منابع مشابه
Estimation of the Maximum Earthquake Magnitude, mmax
This paper provides a generic equation for the evaluation of the maximum earthquake magnitude mmax for a given seismogenic zone or entire region. The equation is capable of generating solutions in different forms, depending on the assumptions of the statistical distribution model and/or the available information regarding past seismicity. It includes the cases (i) when earthquake magnitudes are...
متن کاملMulti - Scale Gradient Magnitude
A partitioning of an nD image is deened as the watersheds of some locally computable inhomogeneity measure. Dependent on the scale of the inhomogeneity measure a coarse or ne partitioning is deened. By analysis of the structural changes (catastrophes) in the measure introduced when scale is increased, an multi-scale linking of segments can be deened. This paper describes the multi-scale linking...
متن کاملMagnitude Estimates of Two Large Aftershocks of the 16 December 1811 New Madrid Earthquake
The three principal New Madrid mainshocks of 1811–1812 were followed by extensive aftershock sequences that included numerous felt events. Although no instrumental data are available for either the mainshocks or the aftershocks, available historical accounts do provide information that can be used to estimate magnitudes and locations for the large events. In this article we investigate two of t...
متن کاملThe magnitude 6.7 northridge, california, earthquake of 17 january 1994.
The most costly American earthquake since 1906 struck Los Angeles on 17 January 1994. The magnitude 6.7 Northridge earthquake resulted from more than 3 meters of reverse slip on a 15-kilometer-long south-dipping thrust fault that raised the Santa Susana mountains by as much as 70 centimeters. The fault appears to be truncated by the fault that broke in the 1971 San Fernando earthquake at a dept...
متن کاملA probabilistic neural network for earthquake magnitude prediction
A probabilistic neural network (PNN) is presented for predicting the magnitude of the largest earthquake in a pre-defined future time period in a seismic region using eight mathematically computed parameters known as seismicity indicators. The indicators considered are the time elapsed during a particular number (n) of significant seismic events before the month in question, the slope of the Gu...
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ژورنال
عنوان ژورنال: Nature
سال: 1977
ISSN: 0028-0836,1476-4687
DOI: 10.1038/270299a0