CyberShake Tapered Hypocenter Implementation - Revision history

Kmilner: /* Hazard Maps */

2015-06-16T23:48:41Z

Hazard Maps

← Older revision		Revision as of 23:48, 16 June 2015
Line 44:		Line 44:
	== Hazard Maps ==		== Hazard Maps ==

	We can also calculate full hazard maps with this tapered hypocenter PDF. Results are shown below.		We can also calculate full hazard maps with this tapered hypocenter PDF. Results are shown below, demonstrating the impact is small at the 2% in 50 year hazard level.

	[[File:CyberShake_15_4_Hypocenter_Map_Orig.png\|400px\|thumb\|left\|Original Uniform Hazard Map, 3s SA]]		[[File:CyberShake_15_4_Hypocenter_Map_Orig.png\|400px\|thumb\|left\|Original Uniform Hazard Map, 3s SA, 2% in 50yr]]
	[[File:CyberShake_15_4_Hypocenter_Map_Mod.png\|400px\|thumb\|left\|Tapered Hypocenter Modified Map, 3s SA]]		[[File:CyberShake_15_4_Hypocenter_Map_Mod.png\|400px\|thumb\|left\|Tapered Hypocenter Modified Map, 3s SA, 2% in 50yr]]
	[[File:CyberShake_15_4_Hypocenter_Map_Ratio.png\|400px\|thumb\|left\|Ratio Map, Tapered/Original, 3s SA]]		[[File:CyberShake_15_4_Hypocenter_Map_Ratio.png\|400px\|thumb\|left\|Ratio Map, Tapered/Original, 3s SA, 2% in 50yr]]

Kmilner: /* Hazard Maps */

2015-06-16T23:47:33Z

Hazard Maps

← Older revision		Revision as of 23:47, 16 June 2015
Line 46:		Line 46:
	We can also calculate full hazard maps with this tapered hypocenter PDF. Results are shown below.		We can also calculate full hazard maps with this tapered hypocenter PDF. Results are shown below.

	[[File:CyberShake_15_4_Hypocenter_Map_Orig.png\|400px\|thumb\|left\|Original Hazard Map, 3s SA]]		[[File:CyberShake_15_4_Hypocenter_Map_Orig.png\|400px\|thumb\|left\|Original Uniform Hazard Map, 3s SA]]

	[[File:CyberShake_15_4_Hypocenter_Map_Mod.png\|400px\|thumb\|left\|Tapered Hypocenter Modified Map, 3s SA]]		[[File:CyberShake_15_4_Hypocenter_Map_Mod.png\|400px\|thumb\|left\|Tapered Hypocenter Modified Map, 3s SA]]

	[[File:CyberShake_15_4_Hypocenter_Map_Ratio.png\|400px\|thumb\|left\|Ratio Map, Tapered/Original, 3s SA]]		[[File:CyberShake_15_4_Hypocenter_Map_Ratio.png\|400px\|thumb\|left\|Ratio Map, Tapered/Original, 3s SA]]

Kmilner at 23:47, 16 June 2015

2015-06-16T23:47:00Z

← Older revision		Revision as of 23:47, 16 June 2015
Line 41:		Line 41:

	[[File:CyberShake_15_4_Hypocenter_Curve_Comparison_STNI.png]]		[[File:CyberShake_15_4_Hypocenter_Curve_Comparison_STNI.png]]

			== Hazard Maps ==

			We can also calculate full hazard maps with this tapered hypocenter PDF. Results are shown below.

