M2.7 Earthquake 1 km ENE of Enetai, Washington — October 1, 2024
2024-10-01 17:49:44 UTC (2024-10-01) · approx. 9:49 AM UTC-8 local
Felt by 40 people across nearby locations.
On October 1, 2024 at 17:49 UTC, a magnitude 2.7 shallow crustal earthquake struck 1 km ENE of Enetai, Washington, at a depth of 27.1 km and coordinates 47.5918°, -122.5832°. The earthquake was reported felt by 40 peopleacross nearby locations, with a maximum shaking intensity of Modified Mercalli Intensity (MMI) 1.9 (weak). This earthquake was detected by 91 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 126, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 2.7 releases seismic energy equivalent to roughly 158 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 43 m — a useful intuition for the size of the slip patch on the fault.
The epicenter is located in Washington, a region characterized by the Cascadia Subduction Zone, where the Juan de Fuca Plate subducts beneath North America and is capable of producing M9+ megathrust earthquakes. The nearest mapped fault system is the Cascadia Subduction Zone. View all earthquakes in Washington.
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 40 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
-122.5832°E
Technical Information
Common Questions
How strong was the magnitude 2.7 earthquake near Enetai, Washington?
The magnitude 2.7 earthquake that struck 1 km ENE of Enetai, Washington on October 1, 2024 at 17:49 UTC had a depth of 27.1 km. It was felt by 40 people with maximum shaking intensity of MMI 1.9 (weak). For context, this was a minor earthquake typically detected only by instruments.
Where did the earthquake occur?
The earthquake epicenter was located at 47.5918°, -122.5832°, which is 1 km ENE of Enetai, Washington. View all earthquakes in Washington.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 2.7 earthquakes can continue for several days and gradually diminish over time.
Has Washington had earthquakes this big before?
The largest recorded earthquake in Washington was the M7.4 offshore earthquake of April 13, 1949. Today's magnitude 2.7 event is significantly smaller than that historical record.
Authoritative source: USGS event page (event ID: uw62043042). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, October 1, 2024). M2.7 Earthquake 1 km ENE of Enetai, Washington — October 1, 2024. Retrieved September 12, 2025 from https://www.earthquaketracker.org/earthquakes/event/uw62043042/