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A major earthquake measuring 7.4 hit Taiwan early Wednesday, killing 9 and injuring at least 1,000. A 7.4 earthquake is exponentially more destructive than the 4.8 quake that struck central New ...
Science Supercourse is a free online accessible educational resource currently encompassing more than 165,000 downloadable PowerPoint lectures covering four main areas of science; Public Health, Computer Engineering, Environment and Agriculture.
Moderately damaging earthquakes strike between New York and Wilmington, Delaware, about twice a century, the USGS said, and smaller earthquakes are felt in the region roughly every two to three years.
An earthquake is the shaking of the surface of Earth resulting from a sudden release of energy in the lithosphere that creates seismic waves. Earthquakes may also be referred to as quakes, tremors, or temblors. The word tremor is also used for non-earthquake seismic rumbling.
The magnitude for great earthquakes is often underestimated, at first. The standard teleseismic measure of the 'size' of an earthquake is the surface-wave magnitude, M s, which has to be derived by definition from the surface waves with 20 second period. A more reliable and more modern scale is that of the moment magnitude, M w.
In southern California about 6% of M≥3.0 earthquakes are "followed by an earthquake of larger magnitude within 5 days and 10 km." [12] In central Italy 9.5% of M≥3.0 earthquakes are followed by a larger event within 48 hours and 30 km. [13] While such statistics are not satisfactory for purposes of prediction (giving ten to twenty false ...
A landmark report by the U.S. Geological Survey in 2018 estimates that at least 800 people could be killed and 18,000 more injured in a magnitude 7 earthquake on the Hayward fault centered below ...
The main theme of Stein's research is seismology with phenomena related to earthquakes. [1] He is the author or co-author of more than 200 scientific publications. [4] He and his collaborators did research on tectonic plate motions and how such motions cause earthquakes, as well as how to mitigate societal problems caused by earthquakes. [5]