M3.9 Earthquake near off the coast of Oregon — May 20, 2024
2024-05-20 21:02:34 UTC (2024-05-20) · approx. 12:02 PM UTC-9 local
On May 20, 2024 at 21:02 UTC, a magnitude 3.9 shallow crustal earthquake struck near off the coast of Oregon, at a depth of 10.0 km and coordinates 43.7898°, -129.4808°.
Physical scale: An earthquake of magnitude 3.9 releases seismic energy equivalent to roughly 11 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 296 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 1 citizen response 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
-129.4808°E
Technical Information
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Common Questions
How strong was the magnitude 3.9 earthquake near off the coast of Oregon?
The magnitude 3.9 earthquake that struck near off the coast of Oregon on May 20, 2024 at 21:02 UTC had a depth of 10.0 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 3.9 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 3.9 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: us6000mzwt). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, May 20, 2024). M3.9 Earthquake near off the coast of Oregon — May 20, 2024. Retrieved August 6, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000mzwt/