QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

Earthquake near The Dalles, OR

USGS: 13 km ESE of Trout Lake, Washington

10:59 am PDT, Jun 23, 2023 · · 0.2 km deep · released about 21 lb of TNT

10 km30 km60 km120 km N Klickitat County 46 kmSkamania County 47 kmHood River County 56 kmYakima County 72 kmSherman County 82 kmClark County 91 kmWasco County 91 kmMultnomah County 95 kmLewis County 104 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
10:59 am PDT on 23 June 2023 ()
Where
44 km (27 mi) NNW of The Dalles, OR · earthquakes near The Dalles
Magnitude
M 1.9 (ml)
Depth
0.2 km below the surface
Felt
no reports yet
Nearest
Klickitat County, 46 km ESE
Nearest mapped fault
Toppenish Ridge structures, 22 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 1197 days ago

A magnitude 1.9 earthquake was recorded 44 km (27 mi) NNW of The Dalles, OR, at 10:59 am PDT on 23 June 2023 (17:59 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

Earthquakes near other towns within 30 km: White Salmon.

How big was it?

This earthquake released about 21 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 730,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 520,000× the energy of this one
  3. Around the size people start to feel M 3.0 46× the energy of this one
  4. This earthquake M 1.9 about 21 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 45.9702, -121.3520. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Klickitat County, WA 46 km (28 mi) ESE earthquakes near Klickitat County
Skamania County, WA 47 km (29 mi) W earthquakes near Skamania County
Hood River County, OR 56 km (35 mi) SSW earthquakes near Hood River County
Yakima County, WA 72 km (45 mi) NE earthquakes near Yakima County
Sherman County, OR 82 km (51 mi) SE earthquakes near Sherman County
Clark County, WA 91 km (56 mi) WSW earthquakes near Clark 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. 1.0 23 km N of Trout Lake, Washington
  2. 0.8 24 km N of Trout Lake, Washington
  3. 0.8 23 km N of Trout Lake, Washington
  4. 0.9 23 km N of Trout Lake, Washington
  5. 0.9 23 km N of Trout Lake, Washington
  6. 2.6 23 km N of Trout Lake, Washington
  7. 1.1 23 km N of Trout Lake, Washington
  8. 1.6 6 km SE of Odell, Oregon
  9. 1.7 3 km NE of Dallesport, Washington
  10. 1.9 5 km NW of White Salmon, Washington
  11. 1.6 10 km NNW of Carson, Washington
  12. 1.5 23 km N of Trout Lake, Washington
  13. 1.8 4 km E of Dallesport, Washington
  14. 1.7 1 km SSE of Goldendale, Washington
  15. 1.7 6 km SE of Mosier, 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.