			[[File:CyberShake_15_4_Hypocenter_Map_Orig.png\|400px\|thumb\|left\|Original Hazard Map, 3s SA]]

			[[File:CyberShake_15_4_Hypocenter_Map_Mod.png\|400px\|thumb\|left\|Tapered Hypocenter Modified Map, 3s SA]]

			[[File:CyberShake_15_4_Hypocenter_Map_Ratio.png\|400px\|thumb\|left\|Ratio Map, Tapered/Original, 3s SA]]

Kmilner: /* Tapered Hypocenter PDF */

2015-05-28T04:49:01Z

Tapered Hypocenter PDF

← Older revision		Revision as of 04:49, 28 May 2015
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	! Source 90, Rup 3		! Source 90, Rup 3
	\| [[File:CyberShake_15_4_rupture_hypos_90_3_das_ddw.png]]		\| [[File:CyberShake_15_4_rupture_hypos_90_3_das_ddw.png]]
			\|-
			! Source 90, Rup 6
			\| [[File:CyberShake_15_4_rupture_hypos_90_6_das_ddw.png]]
	\|}		\|}


	== Hazard Curves ==		== Hazard Curves ==

Kmilner at 02:07, 28 May 2015

2015-05-28T02:07:46Z

← Older revision		Revision as of 02:07, 28 May 2015
Line 15:		Line 15:
	We calculate the hypocenter location for each rupture variation with srf_gethypo. This returns the grid point with the earliest slip in the SRF file, which is not necessarily identical to the input hypocenter location in the rupture generator.		We calculate the hypocenter location for each rupture variation with srf_gethypo. This returns the grid point with the earliest slip in the SRF file, which is not necessarily identical to the input hypocenter location in the rupture generator.

	We then calculate fractional distance along strike and down depth for each hypocenter and apply the taper. Here are the tapered hypocenters for ~~an example~~ SAF Mojave S ~~rupture~~ (Source 90, ~~Rupture~~ 0~~, M6.95~~). I chose this ~~rupture~~ as it is fairly planar with 90 degree dip. I then plot the hypocenters (colored circles) as a function of ~~latitude~~ and ~~altitude (-depth)~~. I ~~am plotting~~ the ~~actual output of src_gethypo~~ (~~lat,lon,depth~~) ~~in this plot,~~ before ~~being mapped back to the rupture surface~~. You can see how even the "uniform" hypocenters show a large amount of scatter:		We then calculate fractional distance along strike and down depth for each hypocenter and apply the taper. Here are the tapered hypocenters for two ruptures with identical surfaces but different magnitudes for a SAF Mojave S source (Source 90, Ruptures 0 & 3). I chose this source as it is fairly planar with 90 degree dip. I then plot the hypocenters (colored circles) as a function of distance along strike and distance down dip. I also plot the input hypocenters (gray circles) on the regular grid before they are perturbed. You can see how even the "uniform" hypocenters show a relatively large amount of scatter:

			{\|
			! Source 90, Rup 0
			\| [[File:CyberShake_15_4_rupture_hypos_90_0_das_ddw.png]]
			\|-
			! Source 90, Rup 3
			\| [[File:CyberShake_15_4_rupture_hypos_90_3_das_ddw.png]]
			\|}

	~~[[File:CyberShake_15_4_Hypocenter_PDF_Mojave.png]]~~

	== Hazard Curves ==		== Hazard Curves ==

Scottcal at 18:40, 27 May 2015

2015-05-27T18:40:37Z

← Older revision		Revision as of 18:40, 27 May 2015
Line 15:		Line 15:
	We calculate the hypocenter location for each rupture variation with srf_gethypo. This returns the grid point with the earliest slip in the SRF file, which is not necessarily identical to the input hypocenter location in the rupture generator.		We calculate the hypocenter location for each rupture variation with srf_gethypo. This returns the grid point with the earliest slip in the SRF file, which is not necessarily identical to the input hypocenter location in the rupture generator.

	We then calculate fractional distance along strike and down depth for each hypocenter and apply the taper. Here are the tapered hypocenters for an example SAF Mojave S rupture. I chose this rupture as it is fairly planar with 90 degree dip. I then plot the hypocenters (colored circles) as a function of latitude and altitude (-depth). I am plotting the actual output of src_gethypo (lat,lon,depth) in this plot, before being mapped back to the rupture surface. You can see how even the "uniform" hypocenters show a large amount of scatter:		We then calculate fractional distance along strike and down depth for each hypocenter and apply the taper. Here are the tapered hypocenters for an example SAF Mojave S rupture (Source 90, Rupture 0, M6.95). I chose this rupture as it is fairly planar with 90 degree dip. I then plot the hypocenters (colored circles) as a function of latitude and altitude (-depth). I am plotting the actual output of src_gethypo (lat,lon,depth) in this plot, before being mapped back to the rupture surface. You can see how even the "uniform" hypocenters show a large amount of scatter:

