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United States · Oregon

M2.3 Earthquake near Multnomah County, Oregon (United States)

UTC time: 2026-09-17 09:56:46 UTC Local time: —

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About this earthquake

On September 17, 2026 at 09:56 UTC, a magnitude M2.3 earthquake occurred near Multnomah County, Oregon (United States). The hypocenter lay relatively close to the surface at around 22 km, increasing how strongly it was felt. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The event was recorded by USGS. United States: over the past 24 hours, QuakeMap24 logged 182 earthquakes, the strongest at M5.2.

Details

ID
2d38503877654960c559672eb9e02449bd0c6bf2
Magnitude
M2.3
Depth
21.9 km
UTC time
2026-09-17 09:56:46 UTC
Local time
—
Country
United States
State
Oregon
City
Multnomah County
County
Multnomah County
Source
usgs
Coordinates
45.67367, -122.84267
Temperature
13.9°C

Depth profile

Depth profile Depth: 21.9 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 21.9 km
Shallow
21.9 km
21.9 km — deeper than the regional average (15.2 km)
Regional average: 15.2 km
Why depth matters

Shallow quakes release energy near the surface — shaking is felt more strongly and damage potential is higher.

Depth classes per USGS

Volcanoes nearby

  • West Crater
    Distance: 63 km ·Volcanic field ·Elevation: 1'329 m ·Last eruption: -5750 ·United States
  • St. Helens
    Distance: 78 km ·Stratovolcano ·Elevation: 2'549 m ·Last eruption: 2008 ·United States
  • Indian Heaven
    Distance: 84 km ·Volcanic field ·Elevation: 1'806 m ·Last eruption: -6250 ·United States
  • Hood
    Distance: 95 km ·Stratovolcano ·Elevation: 3'426 m ·Last eruption: 1866 ·United States
  • Adams
    Distance: 120 km ·Stratovolcano ·Elevation: 3'742 m ·Last eruption: 950 ·United States
  • Jefferson
    Distance: 138 km ·Stratovolcano ·Elevation: 3'199 m ·Last eruption: 950 ·United States

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Portland International AirportUnited States · PDX · KPDX
    21.2 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-09-17

Nuclear power plants

  • Trojan nuclear power plantUnited StatesPermanently shut downReactor units at site: 1
    40.8 kmStraight-line distance

Source: Global Energy Monitor · Global Nuclear Power Tracker · Dataset date: 2026-08

This selection shows geographic proximity, not a hazard zone or confirmed impacts. Distances use recorded site coordinates. Sources & data dates

United States

Context for this earthquake

17 Sep 2025 – 17 Sep 2026 · M ≥ 2.0 · 11,628 Catalogue entries

Of 11,627 other entries for this area and period, 6,119 have a higher stored magnitude. Different magnitude types and reports not yet merged limit the comparison.

Open seismic profile

Historic earthquake map · United States

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Country statistics · United States

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View earthquake KPIs, strongest and latest events, and averages for this country.

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