San Andreas (Coachella) Details

PropertyValue
Rupture Count63,335
Ruptures w/ Nonzero Rates55,590
Magnitude Range[6.11, 8.38]
Length Range[11, 1,469] km
Total Rate0.009108878 /yr
Multi-Fault Rate0.005922115 /yr (65.01%)
Directly-Connected Faults3
All Co-Rupturing Faults171

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≥5.80.009108878[2.20E-3, 4.80E-2]109.78[20.83, 453.81]
M≥5.90.009061769[2.20E-3, 4.80E-2]110.35[20.83, 453.81]
M≥60.00895865[2.20E-3, 4.80E-2]111.62[20.83, 453.81]
M≥6.10.008516002[2.20E-3, 4.80E-2]117.43[20.83, 453.81]
M≥6.20.008153299[2.14E-3, 3.06E-2]122.65[32.65, 466.5]
M≥6.30.007529637[2.14E-3, 3.06E-2]132.81[32.65, 466.5]
M≥6.40.007188762[2.08E-3, 2.54E-2]139.11[39.33, 480.77]
M≥6.50.006863731[2.07E-3, 2.17E-2]145.69[46.14, 482.31]
M≥6.60.006530264[2.07E-3, 1.75E-2]153.13[57.14, 484.18]
M≥6.70.006228478[2.02E-3, 1.49E-2]160.55[67.3, 494.65]
M≥6.80.0060141543[1.96E-3, 1.49E-2]166.27[67.3, 509.54]
M≥6.90.0058142967[1.96E-3, 1.49E-2]171.99[67.3, 509.54]
M≥70.0056606675[1.79E-3, 1.49E-2]176.66[67.3, 558.39]
M≥7.10.005528084[1.63E-3, 1.46E-2]180.89[68.4, 612.44]
M≥7.20.0051665884[1.63E-3, 1.29E-2]193.55[77.62, 612.44]
M≥7.30.0046573407[1.63E-3, 8.75E-3]214.71[114.23, 612.44]
M≥7.40.0033558921[9.62E-5, 7.29E-3]297.98[137.23, 10,396.96]
M≥7.50.001883506[6.12E-17, 5.48E-3]530.92[182.38, 16,339,011,579,902,172]
M≥7.67.8455906E-4[6.03E-17, 2.75E-3]1,274.6[363.56, 16,570,008,560,663,346]
M≥7.75.6104845E-4[3.52E-17, 2.52E-3]1,782.38[397.49, 28,417,164,362,638,092]
M≥7.84.3066125E-4[6.22E-31, 2.27E-3]2,322.01[441.27, 1,606,527,493,358,548,200,000,000,000,000]
M≥7.93.4095245E-4[0.00E0, 1.80E-3]2,932.96[556.54, ∞]
M≥82.53741E-4[0.00E0, 1.67E-3]3,941.03[599.95, ∞]
M≥8.11.13627284E-4[0.00E0, 1.29E-3]8,800.7[772.38, ∞]
M≥8.21.975519E-5[0.00E0, 7.64E-4]50,619.61[1,308.81, ∞]
M≥8.31.7155292E-6[0.00E0, 2.38E-4]582,910.53[4,204.28, ∞]
M≥8.45.5340627E-7[0.00E0, 1.54E-4]1,806,990.74[6,472.49, ∞]
M≥8.56.673929E-8[0.00E0, 4.42E-5]14,983,676.95[22,614.2, ∞]

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 San Andreas (Coachella) 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 374269Rupture 195958Rupture 139063

p97.5 Example

p99 Example

p100 Example

Rupture 44381Rupture 381935Rupture 247880

Connectivity

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Map

Nearby Sections

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Fault Section
Mill Creek (San Andreas, north branch), 0 km away
San Andreas (San Gorgonio Pass - Garnet Hill), 0.05 km away
Brawley, 0.79 km away
Extra, 0.87 km away
Elmore Ranch, 8.51 km away
Blue Cut, 10.76 km away
San Andreas (Banning), 14.14 km away

Mill Creek (San Andreas, north branch), 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 Count77,967
Co-rupture Rate0.0014418224
Co-rupture Mag Range[6.75, 8.38]

San Andreas (San Gorgonio Pass - Garnet Hill), 0.05 km away

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NSHM23
Connected?true
Directly Connected?false
Co-rupture Count2,568
Co-rupture Rate4.7965386E-4
Co-rupture Mag Range[7.18, 8.35]

Brawley, 0.79 km away

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NSHM23
Connected?true
Directly Connected?true
Min Co-Rupture Dist0.79 km
Min Rate-Weighted Dist0.79 km
Co-rupture Count32,341
Co-rupture Rate0.0054727388
Co-rupture Mag Range[6.53, 8.38]

Extra, 0.87 km away

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NSHM23
Connected?true
Directly Connected?true
Min Co-Rupture Dist0.87 km
Min Rate-Weighted Dist0.87 km
Co-rupture Count10,309
Co-rupture Rate2.5808695E-4
Co-rupture Mag Range[6.58, 8.38]

Elmore Ranch, 8.51 km away

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

Blue Cut, 10.76 km away

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NSHM23
Connected?true
Directly Connected?false
Co-rupture Count371
Co-rupture Rate2.5170615E-5
Co-rupture Mag Range[6.91, 7.70]

San Andreas (Banning), 14.14 km away

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NSHM23
Connected?true
Directly Connected?false
Co-rupture Count14,306
Co-rupture Rate3.607088E-4
Co-rupture Mag Range[6.92, 8.35]