Little Salmon (onshore) Details

PropertyValue
Rupture Count284
Ruptures w/ Nonzero Rates280
Magnitude Range[6.85, 7.88]
Length Range[23, 341] km
Total Rate5.554638E-4 /yr
Multi-Fault Rate3.5150323E-4 /yr (63.28%)
Directly-Connected Faults5
All Co-Rupturing Faults10

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≥6.75.554638E-4[1.12E-4, 3.97E-3]1,800.3[251.95, 8,896.13]
M≥6.85.5417255E-4[9.92E-5, 3.97E-3]1,804.49[251.95, 10,083.01]
M≥6.95.510593E-4[8.51E-5, 3.97E-3]1,814.69[251.95, 11,755.34]
M≥74.707361E-4[-1.36E-20, 3.43E-3]2,124.33[291.89, -7.3786976E19]
M≥7.14.2636733E-4[0.00E0, 3.43E-3]2,345.4[291.89, ∞]
M≥7.23.5332484E-4[0.00E0, 3.14E-3]2,830.26[318.34, ∞]
M≥7.33.1653332E-4[0.00E0, 3.11E-3]3,159.23[321.95, ∞]
M≥7.42.2075491E-4[0.00E0, 3.01E-3]4,529.91[332.19, ∞]
M≥7.51.3021345E-4[0.00E0, 1.47E-3]7,679.7[678.22, ∞]
M≥7.67.249694E-5[0.00E0, 7.15E-4]13,793.68[1,398.6, ∞]
M≥7.75.3344276E-5[0.00E0, 6.34E-4]18,746.15[1,576.54, ∞]
M≥7.83.4692937E-5[0.00E0, 6.18E-4]28,824.31[1,618.73, ∞]
M≥7.94.3763134E-6[0.00E0, 2.66E-4]228,502.82[3,759.4, ∞]

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 Little Salmon (onshore) 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 125815Rupture 236487Rupture 535412

p97.5 Example

p99 Example

p100 Example

Rupture 190507Rupture 191315Rupture 190509

Connectivity

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Map

Nearby Sections

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Fault Section
Little Salmon (offshore), 0 km away
Eaton Roughs, 0.29 km away
Table Bluff, 0.3 km away
Fickle Hill, 8.36 km away
Mad River, 9.25 km away
Russ, 9.91 km away
McKinleyville, 10.28 km away
Trinidad, 13.24 km away

Little Salmon (offshore), 0 km away

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NSHM23
Connected?true
Directly Connected?true
Min Co-Rupture Dist0 km
Min Rate-Weighted Dist0 km
Co-rupture Count52
Co-rupture Rate1.8851631E-4
Co-rupture Mag Range[7.18, 7.80]

Eaton Roughs, 0.29 km away

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NSHM23
Connected?true
Directly Connected?true
Min Co-Rupture Dist0.29 km
Min Rate-Weighted Dist0.68 km
Co-rupture Count234
Co-rupture Rate1.724263E-4
Co-rupture Mag Range[7.01, 7.88]

Table Bluff, 0.3 km away

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NSHM23
Connected?true
Directly Connected?true
Min Co-Rupture Dist0.3 km
Min Rate-Weighted Dist0.3 km
Co-rupture Count31
Co-rupture Rate8.671642E-5
Co-rupture Mag Range[7.05, 7.83]

Fickle Hill, 8.36 km away

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NSHM23
Connected?true
Directly Connected?false
Co-rupture Count40
Co-rupture Rate3.073936E-5
Co-rupture Mag Range[7.42, 7.80]

Mad River, 9.25 km away

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NSHM23
Connected?true
Directly Connected?false
Co-rupture Count85
Co-rupture Rate3.9141527E-5
Co-rupture Mag Range[7.36, 7.80]

Russ, 9.91 km away

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NSHM23
Connected?true
Directly Connected?true
Min Co-Rupture Dist9.91 km
Min Rate-Weighted Dist10.03 km
Co-rupture Count55
Co-rupture Rate3.09649E-5
Co-rupture Mag Range[7.07, 7.88]

McKinleyville, 10.28 km away

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NSHM23
Connected?true
Directly Connected?true
Min Co-Rupture Dist10.28 km
Min Rate-Weighted Dist10.28 km
Co-rupture Count53
Co-rupture Rate4.0589225E-6
Co-rupture Mag Range[7.23, 7.63]

Trinidad, 13.24 km away

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NSHM23
Connected?true
Directly Connected?false
Co-rupture Count85
Co-rupture Rate3.4785793E-5
Co-rupture Mag Range[7.37, 7.80]