The Tien Shan takes up about 20 mm/yr of N-S shortening as a result of the India-Eurasia convergence. Recent paleoseismological studies have shown that the shortening is accommodated by a large number of faults, whose slip rates are relatively low. Although the historical earthquake catalogues only reach back a few hundred years, we know that the Tien Shan has seen some of the strongest intracontinetal quakes world-wide with magnitudes exceeding M8. Paleoseismological studies have revealed a large number of surface-rupturing earthquakes, too. But the question is: Do all these known faults rupture in strong earthquakes? In a recent paper, my colleagues and I argue that there is at least one major fault in the Northern Tien Shan that is creeping (Mackenzie et al., 2018). more
Posts in the category » « ( 27 Posts )
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A creeping intracontinental thrust fault in the Tien Shan
September 10, 2018 | in Field work, Paper -
Richard Styron’s Python tool for calculating fault slip rates from offset marker data
April 5, 2016 | in Software and ApplicationsRichard Styron has published several interesting tools for fault/stress analysis and other geoscience problems, see his website here: http://rocksandwater.net/. The latest Python tool he is sharing with us is for calculating fault slip rates from offset topography data – great stuff for paleoseismologists! He announced this a few days ago and allowed me to spread the news. Check it out and let him know what you think!
Hi all,
Last year I built a tool to calculate fault slip rates from offset marker data (age and offset distance of features cut by faults). Although I will be publishing a paper using it eventually, I’d like to spread the word about it now and just get it out to the community. The Slip Rate Calculator can be found here: https://github.com/cossatot/slip_rate_calculator, with more documentation.
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Earthquake rates inferred from active faults and geodynamics
April 24, 2014 | in Earthquake, PaperVanja Kastelic and Michele M. C. Carafa (INGV, L’Aquila, Italy) recently published an article in the Bollettino di Geofisica Teorica e Applicata (an international journal of Earth sciences) entitled “Earthquake rates inferred from active faults and geodynamics: the case of the External Dinarides.” This article covers the area affected by the earthquake of Ml 4.7 (Mw 4.6) occurred on April 22, 2014.
The same authors also wrote a brief seismotectonic report dealing with such an earthquake. They share the report with us under the Creative Commons Attribution-ShareAlike 3.0 Unported License.
A quick seismotectonic report for the 22 April 2014 (Mw=4.6) earthquake in SW Slovenia
Vanja Kastelic1 and Michele M. C. Carafa1
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New paleoseismology papers in BSSA
February 19, 2013 | in PaperSeveral paleoseismology papers have been published in the latest issue of BSSA (103-1). There’s interesting new data on faults in New Zealand, California, and several regions in China, Taiwan and India. For sure I will read the following papers: more
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