QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0ml

Earthquake near Orchards, WA

USGS: 1 km SE of Orchards, Washington

16 km (10 mi) NNE of Portland, OR · in Vancouver, WA

1:45 pm PDT, Jul 25, 2017 · · 18 km deep · released about 33 lb of TNT

10 km30 km60 km120 km N Clark County 13 kmMultnomah County 15 kmWashington County 45 kmColumbia County 53 kmCowlitz County 61 kmSkamania County 61 kmClackamas County 61 kmHood River County 71 kmYamhill County 76 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
1:45 pm PDT on 25 July 2017 ()
Where
in Orchards, WA · earthquakes near Orchards
Magnitude
M 2.0 (ml)
Depth
18 km below the surface
Felt
no reports yet
Nearest
Clark County, 13 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3355 days ago

A magnitude 2.0 earthquake was recorded in Orchards, WA, at 1:45 pm PDT on 25 July 2017 (20:45 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

Earthquakes near other towns within 30 km: Mill Plain, Five Corners, Walnut Grove, Barberton, Minnehaha, Brush Prairie.

How big was it?

This earthquake released about 33 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 450,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 320,000× the energy of this one
  3. Around the size people start to feel M 3.0 29× the energy of this one
  4. This earthquake M 2.0 about 33 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 lists 2 earthquakes of M5 or more within 50 km:

  1. 5.2 5 km E of Bridgeton, Oregon · 8 km SW of this epicentre
  2. 5.0 3 km SW of Portland, Oregon · 21 km SW 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 45.6570, -122.5410. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Clark County, WA 13 km (8 mi) NNE earthquakes near Clark County
Multnomah County, OR 15 km (10 mi) SE earthquakes near Multnomah County
Washington County, OR 45 km (28 mi) WSW earthquakes near Washington County
Columbia County, OR 53 km (33 mi) NW earthquakes near Columbia County
Cowlitz County, WA 61 km (38 mi) N earthquakes near Cowlitz County
Skamania County, WA 61 km (38 mi) NE earthquakes near Skamania County

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

Aftershocks so far

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

  1. 1.8 3 km NNW of Mill Plain, Washington
  2. 1.6 0 km WSW of Aloha, Oregon
  3. 1.7 4 km WSW of Yacolt, Washington
  4. 1.6 1 km N of West Haven, Oregon
  5. 1.5 11 km NNE of Sandy, Oregon
  6. 1.6 1 km WSW of West Slope, Oregon
  7. 1.6 1 km NNE of Saint Helens, Oregon
  8. 1.6 Washington
  9. 1.5 3 km N of Portland, Oregon
  10. 1.6 6 km SSE of Sandy, Oregon
  11. 1.6 12 km N of Amboy, Washington
  12. 2.0 4 km SE of Ridgefield, Washington
  13. 1.6 8 km S of Scappoose, Oregon
  14. 1.7 7 km NW of North Portland, Oregon
  15. 2.6 8 km S of Scappoose, 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.