M2.2 Earthquake 25 km W of Brinnon, Washington — August 12, 2025
2025-08-12 19:50:55 UTC (2025-08-12) · approx. 11:50 AM UTC-8 local
On August 12, 2025 at 19:50 UTC, a magnitude 2.2 shallow crustal earthquake struck 25 km W of Brinnon, Washington, at a depth of 44.1 km and coordinates 47.6728°, -123.2423°.
Physical scale: An earthquake of magnitude 2.2 releases seismic energy equivalent to roughly 31.1 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 20 m — a useful intuition for the size of the slip patch on the fault.
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.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Earthquake Details
-123.2423°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 2.2 earthquake near Brinnon, Washington?
The magnitude 2.2 earthquake that struck 25 km W of Brinnon, Washington on August 12, 2025 at 19:50 UTC had a depth of 44.1 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 2.2 earthquakes can continue for several days and gradually diminish over time.
Actions
Understanding This Data
Magnitude 2.2 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: uw62169871). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, August 12, 2025). M2.2 Earthquake 25 km W of Brinnon, Washington — August 12, 2025. Retrieved August 14, 2025 from https://www.earthquaketracker.org/earthquakes/event/uw62169871/