3.7

M3.7 Earthquake 76 km NE of Tonopah, NevadaNovember 1, 2025

2025-11-01 19:15:15 UTC (2025-11-01) · approx. 11:15 AM UTC-8 local

MagnitudeM3.7(ml)
Time19:15 UTC11:15 AM UTC-8
Depth2.3 kmshallow crustal
Coordinates38.452°, -116.508°
Felt by1DYFI response· max MMI 3.1
Status✓ Reviewed by USGS

On November 1, 2025 at 19:15 UTC, a magnitude 3.7 shallow crustal earthquake struck 76 km NE of Tonopah, Nevada, at a depth of 2.3 km and coordinates 38.4519°, -116.5078°. The earthquake was reported felt by 1 personacross nearby locations, with a maximum shaking intensity of Modified Mercalli Intensity (MMI) 3.1 (light).

Physical scale: An earthquake of magnitude 3.7 releases seismic energy equivalent to roughly 4.8 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 205 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 38.45°, -116.51°

ShakeMap — predicted shaking intensity

Modeled ground-motion intensity contoured on the Modified Mercalli scale (MMI). Computed by the USGS from the moment-tensor solution and regional ground-motion prediction equations.

USGS ShakeMap intensity contours for the M3.7 earthquake near 76 km NE of Tonopah, Nevada

Source: U.S. Geological Survey ShakeMap. View interactive ShakeMap on USGS

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 1 citizen response to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.

USGS DYFI community-reported intensity map for the M3.7 earthquake near 76 km NE of Tonopah, Nevada

Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report

Earthquake Details

Magnitude
3.7 ml
Depth
2.3 km
shallow crustal
Location
38.4519°N
-116.5078°E
Felt Reports
1
DYFI responses
Intensity (MMI)
3.1
light
Community Intensity
2.0
CDI from reports

Technical Information

Event ID
nn00906677
Event Type
earthquake
Status
✓ Reviewed
Significance
207
Stations Used
15
Azimuthal Gap
197.0°
Min Station Distance
0.491°
RMS Residual
0.18 sec
Last Updated
2026-01-27 17:59:04 UTC

Common Questions

How strong was the magnitude 3.7 earthquake near Tonopah, Nevada?

The magnitude 3.7 earthquake that struck 76 km NE of Tonopah, Nevada on November 1, 2025 at 19:15 UTC had a depth of 2.3 km. It was felt by 1 person with maximum shaking intensity of MMI 3.1 (light). For context, this was a minor earthquake typically detected only by instruments.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 3.7 earthquakes can continue for several days and gradually diminish over time.

What should I do after an earthquake?

If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.

Authoritative source: USGS event page (event ID: nn00906677). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, November 1, 2025). M3.7 Earthquake 76 km NE of Tonopah, NevadaNovember 1, 2025. Retrieved May 26, 2026 from https://www.earthquaketracker.org/earthquakes/event/nn00906677/