Earthquake environmental effects produced by the Mw 6.1, 20th May 2016 Petermann earthquake, Australia

King, Tamarah R; Quigley, Mark; Clark, Dan

doi:10.1016/j.tecto.2018.10.010

Cited by 31 publications

(45 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Primary literature [9,12,15,18,24,25,38,40,41,43,46,47,57,60,61,63,70,[73][74][75]88] Geoscience Australia (GA) online catalogue https://earthquakes.ga.gov.au/ National Seismic Hazard Assessment 2018 (NSHA18) http://pid.geoscience.gov.au/dataset/ga/123139; [11] Focal Mechanisms…”

Section: Seismological Cataloguesmentioning

confidence: 99%

“…Primary literature [1,9,12,14,15,25,35,37,40,41,47,48,59,63,64,72,73,87,118] Websites https://aees.org.au/; http://fortennantcreekers.com/events/earthquake-friday-22-january-1988/ News articles https://trove.nla.gov.au/; https://www.abc.net.au/news/…”

Section: Historic Photos Of Rupturesmentioning

confidence: 99%

“…6 Rupture aligns with the projected boundary between a granite batholith and granulite facies gneiss; rupture curves around outcrop of granite batholith [9]. 7 Rupture abuts mylonite outcrop with the same strike and dip; mylonite with the same strike and dip outcrops within 1 m of the scarp in multiple locations [73].…”

Section: Geologymentioning

confidence: 99%

See 2 more Smart Citations

Surface-Rupturing Historical Earthquakes in Australia and Their Environmental Effects: New Insights from Re-Analyses of Observational Data

2019

View full text Add to dashboard Cite

We digitize surface rupture maps and compile observational data from 67 publications on ten of eleven historical, surface-rupturing earthquakes in Australia in order to analyze the prevailing characteristics of surface ruptures and other environmental effects in this crystalline basement-dominated intraplate environment. The studied earthquakes occurred between 1968 and 2018, and range in moment magnitude (Mw) from 4.7 to 6.6. All earthquakes involved co-seismic reverse faulting (with varying amounts of strike-slip) on single or multiple (1–6) discrete faults of ≥ 1 km length that are distinguished by orientation and kinematic criteria. Nine of ten earthquakes have surface-rupturing fault orientations that align with prevailing linear anomalies in geophysical (gravity and magnetic) data and bedrock structure (foliations and/or quartz veins and/or intrusive boundaries and/or pre-existing faults), indicating strong control of inherited crustal structure on contemporary faulting. Rupture kinematics are consistent with horizontal shortening driven by regional trajectories of horizontal compressive stress. The lack of precision in seismological data prohibits the assessment of whether surface ruptures project to hypocentral locations via contiguous, planar principal slip zones or whether rupture segmentation occurs between seismogenic depths and the surface. Rupture centroids of 1–4 km in depth indicate predominantly shallow seismic moment release. No studied earthquakes have unambiguous geological evidence for preceding surface-rupturing earthquakes on the same faults and five earthquakes contain evidence of absence of preceding ruptures since the late Pleistocene, collectively highlighting the challenge of using mapped active faults to predict future seismic hazards. Estimated maximum fault slip rates are 0.2–9.1 m Myr-1 with at least one order of uncertainty. New estimates for rupture length, fault dip, and coseismic net slip can be used to improve future iterations of earthquake magnitude—source size—displacement scaling equations. Observed environmental effects include primary surface rupture, secondary fracture/cracks, fissures, rock falls, ground-water anomalies, vegetation damage, sand-blows / liquefaction, displaced rock fragments, and holes from collapsible soil failure, at maximum estimated epicentral distances ranging from 0 to ~250 km. ESI-07 intensity-scale estimates range by ± 3 classes in each earthquake, depending on the effect considered. Comparing Mw-ESI relationships across geologically diverse environments is a fruitful avenue for future research.

show abstract

Section: Seismological Cataloguesmentioning

confidence: 99%

Section: Historic Photos Of Rupturesmentioning

confidence: 99%

See 1 more Smart Citation

Surface-Rupturing Historical Earthquakes in Australia and Their Environmental Effects: New Insights from Re-Analyses of Observational Data

2019

View full text Add to dashboard Cite

show abstract

“…This earthquake is the largest event ever instrumentally recorded in the region, with the hypocenter determined at a very shallow depth (approaches to 0 km) by Geoscience Australia. Field investigations found that this earthquake generated clear surface breaks and fault scarps (Gold et al, 2017;King et al, 2018). A coseismic slip model was proposed by Polcari et al (2018), but their strike-fixed fault model is too simple to explain the complex near-fault observations.…”

Section: Introductionmentioning

confidence: 99%

Changes in Groundwater Level Possibly Encourage Shallow Earthquakes in Central Australia: The 2016 Petermann Ranges Earthquake

Wang

et al. 2019

Geophysical Research Letters

View full text Add to dashboard Cite

The mechanisms of unusual shallow intraplate earthquakes that occasionally occur in stable cratons remain poorly understood. Here we analyze coseismic and postseismic displacement fields associated with the 2016 Petermann Ranges earthquake in central Australia using interferometric synthetic aperture radar data. The earthquake ruptured a previously unmapped fault and was dominated by thrust slip motion of up to 95 cm within the top 3 km of the crust. Postseismic deformation analysis suggests that a combination of poroelastic rebound and afterslip are responsible for the observed signals. The inferred afterslip overlapping spatially with the coseismic rupture highlights that the postseismic slip is coupled with the pore fluid flow around the fault zones. Analysis of historic groundwater‐level changes suggests that shallow seismicity around the Petermann Ranges may have been triggered by environmental stress perturbations due to the fluctuations of groundwater level; however, it is not easy to document statistical significance of this correlation.

show abstract

“…The first version of the new macroseismic scale was published in 2004 [36], and the second in 2007 [1]. The scale was very well accepted worldwide, and a huge number of papers dealing with the use of this scale have been produced since then across the five continents [1][2][3][4][5][6][7][37][38][39][40][41][42][43][44][45][46][47][48].…”

mentioning

confidence: 99%

History of the Environmental Seismic Intensity Scale ESI-07

Serva¹

2019

Geosciences

View full text Add to dashboard Cite

This brief note aims to describe the history, from its early original idea, of the new macroseismic scale: The Environmental Seismic Intensity Scale 2007 (ESI 2007). It can be used together with other existing scales or alone when needed for measuring the intensity of an earthquake on the basis of the primary and secondary effects of a seismic event on the natural environment. These effects could be the major sources of earthquake hazards, as recently proved. This note also aims to contribute to the understanding of processes that induced the researcher to develop an idea, to pursue it, and bring it to its end, first through the help of valuable Italian researchers and then through the constructive exchange of ideas with researchers of different cultural backgrounds operating almost everywhere in the world. This note is sponsored and approved by the International Union for Quaternary Research (INQUA), and the Environmental Seismic Intensity scale (ESI-07) was published in 2007 after a revision process of about eight years.

show abstract

Earthquake environmental effects produced by the Mw 6.1, 20th May 2016 Petermann earthquake, Australia

Cited by 31 publications

References 46 publications

Surface-Rupturing Historical Earthquakes in Australia and Their Environmental Effects: New Insights from Re-Analyses of Observational Data

Surface-Rupturing Historical Earthquakes in Australia and Their Environmental Effects: New Insights from Re-Analyses of Observational Data

Changes in Groundwater Level Possibly Encourage Shallow Earthquakes in Central Australia: The 2016 Petermann Ranges Earthquake

History of the Environmental Seismic Intensity Scale ESI-07

Contact Info

Product

Resources

About