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Expanding Moment Magnitude Pools for Earthquake Magnitude Homogenization

open access: yesApplied Sciences, 2022
A comparison on the influence of different moment magnitude pools on magnitude homogenization regressions was presented. The control moment magnitude pool is composed of earthquake records from GCMT.
Ausatha Rabbanny Yanto, Eric Yee
doaj   +2 more sources

Moment Magnitude Homogenization Relations in the South Korean Region from 1900 to 2020

open access: yesApplied Sciences, 2022
Utilizing several international and local earthquake catalogs, a set of regression models converting magnitude types typically found in the South Korean region to moment magnitude MW is presented.
Eric Yee, Wonsick Park
doaj   +3 more sources

A moment magnitude scale [PDF]

open access: yesJournal of Geophysical Research: Solid Earth, 1979
The nearly coincident forms of the relations between seismic moment M0 and the magnitudes ML, MS, and Mw imply a moment magnitude scale M = ⅔ log M0 ‐ 10.7 which is uniformly valid for 3 ≲ ML ≲ 7, 5 ≲ Ms ≲ 7½, and Mw ≳ 7½.
Hiroo Kanamori, Thomas C. Hanks
exaly   +3 more sources

A homogenous moment magnitude and local magnitude scaling relation for earthquakes in Egypt [PDF]

open access: yesNRIAG Journal of Astronomy and Geophysics, 2020
In this work, we publish a moment-local magnitude scale catalogue for the Egyptian National Seismic Network (ENSN) since 1997 to 2019 as necessary for the study of seismicity and seismic hazard est...
Abd El-Aziz Khairy Abd El-Aal   +1 more
exaly   +2 more sources

A theoretical basis of the moment magnitude scale

open access: yesEarth, Planets and Space
To measure the size of an earthquake, we can use two physically different quantities: the radiated seismic energy $$E_{{\text{R}}}$$ E R , from which seismic magnitude scales are defined, and the seismic moment $$M_{0}$$ M 0 .
Mitsuhiro Matsu’ura
doaj   +2 more sources

Local magnitude, duration magnitude and seismic moment of Dahshour 1992 earthquakes

open access: yesAnnals of Geophysics, 2000
Local magnitudes ML have been calculated for 56 earthquakes of the Dahshour 1992 sequence using simulated records of the KEG broadband station and the estimated calibration function of the Dahshour area.
M. F. Abdelwahed   +3 more
doaj   +4 more sources

Scaling relations of moment magnitude, local magnitude, and duration magnitude for earthquakes originated in northeast India [PDF]

open access: yesEarthquake Science, 2016
In this study, we aim to improve the scaling between the moment magnitude (M W), local magnitude (M L), and the duration magnitude (M D) for 162 earthquakes in Shillong-Mikir plateau and its adjoining region of northeast India by extending the M W estimates ...
Dipok K Bora
exaly   +2 more sources

Automatic computation of moment magnitudes for small earthquakes and the scaling of local to moment magnitude [PDF]

open access: yesGeophysical Journal International, 2010
ISSN:0956 ...
Edwards, Benjamin   +3 more
openaire   +3 more sources

Multiple magnitudes and their cleverness

open access: yes地震科学进展, 2022
Magnitude is a measure of the size of an earthquake. In practical work such as seismic activity analysis, people usually think that an earthquake has only one magnitude. Many people will have such doubts:why use multiple magnitudes?
Ruifeng Liu
doaj   +1 more source

Radiated seismic energy from the 2021 ML 5.8 and ML 6.2 Shoufeng (Hualien), Taiwan, earthquakes and their aftershocks

open access: yesTerrestrial, Atmospheric and Oceanic Sciences, 2022
Key points logEs is proportional to 2.0ML for the Shoufeng earthquake sequence in Taiwan. A crossover magnitude detected at ML = 4.0 divides the MW–ML relation into two parts. For ML > 4.0, logM0 ∝ 0.67ML and MW ∝ ML; for ML 
Ruey-Der Hwang   +8 more
doaj   +1 more source

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