Channel Islands (ramp) Details

PropertyValue
Rupture Count3,645
Ruptures w/ Nonzero Rates3,575
Magnitude Range[6.73, 8.23]
Length Range[21, 959] km
Total Rate6.205049E-5 /yr
Multi-Fault Rate4.939596E-5 /yr (79.61%)
Directly-Connected Faults12
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≥6.56.205049E-5[1.52E-6, 2.11E-3]16,115.91[473.26, 656,851.84]
M≥6.65.9592017E-5[1.52E-6, 1.88E-3]16,780.77[530.87, 656,851.84]
M≥6.75.9278365E-5[1.52E-6, 1.88E-3]16,869.56[530.87, 656,851.84]
M≥6.85.497594E-5[1.52E-6, 1.88E-3]18,189.78[530.87, 656,851.84]
M≥6.95.1323525E-5[1.52E-6, 1.54E-3]19,484.24[648.79, 656,851.84]
M≥74.5923767E-5[1.52E-6, 1.52E-3]21,775.22[657.64, 656,920.96]
M≥7.14.162951E-5[9.13E-7, 1.41E-3]24,021.42[707.31, 1,094,810.58]
M≥7.23.5075314E-5[8.15E-21, 1.39E-3]28,510.08[721.37, 122,658,869,684,925,860,000]
M≥7.32.9849913E-5[0.00E0, 1.08E-3]33,500.94[922.47, ∞]
M≥7.42.1219768E-5[0.00E0, 1.08E-3]47,125.87[926.74, ∞]
M≥7.51.5259362E-5[0.00E0, 4.66E-4]65,533.54[2,143.64, ∞]
M≥7.61.0902835E-5[0.00E0, 8.90E-5]91,719.26[11,235.03, ∞]
M≥7.78.153953E-6[0.00E0, 6.58E-5]122,639.9[15,193.41, ∞]
M≥7.85.637359E-6[0.00E0, 5.22E-5]177,388.02[19,139.85, ∞]
M≥7.93.8524618E-6[0.00E0, 4.68E-5]259,574.27[21,352.95, ∞]
M≥82.1976184E-6[0.00E0, 4.68E-5]455,038.04[21,353.83, ∞]
M≥8.11.0371647E-6[0.00E0, 4.68E-5]964,167[21,353.83, ∞]
M≥8.22.103749E-7[0.00E0, 1.12E-5]4,753,418.72[89,686.1, ∞]
M≥8.31.9830514E-8[0.00E0, 5.54E-6]50,427,336.3[180,538, ∞]

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 Channel Islands (ramp) 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 86674Rupture 86104Rupture 548715

p97.5 Example

p99 Example

p100 Example

Rupture 398658Rupture 415941Rupture 245519

Connectivity

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Map

Nearby Sections

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Fault SectionFault Section
Mid Channel, 0.03 km awayNorth Channel, 5.62 km away
Oak Ridge (offshore), 0.3 km awaySanta Ynez River, 6.39 km away
Pitas Point, 0.33 km awaySisar, 7.04 km away
Red Mountain, 0.57 km awayMalibu Coast (extension), 7.67 km away
Pitas Point (upper), 1.11 km awaySanta Ynez (west), 7.67 km away
Los Alamos (extension), 1.3 km awaySanta Ynez (east), 9.58 km away
Channel Islands, 1.63 km awaySanta Cruz Island, 9.68 km away
Pitas Point (lower, Montalvo), 2.05 km awayOak Ridge (onshore), 11.45 km away
Oak Ridge (offshore, extension), 2.11 km awaySanta Cruz - San Clemente, 13.23 km away
Mission Ridge - Arroyo Parida - Santa Ana, 2.31 km awayAnacapa - Dume, 14.77 km away
Pitas Point (lower, west), 3.29 km away

Mid Channel, 0.03 km away

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NSHM23
Connected?true
Directly Connected?true
Min Co-Rupture Dist0.03 km
Min Rate-Weighted Dist0.03 km
Co-rupture Count100
Co-rupture Rate2.4087378E-6
Co-rupture Mag Range[7.06, 7.72]

Oak Ridge (offshore), 0.3 km away

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NSHM23
Connected?true
Directly Connected?true
Min Co-Rupture Dist0.3 km
Min Rate-Weighted Dist0.78 km
Co-rupture Count171
Co-rupture Rate1.2068365E-5
Co-rupture Mag Range[6.81, 7.88]

Pitas Point, 0.33 km away

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NSHM23
Connected?true
Directly Connected?true
Min Co-Rupture Dist0.33 km
Min Rate-Weighted Dist3.85 km
Co-rupture Count109
Co-rupture Rate2.7437732E-6
Co-rupture Mag Range[7.27, 7.83]

