3.8

M3.8 Earthquake 10 km N of Stagecoach, Nevada — December 1, 2020

2020-12-01 23:10:47 UTC (2020-12-01) · approx. 3:10 PM UTC-8 local

Felt by 214 people across surrounding communities.

MagnitudeM3.8(ml)
Time23:10 UTC≈ 3:10 PM UTC-8
Depth13.1 kmshallow crustal
Coordinates39.472°, -119.371°
Felt by214DYFI responses· max MMI 3.4
Status✓ Reviewed by USGS

On December 1, 2020 at 23:10 UTC, a magnitude 3.8 shallow crustal earthquake struck 10 km N of Stagecoach, Nevada, at a depth of 13.1 km and coordinates 39.4724°, -119.3708°. The earthquake was reported felt by 214 peopleacross surrounding communities, with a maximum shaking intensity of Modified Mercalli Intensity (MMI) 3.4 (light). This earthquake was detected by 26 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 303, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 3.8 releases seismic energy equivalent to roughly 7.6 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 252 m — a useful intuition for the size of the slip patch on the fault.

The epicenter is located in Nevada, a region characterized by Basin and Range extensional tectonics, where normal faulting accommodates east-west crustal stretching at approximately 10 mm per year. The nearest mapped fault system is the Walker Lane fault zone. View all earthquakes in Nevada.

Learn more: Magnitude scale · Aftershock sequences

Map showing earthquake epicenter at 39.47°, -119.37°

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 M3.8 earthquake near 10 km N of Stagecoach, Nevada

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

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 214 citizen responses 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 M3.8 earthquake near 10 km N of Stagecoach, Nevada

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

Earthquake Details

Magnitude
3.8 ml
Depth
13.1 km
shallow crustal
Location
39.4724°N
-119.3708°E
Felt Reports
214
DYFI responses
Intensity (MMI)
3.4
light
Community Intensity
3.8
CDI from reports

Technical Information

Event ID
nn00787091
Event Type
earthquake
Status
✓ Reviewed
Significance
303
Stations Used
26
Azimuthal Gap
48.8°
Min Station Distance
0.239°
RMS Residual
0.20 sec
Last Updated
2021-02-06 18:29:34 UTC

Common Questions

How strong was the magnitude 3.8 earthquake near Stagecoach, Nevada?

The magnitude 3.8 earthquake that struck 10 km N of Stagecoach, Nevada on December 1, 2020 at 23:10 UTC had a depth of 13.1 km. It was felt by 214 people with maximum shaking intensity of MMI 3.4 (light). For context, this was a minor earthquake typically detected only by instruments.

Where did the earthquake occur?

The earthquake epicenter was located at 39.4724°, -119.3708°, which is 10 km N of Stagecoach, Nevada. View all earthquakes in Nevada.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 3.8 earthquakes can continue for several days and gradually diminish over time.

Has Nevada had earthquakes this big before?

The largest recorded earthquake in Nevada was the M7.3 Pleasant Valley earthquake of October 2, 1915. Today's magnitude 3.8 event is significantly smaller than that historical record.

Authoritative source: USGS event page (event ID: nn00787091). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2020, December 1, 2020). M3.8 Earthquake 10 km N of Stagecoach, Nevada — December 1, 2020. Retrieved February 6, 2021 from https://www.earthquaketracker.org/earthquakes/event/nn00787091/