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I

Max Est. MMI

73 km NE of Tonopah, Nevada

Magnitude3.5
Depth7.6 km
Time 2026-03-14T15:06:52.091000Z UTC: 2026-03-14T15:06:52.091000Z
USGS ID nn00912635
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Ground Shaking Intensities — Interpolated ShakeMap MMI

3 sites
Location MMI
Tonopah
NV
I
Goldfield
NV
I
Eureka
NV
I

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)
Tonopah
NV
760 544
Goldfield
NV
760 433
Eureka
NV
760 563

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