QuakeIndex

explosion · reviewed by a seismologist

M 1.5ml

Earthquake near Venersborg, WA

No earthquake was likely felt in Venersborg in the 24 hours to 1:22 am PST (09:22 UTC). The last one was M 1.6, 5 km (3 mi) NW, at 4:25 pm PDT on 19 October 2026, estimated intensity II (weak) in town. Every earthquake near Venersborg

No: USGS classifies this as a explosion, not an earthquake. A magnitude 1.5 explosion was recorded 3 km (2 mi) north-northwest of Venersborg, WA, at 4:41 pm PST on 11 November 2019 (00:41 UTC), less than 1 km deep.

USGS: 2 km NNW of Venersborg, Washington

33 km (21 mi) NNE of Portland, OR · 21 km (13 mi) NE of Vancouver, WA

4:41 pm PST, Nov 11, 2019 · · -1.0 km deep · released about 5.7 lb of TNT

10 km30 km60 km120 km N Clark County 5 kmMultnomah County 28 kmSkamania County 45 kmCowlitz County 48 kmColumbia County 52 kmWashington County 58 kmHood River County 69 kmClackamas County 73 kmLewis County 87 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
4:41 pm PST on 11 November 2019 ()
Where
3 km (2 mi) north-northwest of Venersborg, WA · earthquakes near Venersborg
Magnitude
M 1.5 (ml)
Depth
-1.0 km below the surface
Felt
no reports yet
Nearest
Clark County, 5 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2558 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 10 km (6 mi) from the epicentre. In Venersborg, 3 km away, the estimate is intensity II (weak). 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: Lewisville, Hockinson, Battle Ground, Yacolt, Meadow Glade, Brush Prairie.

USGS catalogues this as explosion, not an earthquake.

How big was it?

This earthquake released about 5.7 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,600,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,900,000× the energy of this one
  3. Around the size people start to feel M 3.0 170× the energy of this one
  4. This earthquake M 1.5 about 5.7 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 lists 8 earthquakes of M5 or more within 50 km; the five largest:

  1. 5.7 38 km NNE of Amboy, Washington · 50 km NNE of this epicentre
  2. 5.2 5 km E of Bridgeton, Oregon · 25 km SSW of this epicentre
  3. 5.2 37 km NNE of Amboy, Washington · 49 km NNE of this epicentre
  4. 5.1 28 km ENE of Amboy, Washington · 35 km NE of this epicentre
  5. 5.1 38 km NNE of Amboy, Washington · 50 km NNE 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 45.7963, -122.4395. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Clark County, WA 5 km (3 mi) SW earthquakes near Clark County
Multnomah County, OR 28 km (17 mi) S earthquakes near Multnomah County
Skamania County, WA 45 km (28 mi) NE earthquakes near Skamania County
Cowlitz County, WA 48 km (30 mi) NNW earthquakes near Cowlitz County
Columbia County, OR 52 km (32 mi) WNW earthquakes near Columbia County
Washington County, OR 58 km (36 mi) WSW earthquakes near Washington County

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

Aftershocks so far

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

  1. 2.0 1 km NNW of Salmon Creek, Washington
  2. 1.6 Washington-Oregon border region
  3. 1.7 3 km SSW of Yacolt, Washington
  4. 1.7 3 km NNE of Deer Island, Oregon
  5. 1.8 1 km ENE of Prescott, Oregon
  6. 1.8 4 km SW of North Portland, Oregon
  7. 1.5 0 km W of Garden Home-Whitford, Oregon
  8. 1.5 5 km ENE of Lewisville, Washington
  9. 2.1 29 km E of Castle Rock, Washington
  10. 1.5 0 km N of Tigard, Oregon
  11. 1.8 2 km S of Saint Helens, Oregon
  12. 1.6 5 km E of Lewisville, Washington
  13. 1.7 1 km SSE of Prescott, Oregon
  14. 1.6 7 km ENE of Prescott, Oregon
  15. 2.3 14 km ENE of Yacolt, Washington

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.