M3.0 Earthquake 8 km NNE of Government Camp, Oregon — June 6, 2023
2023-06-06 21:35:15 UTC (2023-06-06) · approx. 1:35 PM UTC-8 local
Felt by 48 people across nearby locations.
On June 6, 2023 at 21:35 UTC, a magnitude 3.0 shallow crustal earthquake struck 8 km NNE of Government Camp, Oregon, at a depth of 0.7 km and coordinates 45.3720°, -121.7015°. The earthquake was reported felt by 48 peopleacross nearby locations, with a maximum shaking intensity of Modified Mercalli Intensity (MMI) 3.8 (light). This earthquake was detected by 32 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 150, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 3.0 releases seismic energy equivalent to roughly 461 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 70 m — 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
ShakeMap — predicted shaking intensity
Modeled ground-motion intensity contoured on the Modified Mercalli scale (MMI). Computed by the USGS from the moment-tensor solution and regional ground-motion prediction equations.
Source: U.S. Geological Survey ShakeMap. View interactive ShakeMap on USGS
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 48 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
-121.7015°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 3.0 earthquake near Government Camp, Oregon?
The magnitude 3.0 earthquake that struck 8 km NNE of Government Camp, Oregon on June 6, 2023 at 21:35 UTC had a depth of 0.7 km. It was felt by 48 people with maximum shaking intensity of MMI 3.8 (light). For context, this was a minor earthquake typically detected only by instruments.
Where did the earthquake occur?
The earthquake epicenter was located at 45.3720°, -121.7015°, which is 8 km NNE of Government Camp, Oregon. View all earthquakes in Oregon.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 3.0 earthquakes can continue for several days 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 3.0 event is significantly smaller than that historical record.
Authoritative source: USGS event page (event ID: uw61930961). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, June 6, 2023). M3.0 Earthquake 8 km NNE of Government Camp, Oregon — June 6, 2023. Retrieved January 29, 2025 from https://www.earthquaketracker.org/earthquakes/event/uw61930961/