3.3

M3.3 Earthquake 18 km N of Stanton, Texas — December 31, 2020

2020-12-31 18:21:33 UTC (2020-12-31) · approx. 11:21 AM UTC-7 local

Felt by 10 people across nearby locations.

MagnitudeM3.3(mb_lg)
Time18:21 UTC≈ 11:21 AM UTC-7
Depth5.8 kmshallow crustal
Coordinates32.296°, -101.800°
Felt by10DYFI responses
Status✓ Reviewed by USGS

On December 31, 2020 at 18:21 UTC, a magnitude 3.3 shallow crustal earthquake struck 18 km N of Stanton, Texas, at a depth of 5.8 km and coordinates 32.2963°, -101.8003°.

Physical scale: An earthquake of magnitude 3.3 releases seismic energy equivalent to roughly 1.3 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 114 m — a useful intuition for the size of the slip patch on the fault.

The epicenter is located in Texas, a region characterized by a mix of natural intraplate seismicity and induced events in the Permian Basin linked to wastewater disposal. View all earthquakes in Texas.

Learn more: Magnitude scale · Aftershock sequences

Map showing earthquake epicenter at 32.30°, -101.80°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 10 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 M3.3 earthquake near 18 km N of Stanton, Texas

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

Earthquake Details

Magnitude
3.3 mb_lg
Depth
5.8 km
shallow crustal
Location
32.2963°N
-101.8003°E
Felt Reports
10
DYFI responses
Community Intensity
3.1
CDI from reports

Technical Information

Event ID
us6000d4l0
Event Type
earthquake
Status
✓ Reviewed
Significance
171
Azimuthal Gap
78.0°
Min Station Distance
0.317°
RMS Residual
0.29 sec
Last Updated
2021-03-06 23:21:04 UTC

Common Questions

How strong was the magnitude 3.3 earthquake near Stanton, Texas?

The magnitude 3.3 earthquake that struck 18 km N of Stanton, Texas on December 31, 2020 at 18:21 UTC had a depth of 5.8 km. For context, this was a minor earthquake typically detected only by instruments.

Where did the earthquake occur?

The earthquake epicenter was located at 32.2963°, -101.8003°, which is 18 km N of Stanton, Texas. View all earthquakes in Texas.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 3.3 earthquakes can continue for several days and gradually diminish over time.

Has Texas had earthquakes this big before?

The largest recorded earthquake in Texas was the M5.8 Valentine earthquake of August 16, 1931. Today's magnitude 3.3 event is significantly smaller than that historical record.

Authoritative source: USGS event page (event ID: us6000d4l0). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2020, December 31, 2020). M3.3 Earthquake 18 km N of Stanton, Texas — December 31, 2020. Retrieved March 6, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000d4l0/