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Notes on ETS Papers: Understanding Earthquakes and Episodic Tremor and Slip (ETS), Exams of Geology

These notes provide insights from three research papers on earthquakes and episodic tremor and slip (ets) by brudzinski and allen, ghosh et al., and kao et al. Topics covered include the choice of depth projection, the correlation between ets and earthquakes, and the causes of ets variation.

Typology: Exams

2012/2013

Uploaded on 07/19/2013

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ETS Papers
Notes taken by Nathaniel Borneman
4/6/2010
Brudzinski and Allen
Why did they choose to project to the 40km contour?
-Roughly where E TS occurs
-Why not 35 km?
How well constrained are these depths/is the depth projection valid?
-not really addressed
What causes the variation in ETS recurrence?
-ETS is younger near the edges of the plate
-Is age more correlated to proximity to triple junction or to topographic domain?
-jumps in recurrence interval could correlate to where transfo rms proj ect
-topography is used as a tool to demonstrate different geologic provinces, the correlation is not intended to be
directly to topography
Ghosh et al.
Figure 4 and earthquakes vs. ETS
-How can they compare decades of earthquakes to weeks of ETS?
--timescales are too different
--Kao et al showed this better w / decadal time sca les for earthquakes and ETS
Are earthquakes and ETS mutually exclusive?
-this paper does not sh ow this
Kao et al.
Good paper
!

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ETS Papers Notes taken by Nathaniel Borneman 4/6/ Brudzinski and Allen Why did they choose to project to the 40km contour?

  • Roughly where ETS occurs
  • Why not 35 km? How well constrained are these depths/is the depth projection valid?
  • not really addressed What causes the variation in ETS recurrence?
  • ETS is younger near the edges of the plate
  • Is age more correlated to proximity to triple junction or to topographic domain?
  • jumps in recurrence interval could correlate to where transforms project
  • topography is used as a tool to demonstrate different geologic provinces, the correlation is not intended to be directly to topography Ghosh et al. Figure 4 and earthquakes vs. ETS
  • How can they compare decades of earthquakes to weeks of ETS? --timescales are too different --Kao et al showed this better w/ decadal time scales for earthquakes and ETS Are earthquakes and ETS mutually exclusive?
  • this paper does not show this Kao et al. Good paper