Santa Ynez River Details

PropertyValue
Rupture Count21,669
Ruptures w/ Nonzero Rates20,453
Magnitude Range[6.27, 8.35]
Length Range[12, 1,325] km
Total Rate3.8514234E-4 /yr
Multi-Fault Rate2.3296935E-4 /yr (60.49%)
Directly-Connected Faults9
All Co-Rupturing Faults88

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≥6.13.8514234E-4[0.00E0, 2.98E-3]2,596.44[336.01, ∞]
M≥6.23.5990725E-4[0.00E0, 2.64E-3]2,778.49[379.19, ∞]
M≥6.33.482437E-4[0.00E0, 2.14E-3]2,871.55[466.56, ∞]
M≥6.43.1200598E-4[0.00E0, 1.64E-3]3,205.07[610.09, ∞]
M≥6.52.9817154E-4[0.00E0, 1.33E-3]3,353.77[750.65, ∞]
M≥6.62.7856414E-4[0.00E0, 1.17E-3]3,589.84[857.78, ∞]
M≥6.72.58556E-4[0.00E0, 9.99E-4]3,867.63[1,001.2, ∞]
M≥6.82.399005E-4[0.00E0, 9.49E-4]4,168.39[1,053.8, ∞]
M≥6.92.2531797E-4[0.00E0, 8.71E-4]4,438.17[1,147.49, ∞]
M≥72.0064498E-4[0.00E0, 7.32E-4]4,983.93[1,366.86, ∞]
M≥7.11.7580311E-4[0.00E0, 7.30E-4]5,688.18[1,369.7, ∞]
M≥7.21.5896311E-4[0.00E0, 6.38E-4]6,290.77[1,567.82, ∞]
M≥7.31.4969792E-4[0.00E0, 6.30E-4]6,680.12[1,586.46, ∞]
M≥7.41.3427247E-4[0.00E0, 5.96E-4]7,447.54[1,677, ∞]
M≥7.51.1177003E-4[0.00E0, 5.96E-4]8,946.94[1,677, ∞]
M≥7.69.196006E-5[0.00E0, 5.81E-4]10,874.29[1,720.9, ∞]
M≥7.77.253124E-5[0.00E0, 3.81E-4]13,787.16[2,623.82, ∞]
M≥7.85.8246304E-5[0.00E0, 3.53E-4]17,168.47[2,835.75, ∞]
M≥7.94.4886845E-5[0.00E0, 2.72E-4]22,278.24[3,681.61, ∞]
M≥83.3045857E-5[0.00E0, 2.35E-4]30,260.98[4,255.32, ∞]
M≥8.11.30312055E-5[0.00E0, 2.35E-4]76,738.87[4,255.32, ∞]
M≥8.22.0753387E-6[0.00E0, 1.17E-4]481,849.07[8,539.71, ∞]
M≥8.31.280682E-7[0.00E0, 6.20E-5]7,808,340.01[16,121.23, ∞]
M≥8.48.483265E-10[0.00E0, 3.22E-6]1,178,791,399.9[310,173.7, ∞]

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

(top)

Fault rupture length distributions. The top panel shows the raw count of ruptures in which Santa Ynez River 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 339636Rupture 337158Rupture 484394

p97.5 Example

p99 Example

p100 Example

Rupture 432077Rupture 445001Rupture 248903

Connectivity

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Map

Nearby Sections

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Fault Section
Santa Ynez (west), 0.07 km away
Los Alamos, 0.1 km away
Hosgri (extension), 0.15 km away
Los Alamos (extension), 0.28 km away
Pitas Point (lower, west), 0.31 km away
Red Mountain, 4.27 km away
San Luis Range (extended), 6.16 km away
Channel Islands (ramp), 6.39 km away
Lions Head, 6.55 km away
Pitas Point (upper), 7.24 km away
Pitas Point (lower, Montalvo), 8.87 km away
North Channel, 8.88 km away
Mid Channel, 9.95 km away
Casmalia, 11.84 km away
Mission Ridge - Arroyo Parida - Santa Ana, 12.67 km away

Santa Ynez (west), 0.07 km away

(back to table)

