CyberShake Background Seismicity - Revision history

Scottcal at 19:34, 20 April 2020

2020-04-20T19:34:42Z

Scottcal at 19:33, 20 April 2020

2020-04-20T19:33:08Z

Scottcal at 21:02, 5 September 2018

2018-09-05T21:02:31Z

Scottcal at 20:57, 5 September 2018

2018-09-05T20:57:49Z

Scottcal at 20:56, 5 September 2018

2018-09-05T20:56:57Z

Scottcal at 20:56, 5 September 2018

2018-09-05T20:56:34Z

Scottcal at 20:56, 5 September 2018

2018-09-05T20:56:15Z

Kmilner at 19:33, 19 January 2018

2018-01-19T19:33:14Z

Kmilner: Created page with "'''Goal: determine the importance of background seismicity in different parts of CA to either validate it's exclusion in CyberShake or motivate an inclusion strategy.''' Calc..."

2018-01-18T23:29:03Z

Created page with "'''Goal: determine the importance of background seismicity in different parts of CA to either validate it's exclusion in CyberShake or motivate an inclusion strategy.''' Calc..."

New page

'''Goal: determine the importance of background seismicity in different parts of CA to either validate it's exclusion in CyberShake or motivate an inclusion strategy.'''

Calculation parameters:
* GMPE: NGA-West2 GMPE (average of 4 models)
* ERF: UCERF2, with and without background seismicity
* Site Effects: Vs30 is from Wills (2015), no basin depth terms included
* IMT is 2 second SA.

{|
! Model
! 10% in 50yr
! 2% in 50yr
! 1% in 50yr
|-
! Excluding Background
| [[File:ngaw2_exclude_2sec_10p_in_50.png|400px|thumb|left]]
| [[File:ngaw2_exclude_2sec_2p_in_50.png|400px|thumb|left]]
| [[File:ngaw2_exclude_2sec_1p_in_50.png|400px|thumb|left]]
|-
! Including Background
| [[File:ngaw2_include_2sec_10p_in_50.png|400px|thumb|left]]
| [[File:ngaw2_include_2sec_2p_in_50.png|400px|thumb|left]]
| [[File:ngaw2_include_2sec_1p_in_50.png|400px|thumb|left]]
|-
! Ratio Exclude/Include
| [[File:ratio_ngaw2_exclude_ngaw2_include_10p_in_50.png|400px|thumb|left]]
| [[File:ratio_ngaw2_exclude_ngaw2_include_2p_in_50.png|400px|thumb|left]]
| [[File:ratio_ngaw2_exclude_ngaw2_include_1p_in_50.png|400px|thumb|left]]
|}

@@ Line 6: / Line 6: @@
 {|
-|[[File:ucerf2_mfd_linear.png]]
+|[[File:ucerf2_mfd_linear.png|400px]]
-|[[File:ucerf2_mfd_log.png]]
+|[[File:ucerf2_mfd_log.png|400px]]
 |}

← Older revision		Revision as of 19:33, 20 April 2020
Line 2:		Line 2:

	== UCERF2 ==		== UCERF2 ==
		+
		+	To illustrate what events UCERF2 includes in background seismicity, below are plots of the magnitude-frequency distribution for the UCERF2 ERF in both linear and log scale. Blue is the full UCERF2 distribution, and black is the on-fault ERF used in CyberShake. All UCERF2 finite-fault ruptures are included in CyberShake, regardless of magnitude, though the GR distribution applied to type B faults is only for M>=6.5, and floating rupture sources start at M6.5, which is why there are fewer CyberShake events for M<6.5.
		+
		+	{\|
		+	\|[[File:ucerf2_mfd_linear.png]]
		+	\|[[File:ucerf2_mfd_log.png]]
		+	\|}
		+

	Calculation parameters:		Calculation parameters:

@@ Line 66: / Line 66: @@
 | [[File:ratio_ucerf3_supra_only_vs_sub+supra+off_10p_in_50.png|400px|thumb|left]]
 | [[File:ratio_ucerf3_supra_only_vs_sub+supra+off_2p_in_50.png|400px|thumb|left]]
-| [[Media:ratio_ucerf3_supra_only_vs_sub+supra+off_1p_in_50.png|400px|thumb|left]]
+| [[File:ratio_ucerf3_supra_only_vs_sub+supra+off_1p_in_50.png|400px|thumb|left]]
 |-
 ! Ratio Supra+Sub/Complete

@@ Line 64: / Line 64: @@
 |-
 ! Ratio Supra-Only/Complete
-| [[Media:ratio_ucerf3_supra_only_vs_sub+supra+off_10p_in_50.png|400px|thumb|left]]
+| [[File:ratio_ucerf3_supra_only_vs_sub+supra+off_10p_in_50.png|400px|thumb|left]]
 | [[File:ratio_ucerf3_supra_only_vs_sub+supra+off_2p_in_50.png|400px|thumb|left]]
-| [[File:ratio_ucerf3_supra_only_vs_sub+supra+off_1p_in_50.png|400px|thumb|left]]
+| [[Media:ratio_ucerf3_supra_only_vs_sub+supra+off_1p_in_50.png|400px|thumb|left]]
 |-
 ! Ratio Supra+Sub/Complete

@@ Line 64: / Line 64: @@
 |-
 ! Ratio Supra-Only/Complete
-| [[File:ratio_ucerf3_supra_only_vs_sub+supra+off_10p_in_50.png|400px|thumb|left]]
+| [[Media:ratio_ucerf3_supra_only_vs_sub+supra+off_10p_in_50.png|400px|thumb|left]]
 | [[File:ratio_ucerf3_supra_only_vs_sub+supra+off_2p_in_50.png|400px|thumb|left]]
 | [[File:ratio_ucerf3_supra_only_vs_sub+supra+off_1p_in_50.png|400px|thumb|left]]

@@ Line 1: / Line 1: @@
 '''Goal: determine the importance of background seismicity in different parts of CA to either validate it's exclusion in CyberShake or motivate an inclusion strategy.'''
 Calculation parameters:
@@ Line 5: / Line 7: @@
 * ERF: UCERF2, with and without background seismicity
 * Site Effects: Vs30 is from Wills (2015), no basin depth terms included
-* IMT is 2 second SA.
+* IMT: 2 second SA.
 {|
@@ Line 27: / Line 29: @@
 | [[File:ratio_ngaw2_exclude_ngaw2_include_2p_in_50.png|400px|thumb|left]]
 | [[File:ratio_ngaw2_exclude_ngaw2_include_1p_in_50.png|400px|thumb|left]]
 |}