QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

Earthquake near Siletz, OR

No earthquake was likely felt in Siletz in the 24 hours to 5:14 pm PST (01:14 UTC). The last one was M 5.9, 306 km (190 mi) WSW, at 11:45 pm PDT on 25 September 2025, estimated intensity II (weak) in town; 29 felt reports to USGS. Every earthquake near Siletz

This page: a magnitude 1.7 earthquake was recorded in Siletz, OR, at 7:19 am PDT on 7 April 2025 (14:19 UTC), 37 km deep.

USGS: 1 km W of Siletz, Oregon

55 km (34 mi) WNW of Corvallis, OR · 136 km (84 mi) SW of Portland, OR

7:19 am PDT, Apr 7, 2025 · · 37 km deep · released about 9 lb of TNT

10 km30 km60 km120 km N Lincoln County 9 kmPolk County 47 kmBenton County 48 kmYamhill County 76 kmTillamook County 83 kmMarion County 109 kmWashington County 114 kmLinn County 114 km
Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.
When
7:19 am PDT on 7 April 2025 ()
Where
in Siletz, OR · earthquakes near Siletz
Magnitude
M 1.7 (ml)
Depth
37 km below the surface
Felt
no reports yet
Nearest
Lincoln County, 9 km SSE
Nearest mapped fault
Cascadia fold and fault belt, 15 km from its surface trace — near is not the same as on
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 584 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth it was probably too small to be felt, even directly above it. Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

Earthquakes near other towns within 30 km: Agate Beach, Toledo, Newport, Depoe Bay, Lincoln Beach, Lincoln City.

How big was it?

This earthquake released about 9 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,700,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,200,000× the energy of this one
  3. Around the size people start to feel M 3.0 110× the energy of this one
  4. This earthquake M 1.7 about 9 lb of TNT

Energy from the Gutenberg–Richter relation (log10E = 1.5M + 4.8), rounded to two figures; bar length is magnitude, which is already a logarithm of energy. Magnitudes of past earthquakes from the USGS catalogue.

For this area

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record since 1900 lists no earthquake of M5 or more within 50 km.

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 44.7205, -123.9372. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Lincoln County, OR 9 km (6 mi) SSE earthquakes near Lincoln County
Polk County, OR 47 km (29 mi) ENE earthquakes near Polk County
Benton County, OR 48 km (30 mi) ESE earthquakes near Benton County
Yamhill County, OR 76 km (47 mi) NE earthquakes near Yamhill County
Tillamook County, OR 83 km (52 mi) N earthquakes near Tillamook County
Marion County, OR 109 km (68 mi) E earthquakes near Marion County

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

31 earthquakes have been recorded within 50 km since this one.

  1. 1.8 7 km NNW of Philomath, Oregon
  2. 1.3 3 km ESE of Rose Lodge, Oregon
  3. 1.4 4 km ESE of Rose Lodge, Oregon
  4. 1.4 2 km NNW of Falls City, Oregon
  5. 1.8 2 km ENE of Blodgett, Oregon
  6. 1.9 3 km S of Fort Hill, Oregon
  7. 2.6 3 km SE of Rose Lodge, Oregon
  8. 1.7 24 km W of Newport, Oregon
  9. 1.8 22 km WNW of Newport, Oregon
  10. 1.6 9 km NW of Waldport, Oregon
  11. 1.8 4 km ENE of Lincoln Beach, Oregon
  12. 2.6 20 km W of Newport, Oregon
  13. 1.6 4 km NE of Falls City, Oregon
  14. 1.9 7 km SE of Toledo, Oregon
  15. 1.6 24 km W of Newport, Oregon

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of . QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.