Homestead Valley Details

PropertyValue
Rupture Count6,094
Ruptures w/ Nonzero Rates5,695
Magnitude Range[6.47, 8.33]
Length Range[15, 1,311] km
Total Rate4.0127104E-4 /yr
Multi-Fault Rate3.0800365E-4 /yr (76.76%)
Directly-Connected Faults6
All Co-Rupturing Faults60

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≥6.34.0127104E-4[1.42E-5, 1.33E-3]2,492.08[750.93, 70,647.5]
M≥6.43.9235436E-4[1.42E-5, 1.28E-3]2,548.72[782.69, 70,647.5]
M≥6.53.8552735E-4[1.42E-5, 1.17E-3]2,593.85[856.18, 70,647.5]
M≥6.63.6326092E-4[1.42E-5, 1.05E-3]2,752.84[956.89, 70,647.5]
M≥6.73.3551242E-4[8.60E-6, 9.38E-4]2,980.52[1,066.62, 116,314.24]
M≥6.83.1477143E-4[8.60E-6, 8.12E-4]3,176.91[1,231.75, 116,314.24]
M≥6.92.880532E-4[5.81E-6, 7.55E-4]3,471.58[1,323.72, 172,200.03]
M≥72.5655585E-4[4.95E-7, 7.50E-4]3,897.79[1,333.71, 2,018,469.75]
M≥7.12.2064868E-4[2.56E-7, 6.00E-4]4,532.09[1,666.58, 3,909,303.9]
M≥7.21.7761994E-4[2.28E-21, 5.50E-4]5,630[1,818.08, 439,289,905,383,222,800,000]
M≥7.31.4360531E-4[0.00E0, 5.18E-4]6,963.53[1,932.32, ∞]
M≥7.41.20790755E-4[0.00E0, 4.44E-4]8,278.78[2,253.33, ∞]
M≥7.51.0115576E-4[0.00E0, 3.88E-4]9,885.74[2,575.4, ∞]
M≥7.67.324814E-5[0.00E0, 3.71E-4]13,652.22[2,692.88, ∞]
M≥7.74.4362416E-5[0.00E0, 2.43E-4]22,541.6[4,116.56, ∞]
M≥7.83.0841762E-5[0.00E0, 2.42E-4]32,423.57[4,133.77, ∞]
M≥7.92.3106862E-5[0.00E0, 2.19E-4]43,277.19[4,574.77, ∞]
M≥81.6552884E-5[0.00E0, 1.39E-4]60,412.43[7,194.24, ∞]
M≥8.13.981104E-6[0.00E0, 6.53E-5]251,186.62[15,311.59, ∞]
M≥8.27.468612E-7[0.00E0, 4.29E-5]1,338,936.91[23,331.78, ∞]
M≥8.31.7700569E-7[0.00E0, 2.52E-5]5,649,535.86[39,682.54, ∞]
M≥8.45.746718E-8[0.00E0, 2.12E-5]17,401,236.63[47,058.82, ∞]

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 Homestead Valley 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 77508Rupture 163060Rupture 55406

p97.5 Example

p99 Example

p100 Example

Rupture 359233Rupture 379933Rupture 247540

Connectivity

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Map

Nearby Sections

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Fault Section
Kickapoo, 0.14 km away
Emerson - Copper Mountain, 0.57 km away
Pinto Mountain, 2.03 km away
Johnson Valley (north), 3.04 km away
Burnt Mountain, 4.25 km away
Camp Rock, 7.82 km away
Joshua Tree (seismicity), 8.5 km away
Eureka Peak, 8.53 km away
North Frontal (east), 8.73 km away
Calico - Hidalgo, 10.16 km away

Kickapoo, 0.14 km away

(back to table)

NSHM23
Connected?true
Directly Connected?true
Min Co-Rupture Dist0.14 km
Min Rate-Weighted Dist0.14 km
Co-rupture Count192
Co-rupture Rate6.661875E-5
Co-rupture Mag Range[6.62, 7.60]

Emerson - Copper Mountain, 0.57 km away

(back to table)

NSHM23
Connected?true
Directly Connected?true
Min Co-Rupture Dist0.57 km
Min Rate-Weighted Dist0.57 km
Co-rupture Count4,224
Co-rupture Rate9.1992144E-5
Co-rupture Mag Range[6.74, 8.33]

Pinto Mountain, 2.03 km away

(back to table)

NSHM23
Connected?true
Directly Connected?true
Min Co-Rupture Dist2.03 km
Min Rate-Weighted Dist2.61 km
Co-rupture Count2,795
Co-rupture Rate1.4672228E-4
Co-rupture Mag Range[6.79, 8.32]

Johnson Valley (north), 3.04 km away

(back to table)

NSHM23
Connected?true
Directly Connected?true
Min Co-Rupture Dist3.04 km
Min Rate-Weighted Dist5.11 km
Co-rupture Count1,737
Co-rupture Rate5.377127E-5
Co-rupture Mag Range[6.87, 8.33]

Burnt Mountain, 4.25 km away

(back to table)

NSHM23
Connected?true
Directly Connected?false
Co-rupture Count938
Co-rupture Rate1.944102E-5
Co-rupture Mag Range[6.97, 8.33]

Camp Rock, 7.82 km away

(back to table)

NSHM23
Connected?true
Directly Connected?false
Co-rupture Count3,122
Co-rupture Rate6.991653E-5
Co-rupture Mag Range[6.87, 8.33]

Joshua Tree (seismicity), 8.5 km away

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NSHM23
Connected?true
Directly Connected?false
Co-rupture Count46
Co-rupture Rate8.194321E-7
Co-rupture Mag Range[6.93, 7.61]

Eureka Peak, 8.53 km away

(back to table)

NSHM23
Connected?true
Directly Connected?false
Co-rupture Count876
Co-rupture Rate1.6614276E-5
Co-rupture Mag Range[6.93, 8.33]

North Frontal (east), 8.73 km away

(back to table)

NSHM23
Connected?true
Directly Connected?true
Min Co-Rupture Dist8.73 km
Min Rate-Weighted Dist8.77 km
Co-rupture Count749
Co-rupture Rate3.2173022E-5
Co-rupture Mag Range[6.96, 8.33]

Calico - Hidalgo, 10.16 km away

(back to table)

NSHM23
Connected?true
Directly Connected?true
Min Co-Rupture Dist10.16 km
Min Rate-Weighted Dist10.18 km
Co-rupture Count509
Co-rupture Rate2.4978712E-5
Co-rupture Mag Range[6.73, 7.81]