搜尋結果
The Weather Forecast Center ( Chinese: 氣象預報中心; pinyin: Qìxiàng Yùbào Zhōngxīn) is the department responsible for monitoring actual weather conditions and making short and medium term forecasts concerning the weather. It also issues severe weather advisories for conditions including heavy rain, cold snaps, typhoons and storms, and dense fog.
USGS ShakeMap. Taiwan's Central Weather Administration (CWA) measured the earthquake's local magnitude at 7.2, [7] while the United States Geological Survey (USGS) placed the earthquake at M w 7.4. [8] . It was the strongest earthquake to hit Taiwan since the 1999 Jiji earthquake, which measured M w 7.7. [9]
- Development
- Details
- Richter Magnitudes
- Magnitude Empirical Formulae
- External Links
Prior to the development of the magnitude scale, the only measure of an earthquake's strength or "size" was a subjective assessment of the intensity of shaking observed near the epicenter of the earthquake, categorized by various seismic intensity scales such as the Rossi-Forel scale. ("Size" is used in the sense of the quantity of energy released,...
The Richter scale was defined in 1935 for particular circumstances and instruments; the particular circumstances refer to it being defined for Southern California and "implicitly incorporates the attenuative properties of Southern California crust and mantle." The particular instrument used would become saturated by strong earthquakes and unable to...
The Richter magnitude of an earthquake is determined from the logarithm of the amplitude of waves recorded by seismographs (adjustments are included to compensate for the variation in the distance between the various seismographs and the epicenterof the earthquake). The original formula is: 1. M L = log 10 A − log 10 A 0 ( δ ) = log 10 [ A / ...
These formulae for Richter magnitude ML are alternatives to using Richter correlation tables based on Richter standard seismic event (M L = 0 {\displaystyle M_{\mathrm {L} }=0} , A = 0.001 m m {\displaystyle A=0.001\mathrm {mm} } , D = 100 k m {\displaystyle D=100\mathrm {km} } ). Below, Δ {\displaystyle \textstyle \Delta } is the epicentral distan...
Seismic Monitor – IRIS ConsortiumPerspective: a graphical comparison of earthquake energy release – Pacific Tsunami Warning CenterThe European-Mediterranean Seismological Centre ( EMSC; French: Centre Sismologique Euro-Méditerranéen, CSEM) is an international, non-governmental and not-for-profit organisation . The European-Mediterranean region is prone to destructive earthquakes. [1] When an earthquake occurs, a scientific organisation is needed to determine, as quickly ...
The Seismic Experiment for Interior Structure ( SEIS) is a seismometer and the primary scientific instrument on board the InSight Mars lander launched on 5 May 2018 for a landing on 26 November 2018; the instrument was deployed to the surface of Mars on 19 December.
On August 23, 2011, a magnitude 5.8 earthquake hit the Piedmont region of the U.S. state of Virginia at 1:51:04 p.m. EDT. The epicenter, in Louisa County, was 38 mi (61 km) northwest of Richmond and 5 mi (8 km) south-southwest of the town of Mineral.It was an intraplate earthquake with a maximum perceived intensity of VIII (Severe) on the Mercalli intensity scale.
Canonical commutation rule for position q and momentum p variables of a particle, 1927. pq − qp = h / (2 πi ). Uncertainty principle of Heisenberg, 1927. The uncertainty principle, also known as Heisenberg's indeterminacy principle, is a fundamental concept in quantum mechanics. It states that there is a limit to the precision with which ...
