QuakeIndex

explosion · reviewed by a seismologist

M 1.6ml

Earthquake near Salem, OR

USGS: 8 km NNW of Adair Village, Oregon

28 km (18 mi) SW of Salem, OR · 19 km (12 mi) NW of Albany, OR

11:03 am PDT, Jun 26, 2019 · · -0.5 km deep · released about 8.7 lb of TNT

10 km30 km60 km120 km N Polk County 21 kmBenton County 30 kmLincoln County 52 kmYamhill County 57 kmMarion County 58 kmLinn County 64 kmTillamook County 89 kmWashington County 92 kmLane County 95 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
11:03 am PDT on 26 June 2019 ()
Where
29 km (18 mi) SW of Salem, OR · earthquakes near Salem
Magnitude
M 1.6 (ml)
Depth
-0.5 km below the surface
Felt
no reports yet
Nearest
Polk County, 21 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2655 days ago

A magnitude 1.6 earthquake was recorded 29 km (18 mi) SW of Salem, OR, at 11:03 am PDT on 26 June 2019 (18:03 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

Earthquakes near other towns within 30 km: Monmouth, Independence, Albany, Millersburg, Corvallis, Dallas.

USGS catalogues this as explosion, not an earthquake.

How big was it?

This earthquake released about 8.7 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 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 1.6 about 8.7 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 44.7388, -123.2700. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Polk County, OR 21 km (13 mi) NNW earthquakes near Polk County
Benton County, OR 30 km (19 mi) SSW earthquakes near Benton County
Lincoln County, OR 52 km (32 mi) WSW earthquakes near Lincoln County
Yamhill County, OR 57 km (35 mi) N earthquakes near Yamhill County
Marion County, OR 58 km (36 mi) ENE earthquakes near Marion County
Linn County, OR 64 km (40 mi) ESE earthquakes near Linn County

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

Aftershocks so far

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

  1. 1.9 12 km E of Toledo, Oregon
  2. 1.6 3 km NW of Waterloo, Oregon
  3. 1.6 7 km SSW of Dayton, Oregon
  4. 1.6 2 km ESE of Sodaville, Oregon
  5. 1.6 5 km N of Waterloo, Oregon
  6. 1.6 4 km NW of Adair Village, Oregon
  7. 1.7 6 km WNW of Dallas, Oregon
  8. 2.0 3 km ENE of Millersburg, Oregon
  9. 1.6 Oregon
  10. 1.6 5 km N of Waterloo, Oregon
  11. 1.6 4 km E of Lebanon, Oregon
  12. 2.1 17 km SSE of Rose Lodge, Oregon
  13. 1.9 6 km ENE of Lebanon, Oregon
  14. 1.6 2 km S of Waterloo, Oregon
  15. 1.6 3 km S of Fort Hill Census Designated Place, 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.