	[[File:CyberShake_15_4_Hypocenter_PDF_Mojave.png]]		[[File:CyberShake_15_4_Hypocenter_PDF_Mojave.png]]

Kmilner: /* Tapered Hypocenter PDF */

2015-05-27T17:27:48Z

Tapered Hypocenter PDF

← Older revision		Revision as of 17:27, 27 May 2015
Line 15:		Line 15:
	We calculate the hypocenter location for each rupture variation with srf_gethypo. This returns the grid point with the earliest slip in the SRF file, which is not necessarily identical to the input hypocenter location in the rupture generator.		We calculate the hypocenter location for each rupture variation with srf_gethypo. This returns the grid point with the earliest slip in the SRF file, which is not necessarily identical to the input hypocenter location in the rupture generator.

	We then calculate fractional distance along strike and down depth for each hypocenter and apply the taper. Here are the tapered hypocenters for an example SAF Mojave S rupture, as a function of latitude. You can see how even the "uniform" hypocenters show a large amount of scatter:		We then calculate fractional distance along strike and down depth for each hypocenter and apply the taper. Here are the tapered hypocenters for an example SAF Mojave S rupture. I chose this rupture as it is fairly planar with 90 degree dip. I then plot the hypocenters (colored circles) as a function of latitude and altitude (-depth). I am plotting the actual output of src_gethypo (lat,lon,depth) in this plot, before being mapped back to the rupture surface. You can see how even the "uniform" hypocenters show a large amount of scatter:

	[[File:CyberShake_15_4_Hypocenter_PDF_Mojave.png]]		[[File:CyberShake_15_4_Hypocenter_PDF_Mojave.png]]

Kmilner at 23:54, 26 May 2015

2015-05-26T23:54:07Z

@@ Line 15: / Line 15: @@
 We calculate the hypocenter location for each rupture variation with srf_gethypo. This returns the grid point with the earliest slip in the SRF file, which is not necessarily identical to the input hypocenter location in the rupture generator.
-We then calculate fractional distance along strike and down depth for each hypocenter and apply the taper. Here are the tapered hypocenters for an example SAF Mojave S rupture:
+We then calculate fractional distance along strike and down depth for each hypocenter and apply the taper. Here are the tapered hypocenters for an example SAF Mojave S rupture, as a function of latitude. You can see how even the "uniform" hypocenters show a large amount of scatter:
 [[File:CyberShake_15_4_Hypocenter_PDF_Mojave.png]]

Kmilner at 23:46, 26 May 2015

2015-05-26T23:46:17Z

← Older revision		Revision as of 23:46, 26 May 2015
Line 12:		Line 12:

	[[File:CyberShake_15_4_Hypocenter_pdf_theoretical.png]]		[[File:CyberShake_15_4_Hypocenter_pdf_theoretical.png]]

			We calculate the hypocenter location for each rupture variation with srf_gethypo. This returns the grid point with the earliest slip in the SRF file, which is not necessarily identical to the input hypocenter location in the rupture generator.

			We then calculate fractional distance along strike and down depth for each hypocenter and apply the taper. Here are the tapered hypocenters for an example SAF Mojave S rupture:

			[[File:CyberShake_15_4_Hypocenter_PDF_Mojave.png]]

Kmilner at 23:33, 26 May 2015

2015-05-26T23:33:34Z

← Older revision		Revision as of 23:33, 26 May 2015
Line 10:		Line 10:

	Here is the resultant probability density function (PDF)		Here is the resultant probability density function (PDF)
	[File:CyberShake_15_4_Hypocenter_pdf_theoretical.png]
			[[File:CyberShake_15_4_Hypocenter_pdf_theoretical.png]]