Reference Terms
from Wikipedia, the free encyclopedia
Moment magnitude scale
The moment magnitude scale was introduced in 1979 by Tom Hanks and Hiroo Kanamori as a successor to the Richter scale and is used by seismologists to compare the energy released by earthquakes.
Note: The above text is excerpted from the Wikipedia article "Moment magnitude scale", which has been released under the GNU Free Documentation License.
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Earth & Climate News
September 11, 2024
Sep. 10, 2024 — Methane concentrations in Earth's atmosphere increased at record speed over the past five years. At least two-thirds of annual methane emissions now come from human activities, including fossil fuel use, agriculture, and landfills and other ...
Sep. 6, 2024 — Bacteria use their internal 24-hour clocks to anticipate the arrival of new seasons, according to research carried out with the assistance of an 'ice bucket ...
Aug. 29, 2024 — Chemists have developed a catalytic process that turns the largest component of today's plastic waste stream, polyolefin plastic bags and bottles, into gases -- propylene and isobutylene -- that are ...
Sep. 4, 2024 — In creating a pair of new robots, researchers cultivated an unlikely component, one found on the forest floor: fungal mycelia. By harnessing mycelia's innate electrical signals, the researchers discovered a new way of controlling 'biohybrid' robots ...
Latest Headlines
updated 12:56 pm ET
Sep. 11, 2024 — Landslides are a common hazard in the US. In fact, nearly 44% of the country could experience one, potentially catastrophically. Our new national landslide susceptibility map shows where they're most ...
Sep. 11, 2024 — As the world tries to mitigate agriculture's effect on the environment, much of the story can be found in the soils, which stores and cycles nutrient elements of carbon, nitrogen, and phosphorus. ...
Sep. 11, 2024 — Scientists found that the strength of the Florida Current, the beginning of the Gulf Stream system and a key component of the global Atlantic Meridional Overturning Circulation, or AMOC, has remained ...
Sep. 10, 2024 — A research team developed a microbial strain that efficiently produces aromatic polyester using systems metabolic ...
Sep. 11, 2024 — Water polluted with heavy metals can pose a threat when consumed by humans and aquatic life. Sugar-derived polymers from plants remove these metals but often require other substances to adjust their ...
Sep. 11, 2024 — Analysis of air samples taken at altitudes of up to 3,000 meters above Japan has revealed the presence of a vast range of viable bacteria and fungi transported by air masses originating more than ...
Sep. 10, 2024 — Summer storms are generally more frequent, intense and concentrated over cities than over rural areas, according to new, detailed observations of eight cities and their surroundings. The results ...
Sep. 10, 2024 — New research has revealed how underwater noise produced by humans may help explain why southern resident orca populations have not recovered from ...
Sep. 10, 2024 — Researchers have introduced a novel method for converting the greenhouse gas carbon dioxide (CO2) into ethanol, a sustainable fuel. This significant advancement could pave the way for more ...
Sep. 10, 2024 — Historically, Lake Okeechobee was thought to be impaired only by phosphorus, focusing efforts on reducing agricultural runoff. However, new comprehensive sampling across the Lake Okeechobee Waterway ...