Results 71 to 80 of about 1,216,082 (231)

Theoretical Maximum and Cumulative Seismic Moment Relationships Confirm that Injection Volume Controls the Occurrence Rate, But Not the Magnitude, of Induced Earthquakes

open access: yesGeophysical Research Letters
Classical relationships between cumulative and maximum seismic moment, based on the Gutenberg‐Richter law, shows a non‐physical anomaly for low b‐values. We here derive new relationships, including a low and a high b‐value approximation.
L. De Barros, D. Marsan
doaj   +1 more source

Investigating Factors Influencing Moment Tensor Inversion of Induced Seismicity in Virtual IoT

open access: yesIEEE Access, 2019
The Internet of Things (IoT) for seismicity in underground mine consists of a combination of sensor network hardware and software, which allows the collection of seismic data and data processing for basic event parameters.
Feiyue Wang   +4 more
doaj   +1 more source

Borehole seismic methods for opencast coal exploration [PDF]

open access: yes, 1990
Surface seismic techniques lack the resolution to image the top 100m or so of the earth's surface necessary for opencast coal exploration. The work reported in this thesis is the development of borehole seismic methods making use of the closely spaced ...
Kragh, J. Edward
core  

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

Non-Linear Seismic Analysis of Masonry Buildings [PDF]

open access: yes, 2010
Non-linear analysis is the most viable tool to get accurate predictions of the actual response of masonry structures under earthquake loading. Analytical methods based on the idealisation of masonry walls with openings as systems of macro-elements allow ...
Parisi, Fulvio
core   +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

Seismic Evaluation and Retrofit of Concrete Buildings Volume 1

open access: yes, 1996
Buku ini terdiri atas dua volume, dimana volume pertama membahas tentang bagian-bagian utama dari metodologi evaluasi dan retrofit. Buku akan membantu pembaca untuk memahami bagaimana melakukan evaluasi seismik terhadap bangunan.xix, 317 p. : ill. ; 28,5
Seismic Safety Commission   +1 more
core  

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

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