Results 1 to 10 of about 30,612,164 (294)

Revealing the spatiotemporal complexity of the magnitude distribution and b-value during an earthquake sequence. [PDF]

open access: yesNat Commun, 2022
The Magnitude–Frequency-Distribution (MFD) of earthquakes is typically modeled with the (tapered) Gutenberg–Richter relation. The main parameter of this relation, the b-value, controls the relative rate of small and large earthquakes.
Herrmann M, Piegari E, Marzocchi W.
europepmc   +2 more sources

Insights from b value analysis of Campi Flegrei unrests. [PDF]

open access: yesSci Rep
The Campi Flegrei caldera has experienced several episodes of volcanic unrest during the last few centuries, most notably in 1982-1984 and 2005-present. These periods of unrest are characterized by ground uplift, seismic swarms, and increased degassing.
Convertito V   +3 more
europepmc   +4 more sources

Variability of b-value before and after the Gorkha earthquake in the Central Himalaya and Vicinity

open access: yesBibechana, 2021
This study computes the b-value of Gutenberg-Richter relation associated with the 25 April 2015 Gorkha earthquake and its aftershock sequences. For this the homogeneous catalogue of 769 earthquakes that occurred in the Himalayan compressed belt and its ...
Ram Krishna Tiwari, Harihar Paudyal
doaj   +1 more source

Role of Diffusion Weighted Magnetic Resonance Imaging in Differentiating Benign From Malignant Thyroid Lesions: A Prospective Study [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2020
Introduction: Accurate non-invasive imaging technique for characterising thyroid nodules has always been problematic. Diffusion-Weighted Magnetic Resonance Imaging (DW-MRI) is a functional MR imaging modality that quantifies the net diffusion of water ...
Kanika Bhargava   +5 more
doaj   +1 more source

Capacitive and Diffusive Contributions in Supercapacitors and Batteries: A Critique of b-Value and the ν-ν1/2 Model.

open access: yesSmall, 2023
Electrochemical energy storage devices run on two fundamentally different processes: charge storage across the double layer and redox reactions. A satisfactory understanding of the underlying mechanism is only possible once the two contributions are ...
Sheharyar Pervez, M. Z. Iqbal
semanticscholar   +1 more source

Physical Mechanism for a Temporal Decrease of the Gutenberg‐Richter b‐Value Prior to a Large Earthquake

open access: yesJournal of Geophysical Research: Solid Earth, 2023
Observations of seismicity prior to large earthquakes show that the slope of a Gutenberg‐Richter magnitude‐frequency relation, referred to as a b‐value, sometimes decreases with time to the mainshock.
Ryo Ito, Y. Kaneko
semanticscholar   +1 more source

Spatial variations of Rn and CO2 emissions in the Wuzhong–Lingwu region, northwest China

open access: yesFrontiers in Earth Science, 2023
Soil gas Rn and CO2 in surface rupture and deep-seated fault zones are important indicators for tectonic and seismic activities. The spatial distributions of Rn and CO2 concentrations and their relationships with earthquakes and stress state in the ...
Xinyan Li   +9 more
doaj   +1 more source

Acoustic Emission b Value Characteristics of Granite under True Triaxial Stress

open access: yesMathematics, 2022
The acoustic emission b value is an important and widely used parameter for the early prediction of rock fractures. In this study, five groups of true triaxial compression tests were conducted on granite specimens to analyze changes in b value during the
L. Dong   +4 more
semanticscholar   +1 more source

Gutenberg–Richter B-Value Time Series Forecasting: A Weighted Likelihood Approach

open access: yesForecasting, 2021
We introduce a novel approach to estimate the temporal variation of the b-value parameter of the Gutenberg–Richter law, based on the weighted likelihood approach.
M. Taroni   +2 more
semanticscholar   +1 more source

Assessing Earthquake Forecast Performance Based on b Value in Yunnan Province, China

open access: yesEntropy, 2021
Many studies have shown that b values tend to decrease prior to large earthquakes. To evaluate the forecast information in b value variations, we conduct a systematic assessment in Yunnan Province, China, where the seismicity is intense and moderate ...
Rui Wang   +9 more
semanticscholar   +1 more source

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