Estimation of the coda‐wave attenuation and geometrical spreading in the New Madrid seismic zone

F Sedaghati, S Pezeshk - Bulletin of the Seismological …, 2016 - pubs.geoscienceworld.org
Using the single backscattering method, coda quality factor functions through coda window
lengths of 20, 30, 40, 50, and 60 s have been estimated for the New Madrid seismic zone …

Fault extent estimation for near‐real‐time ground‐shaking map computation purposes

V Convertito, M Caccavale… - Bulletin of the …, 2012 - pubs.geoscienceworld.org
Rapid evaluation of strong ground‐shaking maps after moderate‐to‐large earthquakes is
crucial to recognizing those areas where the largest damage and losses are expected …

Source parameters and three‐dimensional attenuation structure from the inversion of microearthquake pulse width data: Qp imaging and inferences on the thermal …

S de Lorenzo, A Zollo, F Mongelli - Journal of Geophysical …, 2001 - Wiley Online Library
The three‐dimensional P wave attenuation structure of the Campi Flegrei caldera and the
estimate of source parameters for 87 local microearthquakes is obtained by the nonlinear …

High-resolution passive seismic tomography for 3D velocity, Poisson's ratio ν, and P-wave quality QP in the Delvina hydrocarbon field, southern Albania

GA Tselentis, N Martakis… - …, 2011 - pubs.geoscienceworld.org
We have studied using traveltimes of P-and S-waves and initial seismic-pulse rise-time
measurements from natural microearthquakes to derive 3D P-wave velocity VP information …

Source, attenuation, and site parameters of the 1997 Umbria‐Marche seismic sequence from the inversion of P wave spectra: A comparison between constant QP and …

S de Lorenzo, A Zollo, G Zito - Journal of Geophysical …, 2010 - Wiley Online Library
The attenuation of P waves, the site responses, and the source parameters (seismic
moment, corner frequency, source dimension) of 490 seismic events that occurred during …

[HTML][HTML] An EGF technique to infer the source parameters of a circular crack growing at a variable rupture velocity

S de Lorenzo, M Michele - Frontiers in Earth Science, 2024 - frontiersin.org
Circular crack models with a constant rupture velocity struggle to effectively model both the
amplitude and duration of first P-wave pulses generated by small magnitude seismic events …

Body wave attenuation heralds incoming eruptions at Mount Etna

P De Gori, C Chiarabba, E Giampiccolo… - …, 2011 - pubs.geoscienceworld.org
How fast, and how foreseeable, is magma ascent is one of the most compelling and
unanswered issues of volcanology. The velocity of the magma upwelling depends on the …

Source and Qp parameters from pulse width inversion of microearthquake data in southeastern Sicily, Italy

S de Lorenzo, G Di Grazia… - Journal of …, 2004 - Wiley Online Library
Source and Qp parameters were estimated from the inversion of first arrival P waveform
durations of about 300 microearthquakes recorded at a digital seismic network operating in …

Average QP and QS estimation in marine sediments using a dense receiver array

RA Rørstadbotnen, M Landrø - Geophysics, 2023 - pubs.geoscienceworld.org
ABSTRACT A new spectral ratio method has been used to compute average P-and S-wave
quality factors, QP and QS, for the sedimentary sequence below the “V”-shaped Oseberg …

Using ground motion prediction equations to monitor variations in quality factor due to induced seismicity: A feasibility study

V Convertito, R De Matteis, R Esposito, P Capuano - Acta Geophysica, 2020 - Springer
Sub-surface operations for energy production such as gas storage, fluid reinjection or
hydraulic fracking may modify the physical properties of the rocks, in particular the seismic …