2.9

M2.9 Earthquake 8 km NNE of Airway Heights, WashingtonOctober 13, 2022

2022-10-13 22:40:19 UTC (2022-10-13) · approx. 2:40 PM UTC-8 local

MagnitudeM2.9(md)
Time22:40 UTC2:40 PM UTC-8
Depth-0.7 kmshallow crustal
Coordinates47.709°, -117.539°
Felt by3DYFI responses
Status✓ Reviewed by USGS

On October 13, 2022 at 22:40 UTC, a magnitude 2.9 shallow crustal earthquake struck 8 km NNE of Airway Heights, Washington, at a depth of -0.7 km and coordinates 47.7090°, -117.5392°.

Physical scale: An earthquake of magnitude 2.9 releases seismic energy equivalent to roughly 374 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 63 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 47.71°, -117.54°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 3 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 M2.9 earthquake near 8 km NNE of Airway Heights, Washington

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

Earthquake Details

Magnitude
2.9 md
Depth
-0.7 km
shallow crustal
Location
47.7090°N
-117.5392°E
Felt Reports
3
DYFI responses
Community Intensity
2.0
CDI from reports

Technical Information

Event ID
uw61878732
Event Type
explosion
Status
✓ Reviewed
Significance
133
Stations Used
6
Azimuthal Gap
129.0°
Min Station Distance
0.284°
RMS Residual
0.10 sec
Last Updated
2022-10-17 02:22:48 UTC

Common Questions

How strong was the magnitude 2.9 earthquake near Airway Heights, Washington?

The magnitude 2.9 earthquake that struck 8 km NNE of Airway Heights, Washington on October 13, 2022 at 22:40 UTC had a depth of -0.7 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 2.9 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 2.9 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: uw61878732). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, October 13, 2022). M2.9 Earthquake 8 km NNE of Airway Heights, WashingtonOctober 13, 2022. Retrieved October 17, 2022 from https://www.earthquaketracker.org/earthquakes/event/uw61878732/