Red Mountain, 0.57 km away

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NSHM23
Connected?true
Directly Connected?true
Min Co-Rupture Dist2.22 km
Min Rate-Weighted Dist2.22 km
Co-rupture Count141
Co-rupture Rate3.3916157E-7
Co-rupture Mag Range[7.13, 7.92]

Pitas Point (upper), 1.11 km away

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NSHM23
Connected?true
Directly Connected?true
Min Co-Rupture Dist1.11 km
Min Rate-Weighted Dist1.65 km
Co-rupture Count174
Co-rupture Rate6.060978E-7
Co-rupture Mag Range[6.88, 7.86]

Los Alamos (extension), 1.3 km away

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NSHM23
Connected?true
Directly Connected?true
Min Co-Rupture Dist1.3 km
Min Rate-Weighted Dist1.3 km
Co-rupture Count712
Co-rupture Rate5.9322133E-7
Co-rupture Mag Range[7.02, 8.19]

Channel Islands, 1.63 km away

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NSHM23
Connected?true
Directly Connected?true
Min Co-Rupture Dist1.63 km
Min Rate-Weighted Dist1.63 km
Co-rupture Count606
Co-rupture Rate1.2756714E-5
Co-rupture Mag Range[7.04, 7.95]

Pitas Point (lower, Montalvo), 2.05 km away

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NSHM23
Connected?true
Directly Connected?true
Min Co-Rupture Dist2.05 km
Min Rate-Weighted Dist3.81 km
Co-rupture Count1,402
Co-rupture Rate9.987494E-6
Co-rupture Mag Range[7.27, 8.23]

Oak Ridge (offshore, extension), 2.11 km away

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NSHM23
Connected?true
Directly Connected?true
Min Co-Rupture Dist2.11 km
Min Rate-Weighted Dist2.11 km
Co-rupture Count316
Co-rupture Rate1.05594445E-5
Co-rupture Mag Range[6.75, 7.79]

Mission Ridge - Arroyo Parida - Santa Ana, 2.31 km away

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NSHM23
Connected?true
Directly Connected?true
Min Co-Rupture Dist2.31 km
Min Rate-Weighted Dist2.47 km
Co-rupture Count472
Co-rupture Rate7.692995E-6
Co-rupture Mag Range[6.80, 8.18]

Pitas Point (lower, west), 3.29 km away

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NSHM23
Connected?true
Directly Connected?true
Min Co-Rupture Dist3.29 km
Min Rate-Weighted Dist3.31 km
Co-rupture Count878
Co-rupture Rate6.1045534E-6
Co-rupture Mag Range[7.27, 8.23]

North Channel, 5.62 km away

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NSHM23
Connected?true
Directly Connected?true
Min Co-Rupture Dist5.62 km
Min Rate-Weighted Dist5.62 km
Co-rupture Count600
Co-rupture Rate6.047546E-6
Co-rupture Mag Range[6.80, 7.92]

Santa Ynez River, 6.39 km away

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NSHM23
Connected?true
Directly Connected?false
Co-rupture Count1,228
Co-rupture Rate2.554385E-6
Co-rupture Mag Range[7.05, 8.23]

Sisar, 7.04 km away

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NSHM23
Connected?true
Directly Connected?false
Co-rupture Count124
Co-rupture Rate3.7288706E-7
Co-rupture Mag Range[7.22, 7.83]

Malibu Coast (extension), 7.67 km away

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NSHM23
Connected?true
Directly Connected?false
Co-rupture Count7
Co-rupture Rate4.743637E-8
Co-rupture Mag Range[7.28, 7.44]

Santa Ynez (west), 7.67 km away

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NSHM23
Connected?true
Directly Connected?false
Co-rupture Count1,167
Co-rupture Rate3.173135E-6
Co-rupture Mag Range[7.02, 8.20]

Santa Ynez (east), 9.58 km away

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NSHM23
Connected?true
Directly Connected?false
Co-rupture Count345
Co-rupture Rate3.1371445E-7
Co-rupture Mag Range[7.27, 8.19]

Santa Cruz Island, 9.68 km away

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NSHM23
Connected?true
Directly Connected?false
Co-rupture Count4
Co-rupture Rate3.6587053E-7
Co-rupture Mag Range[7.24, 7.55]

Oak Ridge (onshore), 11.45 km away

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NSHM23
Connected?true
Directly Connected?false
Co-rupture Count31
Co-rupture Rate5.8199777E-7
Co-rupture Mag Range[7.41, 7.88]

Santa Cruz - San Clemente, 13.23 km away

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

Anacapa - Dume, 14.77 km away

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NSHM23
Connected?true
Directly Connected?false
Co-rupture Count533
Co-rupture Rate4.772666E-6
Co-rupture Mag Range[7.28, 7.95]