NSHM23
Connected?true
Directly Connected?true
Min Co-Rupture Dist0.07 km
Min Rate-Weighted Dist0.07 km
Co-rupture Count8,705
Co-rupture Rate8.679178E-5
Co-rupture Mag Range[6.50, 8.35]

Los Alamos, 0.1 km away

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NSHM23
Connected?true
Directly Connected?true
Min Co-Rupture Dist0.1 km
Min Rate-Weighted Dist5.24 km
Co-rupture Count454
Co-rupture Rate9.360246E-6
Co-rupture Mag Range[6.86, 8.19]

Hosgri (extension), 0.15 km away

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NSHM23
Connected?true
Directly Connected?true
Min Co-Rupture Dist0.15 km
Min Rate-Weighted Dist0.15 km
Co-rupture Count8,371
Co-rupture Rate7.4104704E-5
Co-rupture Mag Range[6.42, 8.21]

Los Alamos (extension), 0.28 km away

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NSHM23
Connected?true
Directly Connected?true
Min Co-Rupture Dist0.28 km
Min Rate-Weighted Dist0.3 km
Co-rupture Count2,848
Co-rupture Rate1.0728292E-5
Co-rupture Mag Range[6.79, 8.19]

Pitas Point (lower, west), 0.31 km away

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NSHM23
Connected?true
Directly Connected?true
Min Co-Rupture Dist0.31 km
Min Rate-Weighted Dist0.39 km
Co-rupture Count6,672
Co-rupture Rate1.0724388E-4
Co-rupture Mag Range[6.82, 8.23]

Red Mountain, 4.27 km away

(back to table)

NSHM23
Connected?true
Directly Connected?true
Min Co-Rupture Dist4.27 km
Min Rate-Weighted Dist4.4 km
Co-rupture Count4,892
Co-rupture Rate2.8537372E-5
Co-rupture Mag Range[6.66, 8.21]

San Luis Range (extended), 6.16 km away

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NSHM23
Connected?true
Directly Connected?true
Min Co-Rupture Dist9.2 km
Min Rate-Weighted Dist9.2 km
Co-rupture Count1,714
Co-rupture Rate4.826308E-6
Co-rupture Mag Range[6.88, 8.19]

Channel Islands (ramp), 6.39 km away

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NSHM23
Connected?true
Directly Connected?false
Co-rupture Count1,228
Co-rupture Rate2.6996438E-6
Co-rupture Mag Range[7.05, 8.23]

Lions Head, 6.55 km away

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NSHM23
Connected?true
Directly Connected?true
Min Co-Rupture Dist7.11 km
Min Rate-Weighted Dist7.73 km
Co-rupture Count269
Co-rupture Rate1.0907809E-6
Co-rupture Mag Range[6.79, 8.13]

Pitas Point (upper), 7.24 km away

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NSHM23
Connected?true
Directly Connected?false
Co-rupture Count4,301
Co-rupture Rate3.1608542E-5
Co-rupture Mag Range[6.76, 8.22]

Pitas Point (lower, Montalvo), 8.87 km away

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NSHM23
Connected?true
Directly Connected?false
Co-rupture Count5,919
Co-rupture Rate2.9112898E-5
Co-rupture Mag Range[7.18, 8.23]

North Channel, 8.88 km away

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NSHM23
Connected?true
Directly Connected?false
Co-rupture Count5,928
Co-rupture Rate1.1254478E-5
Co-rupture Mag Range[6.61, 8.21]

Mid Channel, 9.95 km away

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NSHM23
Connected?true
Directly Connected?false
Co-rupture Count385
Co-rupture Rate9.718714E-6
Co-rupture Mag Range[7.14, 8.20]

Casmalia, 11.84 km away

(back to table)

NSHM23
Connected?true
Directly Connected?true
Min Co-Rupture Dist11.84 km
Min Rate-Weighted Dist12.32 km
Co-rupture Count3,718
Co-rupture Rate1.2512749E-5
Co-rupture Mag Range[6.59, 8.23]

Mission Ridge - Arroyo Parida - Santa Ana, 12.67 km away

(back to table)

NSHM23
Connected?true
Directly Connected?false
Co-rupture Count2,532
Co-rupture Rate2.4033465E-5
Co-rupture Mag Range[6.79, 8.18]