M5.0 Earthquake near Off the coast of Oregon — January 11, 2023
2023-01-11 10:17:18 UTC (2023-01-11) · approx. 1:17 AM UTC-9 local
Felt by 10 people across nearby locations.
On January 11, 2023 at 10:17 UTC, a magnitude 5.0 shallow crustal earthquake struck near Off the coast of Oregon, at a depth of 10.0 km and coordinates 43.9646°, -128.7389°. This earthquake was detected by 77 seismic stations with moderate location accuracy and was assigned a USGS significance rating of 389, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 5.0 releases seismic energy equivalent to roughly 477 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.7 km — a useful intuition for the size of the slip patch on the fault.
The epicenter is located in Oregon, a region characterized by the southern Cascadia Subduction Zone, with additional seismicity from crustal faults in the Willamette Valley. The nearest mapped fault system is the Cascadia Subduction Zone. View all earthquakes in Oregon.
Learn more: Cascadia Subduction Zone · Magnitude scale · Aftershock sequences
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 10 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
-128.7389°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 5.0 earthquake near Off the coast of Oregon?
The magnitude 5.0 earthquake that struck near Off the coast of Oregon on January 11, 2023 at 10:17 UTC had a depth of 10.0 km. For context, this was a moderate earthquake that could be widely felt.
Where did the earthquake occur?
The earthquake epicenter was located at 43.9646°, -128.7389°, which is near Off the coast of Oregon. View all earthquakes in Oregon.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.0 earthquakes can continue for days to weeks and gradually diminish over time.
Has Oregon had earthquakes this big before?
The largest recorded earthquake in Oregon was the M7.3 offshore Brookings earthquake of November 23, 1873. Today's magnitude 5.0 event is significantly smaller than that historical record.
Authoritative source: USGS event page (event ID: us7000j3ld). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, January 11, 2023). M5.0 Earthquake near Off the coast of Oregon — January 11, 2023. Retrieved December 26, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000j3ld/