Triggered Seismicity in Utah from the 3 November 2002 Denali Fault Earthquake

Pankow, K. L.; Arabasz, Walter J.; Pechmann, James C.; Nava, Susan J.

doi:10.1785/0120040609

Cited by 68 publications

(44 citation statements)

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“…The next question we address is whether mud volcano triggering is enhanced within weeks to a year after a large earthquake. Delayed triggering (days to weeks) of other phenomena by earthquakes has been observed previously in other regions [e.g., Pankow et al , 2004; Prejean et al , 2004], and we therefore expect it might exist in Azerbaijan as well. In particular, the large number (14) of reported eruptions in the year 2001, which is more than 3 times the standard deviation from the mean, occurred within a year of some of the largest earthquakes in this region.…”

Section: Data and Proceduressupporting

confidence: 55%

“…Strain and stress perturbations from large earthquakes are capable of affecting systems as diverse as groundwater aquifers, hydrocarbon systems, geothermal systems, and magmatic volcanoes at long distances [e.g., Beresnev and Johnson , 1994; Gomberg and Davis , 1996; Linde and Sacks , 1998; Gomberg et al , 2001; Roeloffs et al , 2003]. A variety of mechanisms have been proposed to explain how earthquakes can alter these systems but considerable uncertainties remain [e.g., Brodsky et al , 1988; Brodsky , 2003; Hill et al , 2002; Pankow et al , 2004; Prejean et al , 2004]. It has been suggested that earthquakes can also trigger large methane mud volcano eruptions ( Abikh [1863], as cited by Aliyev et al [2002, 2001] and Aliyev [2004]).…”

Section: Introductionmentioning

confidence: 99%

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Correlations between earthquakes and large mud volcano eruptions

et al. 2007

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[1] We examine the potential triggering relationship between large earthquakes and methane mud volcano eruptions. Our data set consists of a 191-year catalog of eruptions from 77 volcanoes in Azerbaijan, central Asia, supplemented with reports from mud volcano eruptions in Japan, Romania, Pakistan, and the Andaman Islands. We compare the occurrence of historical regional earthquakes (M > 5) with the occurrence of Azerbaijan mud volcano eruptions and find that the number of same-day earthquake/ eruption pairs is significantly higher than expected if the eruptions and earthquakes are independent Poisson processes. The temporal correlation between earthquakes and eruptions is most pronounced for nearby earthquakes (within $100 km) that produce seismic intensities of Mercalli 6 or greater at the location of the mud volcano. This assumed magnitude/distance relationship for triggering observed in the Azerbaijan data is consistent with documented earthquake-induced mud volcano eruptions elsewhere. We also find a weak correlation that heightened numbers of mud volcano eruptions occur within 1 year after large earthquakes. The distribution of yearly eruptions roughly approximates a Poisson process, although the repose times somewhat favor a nonhomogenous failure rate, which implies that the volcanoes require some time after eruption to recharge. The volcanic triggering likely results from some aspect of the seismic wave's passage, but the precise mechanism remains unclear.

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Section: Data and Proceduressupporting

confidence: 55%

Section: Introductionmentioning

confidence: 99%

Correlations between earthquakes and large mud volcano eruptions

et al. 2007

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“…The spatially widespread, immediate changes in seismicity rates that followed the 1992 M w = 7.3 Landers, California, earthquake removed most doubts about the potential for dynamic triggering [ Hill et al , 1993]. Similar observations made following the 2002 M w = 7.9 Denali, Alaska, earthquake demonstrated that the post‐Landers phenomena were not likely freak events [ Eberhart‐Phillips et al , 2003; Gomberg et al , 2004; Husen et al , 2004a, 2004b; Prejean et al , 2004; Pankow et al , 2004]. In addition to these observations and other studies documenting episodes of triggered seismicity at distances well beyond the traditional aftershock zone, which typically equals several multiples of the main shock fault dimension [e.g., Brodsky et al , 2000; Hough , 2001; Mohamad et al , 2000; Hough , 2005], there have been a number of studies that have shown observationally that dynamic triggering is not only a far‐field phenomenon [e.g., Harris et al , 2002; Gomberg et al , 2003].…”

Section: Stress Transfer Modelmentioning

confidence: 93%

Introduction to special section: Stress transfer, earthquake triggering, and time‐dependent seismic hazard

2005

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[1] In this introduction, we review much of the recent work related to stress transfer, earthquake triggering, and time-dependent seismic hazard in order to provide context for the special section on these subjects. Considerable advances have been made in the past decade, and we focus on our understanding of stress transfer at various temporal and spatial scales, review recent studies of the role of fluids in earthquake triggering, describe evidence for the connection between volcanism and earthquake triggering, examine observational evidence for triggering at all scales, and finally discuss the link between earthquake triggering and time-dependent seismic hazard. We conclude by speculating on future areas of research in the next decade.Citation: Steacy, S., J. Gomberg, and M. , Introduction to special section: Stress transfer, earthquake triggering, and time-dependent seismic hazard,

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“…Additional studies provided evidence that dynamic stress changes generated by the passage of seismic waves might trigger distant aftershocks. Dynamic stress changes, although transient, can be an order of magnitude larger than static stress changes and are thought to be a more likely triggering agent of remote aftershocks [e.g., Cotton and Coutant , 1997; Kilb et al , 2000; Voisin et al , 2000; Moran et al , 2004; Pankow et al , 2004; Prejean et al , 2004; Brodsky and Prejean , 2005; Felzer and Brodsky , 2006]. …”

Section: Introductionmentioning

confidence: 99%

Quantifying the remote triggering capabilities of large earthquakes using data from the ANZA Seismic Network catalog (southern California)

Kane¹,

Kilb²,

Berg³

et al. 2007

J. Geophys. Res.

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[1] Various studies have examined remote earthquake triggering in geothermal areas, but few studies have investigated triggering in nongeothermal areas. We search the ANZA (southern California) network catalog for evidence of remote triggering. Using three statistical tests (binomial, Kolmogorov-Smirnov, and Wilcoxon rank sum), we determine the significance of the rates and timing of earthquakes in southern California following large teleseismic events. To validate our statistical tests, we identify 20 local main shocks (M L ! 3.1) with obvious aftershock sequences and 22 local main shocks (M L ! 3.0) that lack obvious aftershock sequences. Our statistical tests quantify the ability of these local main shocks to trigger aftershocks. Assuming that the same triggering characteristic (i.e., a particular seismic wave amplitude, perhaps in a specific frequency band) is evident for both local and remote main shocks, we apply the same tests to 60 remote main shocks (m b ! 7.0) and assess the ability of these events to trigger seismicity in southern California. We find no obvious signature of remote triggering. We find minimal differences between the spectral amplitudes and maximum ground velocities of the local triggering and nontriggering earthquakes. Similar analysis of a select few of our remote earthquakes shows that the related ground motion regularly exceeds that of local earthquakes both at low frequencies and in maximum velocity. This evidence weakly suggests that triggering requires larger amplitudes at high frequencies and that a maximum ground velocity alone is not the primary factor in remote triggering. Our results are complex, suggesting that a triggering threshold, if it exists, may depend on several factors.

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Triggered Seismicity in Utah from the 3 November 2002 Denali Fault Earthquake

Cited by 68 publications

References 50 publications

Correlations between earthquakes and large mud volcano eruptions

Correlations between earthquakes and large mud volcano eruptions

Introduction to special section: Stress transfer, earthquake triggering, and time‐dependent seismic hazard

Quantifying the remote triggering capabilities of large earthquakes using data from the ANZA Seismic Network catalog (southern California)

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