2.5

M2.5 Earthquake 6 km E of Maynard, Arkansas — October 5, 2020

2020-10-05 22:07:18 UTC (2020-10-05) · approx. 4:07 PM UTC-6 local

MagnitudeM2.5(md)
Time22:07 UTC≈ 4:07 PM UTC-6
Depth10.5 kmshallow crustal
Coordinates36.428°, -90.827°
Felt by2DYFI responses
Status✓ Reviewed by USGS

On October 5, 2020 at 22:07 UTC, a magnitude 2.5 shallow crustal earthquake struck 6 km E of Maynard, Arkansas, at a depth of 10.5 km and coordinates 36.4282°, -90.8272°.

Physical scale: An earthquake of magnitude 2.5 releases seismic energy equivalent to roughly 87.8 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 33 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 36.43°, -90.83°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 2 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 M2.5 earthquake near 6 km E of Maynard, Arkansas

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

Earthquake Details

Magnitude
2.5 md
Depth
10.5 km
shallow crustal
Location
36.4282°N
-90.8272°E
Felt Reports
2
DYFI responses
Community Intensity
1.0
CDI from reports

Technical Information

Event ID
nm60114438
Event Type
earthquake
Status
✓ Reviewed
Significance
97
Stations Used
6
Azimuthal Gap
154.0°
Min Station Distance
0.445°
RMS Residual
0.13 sec
Last Updated
2020-12-12 22:28:46 UTC

Common Questions

How strong was the magnitude 2.5 earthquake near Maynard, Arkansas?

The magnitude 2.5 earthquake that struck 6 km E of Maynard, Arkansas on October 5, 2020 at 22:07 UTC had a depth of 10.5 km. 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 2.5 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 2.5 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: nm60114438). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2020, October 5, 2020). M2.5 Earthquake 6 km E of Maynard, Arkansas — October 5, 2020. Retrieved December 12, 2020 from https://www.earthquaketracker.org/earthquakes/event/nm60114438/