An analytical algorithm for designing radon monitoring network to predict the location and magnitude of earthquakes

Hashemi, Shide Sadat; Negarestani, Ali; Namvaran, Mojtaba; Nasab, S. M. Musavi

doi:10.1007/s10967-012-2310-0

Cited by 18 publications

(7 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Surveys of soil gas have been commonly used to trace buried faults and to study the behavior of endogenous gases of specific origins in the shallow environment (i.e., trace gases such as radon and helium, and carrier gases such as carbon dioxide, nitrogen, methane, etc.) [1][2][3][4][5][6][7][8] and have received significant attention over the last few years as earthquake precursors [6,[9][10][11][12][13][14][15]. In addition, changes in stress/strain associated with seismic activity may force the migration of crustal fluid, in particular along active faults, thereby altering the geochemical characteristics of the surface fault zone [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Fractal Dimension Analysis Applied to Soil CO2 Fluxes in Campotosto’s Seismic Area, Central Italy

et al. 2020

View full text Add to dashboard Cite

This article reports fractal dimension analysis applied to soil CO2 fluxes measured in an Italian seismic area. The work was carried out with the use of a calibrated flux chamber unit. The fractal dimension (FD) from isotropic variograms was used as a method to understand related scale-dependent phenomena. The aim was to investigate the spatial variability of CO2 flux measurements in four directions (horizontal, vertical, 45° and 135° directions) related to different distances between the measuring points and from a fault. High fractal dimension values were found (2.5 ≤ FD ≤ 3.0). These imply strong anti-persistent behavior near to and far from the fault. Lower fractal dimensions were addressed at longer distances from the fault.

show abstract

Section: Introductionmentioning

confidence: 99%

Fractal Dimension Analysis Applied to Soil CO2 Fluxes in Campotosto’s Seismic Area, Central Italy

et al. 2020

View full text Add to dashboard Cite

show abstract

“…and [e.g., King, 1985;Baubron et al, 2002;Ciotoli et al, 2007;Fu et al, 2008;Walia et al, S 2009;Ciotoli et al, 2014;Bigi et al, 2014;Sciarra et al, 2014]. Furthermore, over the past several years' soil gases has captured considerable attention as earthquake precursors [Wakita et al, 1980;Reddy et al, 2004;Walia et al, 2009;Perez et al, 2007;Ghosh et al, 2009;Hashemi et al, 2013;Petraki et al, 2015], in fact that the stress/strain changes related to seismic activity may force crustal fluid to migrate up, especially along active faults, thereby altering the geochemical characteristics of the fault zone at surface [Rice, 1992;Sibson, 2000;Collettini et al, 2008]. The migration of these gases by diffusion and/or advection along buried active faults can generate shallow anomalies with concentrations significantly higher than background levels; these anomalies can provide reliable information about the location and the geometry of the shallow fracturing zone, as well as about the permeability within the fault zone [King et al, 1996;Baubron et al, 2002;Ciotoli et al, 2007;Annunziatellis et al, 2008;Bigi et al, 2014;Sciarra et al, 2014].…”

Section: Introductionmentioning

confidence: 99%

Soil gas geochemical behaviour across buried and exposed faults during the 24 august 2016 central Italy earthquake

Ciotoli

Sciarra

Ruggiero

et al. 2016

Annals of Geophysics

View full text Add to dashboard Cite

Following the earthquake (ML=6.0) of 24 August 2016 that affected large part of the central Apennine between the municipalities of Norcia (PG) and Amatrice (RI) (central Italy), two soil gas profiles (i.e., 222Rn, 220Rn, CO2 and CO2 flux) were carried out across buried and exposed coseismic fault rupture of the Mt. Vettore fault during the seismic sequence. The objective of the survey was to explore the mechanisms of migration and the spatial behaviour of different gas species near still-degassing active fault. Results provide higher gas and CO2 flux values (about twice for 222Rn and CO2 flux) in correspondence of the buried sector of the fault than those measured across the exposed coseismic rupture. Anomalous peaks due to advective migration are clearly visible on both side of the buried fault (profile 1), whereas the lower soil gas concentrations measured across the exposed coseimic rupture (profile 2) are mainly caused by shallow and still acting diffusive degassing associated to faulting during the seismic sequence. These results confirm the usefulness of the soil gas survey to spatially recognise the shallow geometry of hidden faults, and to discriminate the geochemical migration mechanisms occurring at buried and exposed faults related to seismic activity.

show abstract

“…In Kumar et al (2009), the radon anomalies observed in the region are connected with the seismic events of the Kangra Valley of north-west Himalayas. Hashemi et al (2013), Kloeden and Platen (2011) consider a new analytical algorithm to estimate location and magnitude of coming earthquakes by means of variations in radon concentration. The authors, using the radon monitoring for Kernal province, show that the optimum locations and magnitudes of earthquakes can be obtained within an acceptable range.…”

Section: Introductionmentioning

confidence: 99%

Some considerations between radon and earthquakes in the crater of L’Aquila

Attanasio

Maravalle

2016

Nat Hazards

View full text Add to dashboard Cite

This paper is focused on developing statistical models to analyze the connection between radon emissions and earthquakes. Owing to our personal interest and the large amount of local data available in the period before and after the main shock, we decided to run our analysis on the recent earthquake which affected the Italian city of L'Aquila. We investigated the viability of a statistical method employing radon emissions to predict earthquakes. The results show a possible connection between radon and earthquake, but it is useless, in our opinion, to use this connection to forecast the magnitude of the seismic events.

show abstract

An analytical algorithm for designing radon monitoring network to predict the location and magnitude of earthquakes

Cited by 18 publications

References 27 publications

Fractal Dimension Analysis Applied to Soil CO2 Fluxes in Campotosto’s Seismic Area, Central Italy

Fractal Dimension Analysis Applied to Soil CO2 Fluxes in Campotosto’s Seismic Area, Central Italy

Soil gas geochemical behaviour across buried and exposed faults during the 24 august 2016 central Italy earthquake

Some considerations between radon and earthquakes in the crater of L’Aquila

Contact Info

Product

Resources

About