EastGRIP, drilled a 2,670-meter ice core through the Northeast Greenland Ice Stream, the first deep core through a fast-flowing ice stream.
East Troublesome Fire
The East Troublesome Fire was a 2020 wildfire that began near Kremmling, Colorado, and burned 193,812 acres across Grand County and Rocky Mountain National Park, the second-largest fire in Colorado's recorded history.