2.5

M2.5 Earthquake 3 km NE of Eastborough, Kansas — December 19, 2020

2020-12-19 19:18:18 UTC (2020-12-19) · approx. 1:18 PM UTC-6 local

Felt by 170 people across surrounding communities.

MagnitudeM2.5(mb_lg)
Time19:18 UTC≈ 1:18 PM UTC-6
Depth7.8 kmshallow crustal
Coordinates37.715°, -97.237°
Felt by170DYFI responses
Status✓ Reviewed by USGS

On December 19, 2020 at 19:18 UTC, a magnitude 2.5 shallow crustal earthquake struck 3 km NE of Eastborough, Kansas, at a depth of 7.8 km and coordinates 37.7145°, -97.2365°.

Physical scale: An earthquake of magnitude 2.5 releases seismic energy equivalent to roughly 84.8 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 32 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 37.71°, -97.24°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 170 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 3 km NE of Eastborough, Kansas

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

Earthquake Details

Magnitude
2.5 mb_lg
Depth
7.8 km
shallow crustal
Location
37.7145°N
-97.2365°E
Felt Reports
170
DYFI responses
Community Intensity
4.7
CDI from reports

Technical Information

Event ID
us7000csht
Event Type
earthquake
Status
✓ Reviewed
Significance
176
Azimuthal Gap
48.0°
Min Station Distance
0.660°
RMS Residual
0.24 sec
Last Updated
2021-02-27 23:26:16 UTC

Common Questions

How strong was the magnitude 2.5 earthquake near Eastborough, Kansas?

The magnitude 2.5 earthquake that struck 3 km NE of Eastborough, Kansas on December 19, 2020 at 19:18 UTC had a depth of 7.8 km. For context, this was a minor earthquake typically detected only by instruments.

Where did the earthquake occur?

The earthquake epicenter was located at 37.7145°, -97.2365°, which is 3 km NE of Eastborough, Kansas.

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.

Authoritative source: USGS event page (event ID: us7000csht). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2020, December 19, 2020). M2.5 Earthquake 3 km NE of Eastborough, Kansas — December 19, 2020. Retrieved February 27, 2021 from https://www.earthquaketracker.org/earthquakes/event/us7000csht/