QuakeIndex

explosion · reviewed by a seismologist

M 1.7ml

Earthquake near Turner, OR

No earthquake was likely felt in Turner in the 24 hours to 7:56 pm PST (03:56 UTC). The last one was M 3.2, 30 km (19 mi) NNW, at 7:58 am PST on 23 November 2025, estimated intensity II (weak) in town; 228 felt reports to USGS. Every earthquake near Turner

No: USGS classifies this as a explosion, not an earthquake. A magnitude 1.7 explosion was recorded in Turner, OR, at 12:45 pm PDT on 12 July 2024 (19:45 UTC), less than 1 km deep. 2 people have reported feeling it to USGS.

USGS: 1 km SSE of Turner, Oregon

12 km (7 mi) SSE of Salem, OR

12:45 pm PDT, Jul 12, 2024 · · -0.4 km deep · released about 12 lb of TNT

10 km30 km60 km120 km N Marion County 30 kmPolk County 36 kmLinn County 50 kmBenton County 53 kmYamhill County 55 kmClackamas County 70 kmLincoln County 79 kmWashington County 81 kmMultnomah County 90 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
12:45 pm PDT on 12 July 2024 ()
Where
in Turner, OR · earthquakes near Turner
Magnitude
M 1.7 (ml)
Depth
-0.4 km below the surface
Felt
2 reports · strongest reported intensity III
Nearest
Marion County, 30 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 853 days ago

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

At this magnitude and depth, people at rest would likely notice it out to about 13 km (8 mi) from the epicentre. 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: Aumsville, Four Corners, Sublimity, Stayton, Jefferson, Salem.

USGS catalogues this as explosion, not an earthquake.

How big was it?

This earthquake released about 12 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 1,200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 870,000× the energy of this one
  3. Around the size people start to feel M 3.0 78× the energy of this one
  4. This earthquake M 1.7 about 12 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

The largest earthquake within 50 km since 2016 was M 4.4 on 2022-10-07 — about 9,400 times the energy of this one.

Before 2016, the USGS record lists one earthquake of M5 or more within 50 km:

  1. 5.6 4 km E of Scotts Mills, Oregon · 35 km NE of this epicentre

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 44.8313, -122.9488. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Marion County, OR 30 km (19 mi) ENE earthquakes near Marion County
Polk County, OR 36 km (23 mi) WNW earthquakes near Polk County
Linn County, OR 50 km (31 mi) SE earthquakes near Linn County
Benton County, OR 53 km (33 mi) SW earthquakes near Benton County
Yamhill County, OR 55 km (34 mi) NNW earthquakes near Yamhill County
Clackamas County, OR 70 km (43 mi) ENE earthquakes near Clackamas County

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

Aftershocks so far

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

  1. 3.2 5 km SE of Amity, Oregon
  2. 1.6 6 km S of Dayton, Oregon
  3. 1.6 6 km NNW of Philomath, Oregon
  4. 1.6 6 km ESE of Molalla, Oregon
  5. 1.6 5 km W of Dallas, Oregon
  6. 1.6 4 km SSW of Scotts Mills, Oregon
  7. 1.8 6 km ESE of Molalla, Oregon
  8. 1.8 3 km W of Mehama, Oregon
  9. 2.0 3 km WSW of Dundee, Oregon
  10. 2.1 7 km ESE of Molalla, Oregon
  11. 1.5 4 km SSW of Scotts Mills, Oregon
  12. 1.5 1 km SSE of Hubbard, Oregon
  13. 2.0 4 km N of Sweet Home, Oregon
  14. 1.8 8 km ESE of Scotts Mills, Oregon
  15. 1.6 6 km SSE of Molalla, 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.