Results 201 to 210 of about 117,803 (257)
A moment magnitude scale [PDF]
Journal of Geophysical Research, 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.
Thomas C Hanks, Hiroo Kanamori
exaly +3 more sources
A homogenous moment magnitude and local magnitude scaling relation for earthquakes in Egypt [PDF]
NRIAG 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 +2 more
exaly +2 more sources
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The moment magnitude M w and the energy magnitude M e: common roots and differences
Journal of Seismology, 2010Starting from the classical empirical magnitude-energy relationships, in this article, the derivation of the modern scales for moment magnitude Mw and energy magnitude Me is outlined and critically discussed. The formulas for Mw and Me calculation are presented in a way that reveals, besides the contributions of the physically defined measurement ...
Peter Bormann +2 more
exaly +4 more sources
Homogeneous Moment-Magnitude Calibration in Switzerland
Bulletin of the Seismological Society of America, 2005An earthquake catalog containing a uniform size estimate is important for long-term seismic hazard assessment in regions of low-to-moderate seismicity. During the update of the Earthquake Catalog of Switzerland (ecos), we performed regression analyses to convert all earthquake size information in ecos to physically meaningful moment magnitude M w.
Braunmiller, J. +4 more
openaire +3 more sources
Scaling relations of moment magnitude, local magnitude, and duration magnitude for earthquakes originated in northeast India [PDF]
Earthquake 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, Bora Dipok K
exaly +2 more sources
ON THE MOMENT MAGNITUDE–LOCAL MAGNITUDE CALIBRATION FOR EARTHQUAKES IN THE NORTHWESTERN CAUCASUS
Доклады Российской академии наук. Науки о Земле, 2023The spectral and dynamic parameters of the sources of regional seismic events have been studied for the territory of the Northwestern Caucasus using stations from the network of the Geophysical Survey, Russian Academy of Sciences and Crimean network. This is the first study for the region using such a large dataset.
A. S. Zvereva +2 more
openaire +1 more source
The scalar moment and moment magnitude of microseismic events
SEG Technical Program Expanded Abstracts 2013, 2013Summary We investigate the seismic moment and moment magnitude for microseismic events. We show that the scalar moment M T 0 defined by Bowers and Hudson (1999) should be used in microseismic studies for characterizing the size of an event and calculating its moment magnitude.
Wenjie Jiao +3 more
openaire +1 more source
Trunk muscle cocontraction: The effects of moment direction and moment magnitude
Journal of Orthopaedic Research, 1992AbstractThis study investigated the cocontraction of eight trunk muscles during the application of asymmetric loads to the torso. External moments of 10, 20, 30, 40, and 50 Nm were applied to the torso via a harness system. The direction of the applied moment was varied by 30° increments to the subjects' right side between the sagittally symmetric ...
S A, Lavender +4 more
openaire +2 more sources