Physics
Scientific paper
Nov 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985pepi...40..301k&link_type=abstract
Physics of the Earth and Planetary Interiors, Volume 40, Issue 4, p. 301-308.
Physics
4
Scientific paper
A relation between surface-wave magnitude Ms and fault area S for great earthquakes has been proposed log S ⋍ 2Ms - 11.5 (Ms > 7.5) A similar formula has been also derived for body-wave magnitude mb* redetermined from maximum amplitudes of short-period P-wavetrains log S ~ 1.7 mb* These are quite different from a theoretical relation expected on the basis of long-wave approximation. Because wavelengths of seismic waves used for the above magnitudes are very short compared to the size of earthquake sources, these relations represent the short-period nature of the earthquake process. The statistical theory of extreme values has been applied to understand the relations considering that the component waves which constitute the wavetrains for mb* and Ms determinations originate from the random fracture of fault heterogeneities.
Koyama Junji
Shimada Nobusuke
No associations
LandOfFree
Physical basis of earthquake magnitudes: an extreme value of seismic amplitudes from incoherent fracture of random fault patches does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Physical basis of earthquake magnitudes: an extreme value of seismic amplitudes from incoherent fracture of random fault patches, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Physical basis of earthquake magnitudes: an extreme value of seismic amplitudes from incoherent fracture of random fault patches will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-979281