Eureka Peak Details

PropertyValue
Rupture Count5,090
Ruptures w/ Nonzero Rates4,658
Magnitude Range[6.36, 8.36]
Length Range[13, 1,350] km
Total Rate4.6106745E-4 /yr
Multi-Fault Rate3.0149557E-4 /yr (65.39%)
Directly-Connected Faults6
All Co-Rupturing Faults87

Table Of Contents

Magnitude-Frequency Distribution

(top)

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

(top)

MagnitudeParticipation RateRangeParticipation RI (yrs)Range
M≥6.24.6106745E-4[8.13E-5, 1.55E-2]2,168.88[64.44, 12,297.64]
M≥6.34.438982E-4[8.13E-5, 1.22E-2]2,252.77[81.74, 12,297.64]
M≥6.44.3450997E-4[8.13E-5, 1.19E-2]2,301.44[83.94, 12,297.64]
M≥6.53.7675427E-4[6.89E-5, 1.03E-2]2,654.25[97.23, 14,510.92]
M≥6.63.4717857E-4[5.02E-5, 9.06E-3]2,880.36[110.37, 19,917.94]
M≥6.73.0700548E-4[3.61E-5, 5.81E-3]3,257.27[172.01, 27,727.71]
M≥6.82.5042368E-4[3.58E-6, 4.91E-3]3,993.23[203.54, 279,654.56]
M≥6.92.1923629E-4[5.64E-8, 3.48E-3]4,561.29[287.69, 17,746,228.24]
M≥72.0073217E-4[5.64E-8, 3.47E-3]4,981.76[288.08, 17,746,228.24]
M≥7.11.817446E-4[5.64E-8, 3.47E-3]5,502.23[288.14, 17,746,228.24]
M≥7.21.4586425E-4[5.03E-22, 3.47E-3]6,855.69[288.16, 1,988,364,834,892,482,000,000]
M≥7.31.2423306E-4[0.00E0, 3.47E-3]8,049.39[288.16, ∞]
M≥7.41.0757688E-4[0.00E0, 2.88E-3]9,295.68[347.09, ∞]
M≥7.57.9881735E-5[0.00E0, 2.52E-3]12,518.51[396.15, ∞]
M≥7.64.926618E-5[0.00E0, 1.26E-3]20,297.9[795.4, ∞]
M≥7.72.5596377E-5[0.00E0, 2.95E-4]39,068.03[3,389.83, ∞]
M≥7.81.4732995E-5[0.00E0, 2.86E-4]67,874.86[3,491.62, ∞]
M≥7.91.0246127E-5[0.00E0, 2.80E-4]97,597.86[3,568.23, ∞]
M≥87.882297E-6[0.00E0, 2.78E-4]126,866.57[3,598.33, ∞]
M≥8.13.10431E-6[0.00E0, 4.67E-5]322,132.77[21,404.11, ∞]
M≥8.27.2268875E-7[0.00E0, 4.35E-5]1,383,721.51[22,977.94, ∞]
M≥8.39.847946E-8[0.00E0, 1.99E-5]10,154,401.96[50,251.25, ∞]
M≥8.41.2494643E-8[0.00E0, 6.28E-6]80,034,302.97[159,108.99, ∞]
M≥8.53.7036265E-9[0.00E0, 6.20E-6]270,005,620.2[161,238.31, ∞]

Individual Branch Nucleation MFDs

(top)

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

(top)

Along-strike plot

Moment-Rates and b-Values

(top)

Along-strike plot

Length Distributions

(top)

Fault rupture length distributions. The top panel shows the raw count of ruptures in which Eureka Peak 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

(top)

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 63475Rupture 208545Rupture 162158

p97.5 Example

p99 Example

p100 Example

Rupture 195991Rupture 432126Rupture 247839

Connectivity

(top)

Map

Nearby Sections

(top)

Fault Section
Burnt Mountain, 0.13 km away
Pinto Mountain, 1.2 km away
Joshua Tree (seismicity), 2.17 km away
San Andreas (Banning), 4.98 km away
Mill Creek (San Andreas, north branch), 5.42 km away
Johnson Valley (north), 5.64 km away
Homestead Valley, 8.53 km away
Morongo Valley, 8.59 km away
Blue Cut, 9.32 km away
San Andreas (San Gorgonio Pass - Garnet Hill), 9.73 km away

Burnt Mountain, 0.13 km away

(back to table)

NSHM23
Connected?true
Directly Connected?true
Min Co-Rupture Dist0.13 km
Min Rate-Weighted Dist0.13 km
Co-rupture Count23
Co-rupture Rate6.337276E-5
Co-rupture Mag Range[6.85, 7.53]

Pinto Mountain, 1.2 km away

(back to table)

NSHM23
Connected?true
Directly Connected?true
Min Co-Rupture Dist1.2 km
Min Rate-Weighted Dist1.2 km
Co-rupture Count1,444
Co-rupture Rate1.2938732E-4
Co-rupture Mag Range[6.73, 7.87]

Joshua Tree (seismicity), 2.17 km away

(back to table)

NSHM23
Connected?true
Directly Connected?true
Min Co-Rupture Dist2.87 km
Min Rate-Weighted Dist2.87 km
Co-rupture Count25
Co-rupture Rate3.5999158E-6
Co-rupture Mag Range[6.64, 7.50]

San Andreas (Banning), 4.98 km away

(back to table)

NSHM23
Connected?true
Directly Connected?true
Min Co-Rupture Dist4.98 km
Min Rate-Weighted Dist5.59 km
Co-rupture Count1,098
Co-rupture Rate9.0136935E-5
Co-rupture Mag Range[6.67, 7.87]

Mill Creek (San Andreas, north branch), 5.42 km away

(back to table)

NSHM23
Connected?true
Directly Connected?true
Min Co-Rupture Dist5.42 km
Min Rate-Weighted Dist7.83 km
Co-rupture Count4,563
Co-rupture Rate9.587141E-5
Co-rupture Mag Range[6.79, 8.36]

Johnson Valley (north), 5.64 km away

(back to table)

NSHM23
Connected?true
Directly Connected?true
Min Co-Rupture Dist5.64 km
Min Rate-Weighted Dist5.64 km
Co-rupture Count2,703
Co-rupture Rate4.884745E-5
Co-rupture Mag Range[6.70, 8.36]

Homestead Valley, 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]

Morongo Valley, 8.59 km away

(back to table)

NSHM23
Connected?true
Directly Connected?false
Co-rupture Count38
Co-rupture Rate1.846092E-5
Co-rupture Mag Range[7.14, 7.69]

Blue Cut, 9.32 km away

(back to table)

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

San Andreas (San Gorgonio Pass - Garnet Hill), 9.73 km away

(back to table)

NSHM23
Connected?true
Directly Connected?false
Co-rupture Count10
Co-rupture Rate1.1422458E-5
Co-rupture Mag Range[6.91, 7.68]