Results 51 to 60 of about 5,621 (162)

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   +1 more source

Tsunami waveform analyses of the 2006 underthrust and 2007 outer-rise Kurile earthquakes [PDF]

open access: yesAdvances in Geosciences, 2008
The 2006 large interplate Kurile earthquake proved that the entire plate interface of the Kurile-Kamchatka subduction zone was strongly coupled from Hokkaido, Japan, to Kamchatka, Russia.
Y. Tanioka, Y. Hasegawa, T. Kuwayama
doaj  

Some preliminary results of a worldwide seismicity estimation: a case study of seismic hazard evaluation in South America

open access: yesAnnals of Geophysics, 2000
Global data have been widely used for seismicity and seismic hazard assessment by seismologists. In the present study we evaluate worldwide seismicity in terms of maps of maximum observed magnitude (Mmax), seismic moment (M 0 ) and seismic moment rate (M
C. V. Christova, T. M. Tsapanos
doaj   +1 more source

Unravelling seismogenesis and characterizing the unique features of two significant felt earthquakes (M > 4.0) of 2020 in the southwestern parts of the Delhi region

open access: yesFrontiers in Earth Science
Two significant earthquakes (M4.6 and 4.2) occurred close to a NE–SW-trending lineament in the southwestern part of the Delhi NCR (National Capital Region) within a short time span of about 5 months in 2020.
Sanjay K. Prajapati   +4 more
doaj   +1 more source

SCALE EFFECT IN SEISMOTECTONICS

open access: yesГеодинамика и тектонофизика, 2015
This publication consolidates and analyses experimental data in a wide range of scales in seismotectonics and geo­mechanics, from a micro-size seismic event (an earthquake focus of a few centimetres) to a mega earthquake.
G. G. Kocharyan
doaj   +1 more source

Short-term seismic crustal deformation of Iran

open access: yesAnnals of Geophysics, 2014
In this paper the short-term seismic deformation of Iran is determined by the earthquake moment tensor summation. The study areas include the Alborz, Kopeh-Dagh, eastern Iran, Makran and Zagros orogenic belts.
Shoja Ansari, Ahmad Zamani
doaj   +1 more source

Seismic Performance Assessment of Regular and Irregular RC Buildings Under BNBC 2020 Using ETABS

open access: yesDisaster in Civil Engineering and Architecture
Seismic performance analysis is crucial to guaranteeing the structural safety of buildings, particularly in seismic-prone locations. This study examines the seismic performance of reinforced concrete (RC) structures with regular and irregular plan forms
Md. Saniul Haque Mahi   +2 more
doaj   +1 more source

The moment method for the seismic inverse problem

open access: yes, 2020
We propose a new mathematical moment technique for the inverse problem of wave propagation in an inhomogenous (half-space) medium in the acoustical wave field Born approximation by using the analytical regulariazation scheme of the theory of quantum fields .
openaire   +3 more sources

Seismic data reconstruction method using generative adversarial network based on moment reconstruction error constraint

open access: yesScience Progress
The seismic data acquired are usually spatially undersampled due to the constraints of the field acquisition environment. However, the removal of multiple waves, offsets, and inversions requires high regularity and integrity of seismic data.
Bin Liu   +3 more
doaj   +1 more source

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