Walnut Creek Details

PropertyValue
Rupture Count1,054
Ruptures w/ Nonzero Rates1,045
Magnitude Range[6.27, 7.93]
Length Range[10, 363] km
Total Rate6.867739E-5 /yr
Multi-Fault Rate4.645016E-5 /yr (67.64%)
Directly-Connected Faults5
All Co-Rupturing Faults73

Table Of Contents

Magnitude-Frequency Distribution

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Fault magnitude-frequency distributions. The left plot shows incremental rates (rates within each magnitude bin), and the right plot shows cumulative rates (rates at or above the given magnitude).

The smaller bottom panel shows the distribution of available ruptures with a green histogram and is not rate-weighted. It only shows the raw count of ruptures of various magnitudes available in the rupture set.

IncrementalCumulative
Incremental PlotCumulative Plot

NOTE: This solution has a distribution of magnitudes and rates for each ruptures, and is likely a branch-averaged solution. That full distribution for each rupture is used to construct the MFDs above, but only mean magnitudes are used in the lower panel showing available and utilized magnitudes, and thus there may be bins with nonzero rates in the top panel where no mgnitudes are shown in the bottom. The magnitude rage at the top of this page also only considers mean magnitudes.

Cumulative Rates and Recurrence Intervals Table

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MagnitudeParticipation RateRangeParticipation RI (yrs)Range
M≥6.16.867739E-5[3.34E-6, 6.29E-4]14,560.83[1,589.07, 299,000.82]
M≥6.26.4027394E-5[3.34E-6, 4.48E-4]15,618.31[2,230.65, 299,000.82]
M≥6.36.207897E-5[3.34E-6, 4.48E-4]16,108.51[2,230.65, 299,000.82]
M≥6.45.395807E-5[2.96E-20, 2.96E-4]18,532.91[3,376.1, 33,731,189,163,354,608,000]
M≥6.55.0512823E-5[0.00E0, 2.61E-4]19,796.95[3,832.89, ∞]
M≥6.64.581368E-5[0.00E0, 1.80E-4]21,827.54[5,550.16, ∞]
M≥6.74.2087202E-5[0.00E0, 1.70E-4]23,760.19[5,896.52, ∞]
M≥6.83.472184E-5[0.00E0, 1.35E-4]28,800.32[7,427.65, ∞]
M≥6.93.1029456E-5[0.00E0, 1.04E-4]32,227.44[9,642.98, ∞]
M≥72.8336606E-5[0.00E0, 8.22E-5]35,290.04[12,160.73, ∞]
M≥7.12.5149166E-5[0.00E0, 7.75E-5]39,762.75[12,902.08, ∞]
M≥7.22.2162829E-5[0.00E0, 6.25E-5]45,120.59[16,011.02, ∞]
M≥7.31.83647E-5[0.00E0, 6.00E-5]54,452.29[16,655.53, ∞]
M≥7.41.5396208E-5[0.00E0, 4.36E-5]64,951.06[22,936.83, ∞]
M≥7.51.2084791E-5[0.00E0, 4.09E-5]82,748.64[24,432.15, ∞]
M≥7.69.467842E-6[0.00E0, 4.09E-5]105,620.69[24,437.93, ∞]
M≥7.76.3228954E-6[0.00E0, 4.09E-5]158,155.39[24,437.93, ∞]
M≥7.82.6715838E-6[0.00E0, 3.68E-5]374,309.79[27,158.42, ∞]
M≥7.96.7183356E-7[0.00E0, 1.88E-5]1,488,463.95[53,304.9, ∞]
M≥84.622654E-8[0.00E0, 7.29E-6]21,632,594.96[137,155.39, ∞]

Individual Branch Nucleation MFDs

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Individual nucleation MFDs across 2250 logic tree branches. The individual branches with the highest and lowest total rate are highlighted, as are the mean and median models.

IncrementalCumulative
Incremental PlotCumulative Plot

Along-Strike Values

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Along-strike plot

Moment-Rates and b-Values

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Along-strike plot

Length Distributions

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Fault rupture length distributions. The top panel shows the raw count of ruptures in which Walnut Creek participates in the rupture set as a function of rupture length. The bottom two panels show the rate-weighted distribution (i.e., the distribution of lengths in the solution). The middle panel is plotted with a linear scale, and the bottom paney a logarithmic scale.

Length Hist

Rupture Examples

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The following table includes example ruptures, selected at various percentiles from the rate-weighted rupture length distribution. So, for example, the rupture with length closest to the median length (again, rate-weighted) is plotted in the first column ('p50 Example'). The longest participating rupture is plotted last ('p100 Example').

