Tremor is a rhythmic, involuntary, oscillatory movement of a body part resulting from alternating or synchronous contractions of reciprocally innervated muscles, typically around a joint. Phenomenologically, tremors are characterized by their frequency, amplitude, distribution, and activation condition (rest, postural, kinetic, or intention). They arise from pathological or physiological alterations in central motor networks, particularly involving cerebello-thalamo-cortical and basal ganglia circuits, and can be modulated by peripheral feedback. Tremor is a core motor phenomenon in various neurological disorders, where its spatiotemporal features are crucial for differential characterization, quantification, and pathophysiological investigation.
Thousands of small earthquakes, detected for the first time by a machine-learning process, reveal the distinct, razor-sharp edge of the Yakutat microplate as it subducts beneath the North American plate.
Earth Sciences
Jun 7, 2026
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21
Reports of an explosion from people across New England on Saturday afternoon sent police agencies and others scrambling to understand what caused a double boom that shook buildings in Massachusetts and Rhode Island.
Space Exploration
May 31, 2026
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29
The Great Pyramid of Giza in Egypt has survived more than 4,500 years. Earthquakes have repeatedly shaken the region, including the magnitude 5.8 Cairo earthquake in 1992, which dislodged some of the pyramid's outer casing ...
Earth Sciences
May 22, 2026
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29
A 5.8 magnitude earthquake struck the Pacific region of southern Peru late Tuesday, injuring 27 people and damaging buildings, officials said. No deaths were reported.
Environment
May 20, 2026
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8
In subduction zones, the sites of the world's largest earthquakes, tectonic activity may generate a "pump" that transports long-buried subseafloor microbes back toward the seafloor, according to research presented at the ...
Earth Sciences
Apr 18, 2026
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80
A shallow 4.9-magitude earthquake struck eastern Indonesia overnight, damaging dozens of homes and injuring multiple people, an official said Thursday.
Environment
Apr 9, 2026
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10
The extraction of gas and oil by fracking—large-scale fracturing of underground rocks by injecting water, sand and additives—is generating growing concern in Argentine Patagonia. Neuquén province—home to the country's largest ...
Earth Sciences
Feb 23, 2026
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18
An ongoing string of more than a dozen earthquakes in less than 90 minutes early Monday ended what had been some recent calm from recent weeks of shaking ground in the region, according to the U.S. Geological Survey.
Earth Sciences
Feb 2, 2026
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31
A strong earthquake shook western Japan on Tuesday, but no major damage or life-threatening injuries were reported.
Environment
Jan 6, 2026
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25
A swarm of at least a dozen earthquakes reaching up to magnitude 3.9 rattled San Ramon near San Francisco, the U.S. Geological Survey reports.
Earth Sciences
Dec 22, 2025
0
32
