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Intensity Lab
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Max Est. MMI

M5.7 earthquake · shaking intensity by town 20 km ESE of Silver Springs, Nevada

Magnitude5.7
Depth5.0 km
Time 2026-04-14T01:29:12.123000Z UTC: 2026-04-14T01:29:12.123000Z
USGS ID nn00914068
ShakeMap View USGS ↗

Shaking Animations

Simulated bowling pin shaking at each city’s intensity level. Videos appear as they finish rendering.

1 site
Location Type Intensity at site Animation Ground motion
Silver Springs City · Tabletop Simulated Moderate(V) USGS ShakeMap

Engineering Ground Motion Parameters

GMPE predictions provide an independent check on the ShakeMap interpolated intensities above. ShakeMap relies on seismic station recordings; in areas with sparse station coverage — or for large teleseismic events and earthquakes outside dense West Coast networks — ShakeMap MMI can be inaccurate. A significant difference between ShakeMap and GMPE estimates is a signal that the ShakeMap result should be treated as preliminary. Also includes site Vs30 values and raw ground motion parameters (PGA/PGV).

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Est. Vs30 Values

Estimated shear-wave velocity in the upper 30 m used in GMPE calculations. Ref. column shows the 760 m/s rock-site reference for comparison.

Location Ref. (760 m/s) Est. Vs30 (m/s)
Silver Springs
NV 		760 322
Fallon
NV 		760 201
Stagecoach
NV 		760 370
Fernley
NV 		760 247
Yerington
NV 		760 207

MMI vs Distance — Default Vs30 (760 m/s)

All methods using the 760 m/s rock-site reference. ShakeMap values are independent of Vs30.

MMI vs distance — default Vs30

MMI vs Distance — Est. Vs30

GMPEs use the Est. Vs30 values shown in the table above. ShakeMap values are independent of Vs30.

MMI vs distance — Est. Vs30

GMPE Residual — Observed − Predicted MMI

Signed residual at each seismic station. Positive values mean the GMPE underestimated shaking; negative values mean it overestimated. The dashed line at zero indicates perfect agreement.

GMPE residual plot

GMPE Predicted vs. Observed MMI at Seismic Stations

Each point is one seismic station. Points on the dashed 1:1 line indicate perfect agreement; above the line = GMPE underestimated shaking; below = overestimated.

GMPE predicted vs observed scatter

GMPE Performance — Station Observations

Statistics computed by comparing each GMPE's predicted MMI against ShakeMap observed MMI at seismic stations. Bias = mean(observed − predicted). Lower RMSE indicates better overall agreement with instrumental measurements.

GMPE Bias Sigma RMSE
ASK14 +0.44 0.45 0.63
BSSA14 -0.09 0.44 0.45
CY14 +0.30 0.44 0.53
CB14 +0.20 0.46 0.50
Bias > 0: GMPE underestimated shaking at stations. Bias < 0: GMPE overestimated shaking.

Peak Ground Motion — Seismic Station Observations

Recorded PGA and PGV at seismic stations, sorted by highest PGA. Top 25 stations shown. MMI (PGA) and MMI (PGV) are independent conversions via Worden et al. (2012) GMICE.

Station PGA (g) MMI (PGA) PGV (cm/s) MMI (PGV)
Buffalo Canyon, Nevada w84gm (NN.BFC) 0.0280 Light(IV) 1.224 Weak(III)
Donner Summit, California (NN.DON) 0.0206 Weak(III) 2.832 Light(IV)
Yerington, Nevada w84gm (NN.YER) 0.0141 Weak(III) 0.892 Weak(III)
Bishop Manogue Catholic High School, Reno, NV (NN.BMHS) 0.0134 Weak(III) 1.189 Weak(III)
Thunderbird Lodge, Lake Tahoe, NV (NN.TBRD) 0.0131 Weak(III) 0.805 Weak(III)
Queen Bee, Mono County, California (NN.QNBC) 0.0091 Weak(III) 0.530 Weak(III)
Nevada Energy (NP.2023) 0.0083 Weak(III) 0.815 Weak(III)
Meyers - South Lake Tahoe (CE.66038) 0.0080 Weak(III) 0.530 Weak(III)
Pah Rah Range, Nevada w84gm (NN.PAH) 0.0079 Weak(III) 0.635 Weak(III)
TV Hill 1, Hawthorne, NV (NN.TVH1) 0.0073 Weak(III) 0.562 Weak(III)
Washoe Valley, Nevada;Laurence Kaplan Property (NN.WASH) 0.0073 Weak(III) 0.361 Weak(III)
Bald Mtn, NV (NN.BALD) 0.0070 Weak(III) 0.442 Weak(III)
Bunker Hill, Placer County, CA (NN.BUNK) 0.0069 Weak(III) 0.296 Weak(III)
Zephyr Cove, Lake Tahoe, Nevada (NN.ZPR) 0.0065 Weak(III) 0.445 Weak(III)
Highway Maintenance Yard (NP.2021) 0.0064 Weak(III) 0.286 Weak(III)
Sage Hen site 5, Independence Lake, CA (NN.SAG5) 0.0063 Weak(III) 0.422 Weak(III)
Pyramid Lake 2 (NN.PYM2) 0.0061 Weak(III) 0.380 Weak(III)
Rockland Comm. Site (NN.RKLD) 0.0059 Weak(III) 0.437 Weak(III)
Kaiserville, Nevada w84gm (NN.KVN) 0.0056 Weak(II) 0.204 Weak(II)
Minden/Gardnerville Fire Stn RT130-ANSS w84gm (NN.MND1) 0.0055 Weak(II) 0.621 Weak(III)
Sierra Vista (NC.MSVB) 0.0052 Weak(II) 0.174 Weak(II)
Weber Reservoir, near Camino (BK.WEBR) 0.0052 Weak(II) 0.192 Weak(II)
Weller Cave, Western Cave Conservancy, Sutter Creek, CA (BK.WELL) 0.0051 Weak(II) 0.242 Weak(II)
Washoe County DEM, Nevada (NN.WDEM) 0.0050 Weak(II) 0.483 Weak(III)
Verdi Peak, California (NN.VPK) 0.0049 Weak(II) 0.459 Weak(III)
Source: USGS ShakeMap station recordings (view ShakeMap). PGA in g (fraction of gravitational acceleration); PGV in cm/s. The observed MMI shown on the map uses ShakeMap's reported instrumental intensity where available, or max(MMI from PGA, MMI from PGV) otherwise.

Ground Shaking Intensities — Interpolated ShakeMap MMI

5 sites
Location MMI Description
Silver Springs
NV 		Moderate(V)
Fallon
NV 		Light(IV)
Stagecoach
NV 		Light(IV)
Fernley
NV 		Light(IV)
Yerington
NV 		Light(IV)

Seismic Station Observed MMI

MMI values are derived directly from observed ground motion measurements at seismic stations and are not spatially interpolated.

3 stations
Station MMI Description
Pine Nut, Nevada w84 (NN.PNT) Light(IV)
Donner Summit, California (NN.DON) Light(IV)
Yerington, Nevada w84gm (NN.YER) Weak(III)