It is important to note that the rupture examples here may not be representative, and may have negligible rates. They are included for illustration purposes only.

p50 Example

p75 Example

p90 Example

Rupture 537086Rupture 129574Rupture 536986

p97.5 Example

p99 Example

p100 Example

Rupture 536853Rupture 126871Rupture 79126

Connectivity

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Map

Nearby Sections

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Fault Section
San Jose, 0.08 km away
Puente Hills (Coyote Hills), 0.24 km away
Whittier, 1.84 km away
Richfield, 2.16 km away
Elysian Park (lower), 2.38 km away
Sierra Madre, 4.36 km away
Puente Hills (Santa Fe Springs), 7.14 km away
Cucamonga, 7.97 km away
Compton, 8.45 km away
Chino, 9.37 km away
Peralta Hills, 11.43 km away
Puente Hills (Los Angeles), 11.84 km away
Elysian Park (upper), 13.45 km away
Raymond, 14.28 km away

San Jose, 0.08 km away

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NSHM23
Connected?true
Directly Connected?true
Min Co-Rupture Dist0.28 km
Min Rate-Weighted Dist0.28 km
Co-rupture Count37
Co-rupture Rate9.279737E-6
Co-rupture Mag Range[6.62, 7.50]

Puente Hills (Coyote Hills), 0.24 km away

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NSHM23
Connected?true
Directly Connected?false
Co-rupture Count167
Co-rupture Rate1.9741126E-6
Co-rupture Mag Range[7.03, 7.86]

Whittier, 1.84 km away

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NSHM23
Connected?true
Directly Connected?true
Min Co-Rupture Dist1.84 km
Min Rate-Weighted Dist1.84 km
Co-rupture Count741
Co-rupture Rate3.813005E-5
Co-rupture Mag Range[6.59, 7.93]

Richfield, 2.16 km away

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NSHM23
Connected?true
Directly Connected?true
Min Co-Rupture Dist2.16 km
Min Rate-Weighted Dist2.16 km
Co-rupture Count266
Co-rupture Rate2.4747585E-6
Co-rupture Mag Range[6.55, 7.93]

Elysian Park (lower), 2.38 km away

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NSHM23
Connected?true
Directly Connected?true
Min Co-Rupture Dist2.38 km
Min Rate-Weighted Dist2.38 km
Co-rupture Count17
Co-rupture Rate1.7874372E-7
Co-rupture Mag Range[6.85, 7.49]

Sierra Madre, 4.36 km away

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NSHM23
Connected?true
Directly Connected?true
Min Co-Rupture Dist4.73 km
Min Rate-Weighted Dist4.73 km
Co-rupture Count295
Co-rupture Rate5.2527635E-6
Co-rupture Mag Range[6.88, 7.93]

Puente Hills (Santa Fe Springs), 7.14 km away

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NSHM23
Connected?true
Directly Connected?false
Co-rupture Count381
Co-rupture Rate5.8040923E-6
Co-rupture Mag Range[6.81, 7.89]

Cucamonga, 7.97 km away

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NSHM23
Connected?false
Directly Connected?false
Co-rupture Count0
Co-rupture RateN/A

Compton, 8.45 km away

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NSHM23
Connected?true
Directly Connected?false
Co-rupture Count71
Co-rupture Rate2.16524E-6
Co-rupture Mag Range[7.31, 7.89]

Chino, 9.37 km away

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NSHM23
Connected?true
Directly Connected?false
Co-rupture Count4
Co-rupture Rate3.02782E-6
Co-rupture Mag Range[7.15, 7.23]

Peralta Hills, 11.43 km away

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NSHM23
Connected?true
Directly Connected?false
Co-rupture Count16
Co-rupture Rate9.699579E-7
Co-rupture Mag Range[7.16, 7.65]

Puente Hills (Los Angeles), 11.84 km away

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NSHM23
Connected?true
Directly Connected?false
Co-rupture Count71
Co-rupture Rate3.4642503E-6
Co-rupture Mag Range[7.06, 7.83]

Elysian Park (upper), 13.45 km away

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NSHM23
Connected?true
Directly Connected?false
Co-rupture Count6
Co-rupture Rate2.372818E-7
Co-rupture Mag Range[7.23, 7.67]

Raymond, 14.28 km away

(back to table)

NSHM23
Connected?true
Directly Connected?false
Co-rupture Count24
Co-rupture Rate1.2422687E-6
Co-rupture Mag Range[7.44, 7.82]