QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

Earthquake near Vancouver, WA

USGS: 3 km ESE of Vancouver, Washington

11 km (7 mi) NNE of Portland, OR · in Vancouver, WA

12:49 am PST, Mar 5, 2016 · · 18 km deep · released about 8.1 lb of TNT

10 km30 km60 km120 km N Multnomah County 18 kmClark County 19 kmWashington County 38 kmColumbia County 50 kmClackamas County 62 kmCowlitz County 63 kmSkamania County 68 kmYamhill County 69 kmHood River 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
12:49 am PST on 5 March 2016 ()
Where
3 km (2 mi) ESE of Vancouver, WA · earthquakes near Vancouver
Magnitude
M 1.6 (ml)
Depth
18 km below the surface
Felt
no reports yet
Nearest
Multnomah County, 18 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 558 days ago

A magnitude 1.6 earthquake was recorded 3 km (2 mi) ESE of Vancouver, WA, at 12:49 am PST on 5 March 2016 (08:49 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

Earthquakes near other towns within 30 km: Minnehaha, Walnut Grove, Hazel Dell, Orchards, Five Corners, North Portland.

How big was it?

This earthquake released about 8.1 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 1,900,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,300,000× the energy of this one
  3. Around the size people start to feel M 3.0 120× the energy of this one
  4. This earthquake M 1.6 about 8.1 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 · 4 km SSE of this epicentre
  2. 5.0 3 km SW of Portland, Oregon · 16 km SSW 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 45.6308, -122.6180. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Multnomah County, OR 18 km (11 mi) ESE earthquakes near Multnomah County
Clark County, WA 19 km (12 mi) NNE earthquakes near Clark County
Washington County, OR 38 km (24 mi) WSW earthquakes near Washington County
Columbia County, OR 50 km (31 mi) NW earthquakes near Columbia County
Clackamas County, OR 62 km (38 mi) SSE earthquakes near Clackamas County
Cowlitz County, WA 63 km (39 mi) N earthquakes near Cowlitz County

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

Aftershocks so far

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

  1. 1.6 12 km N of Amboy, Washington
  2. 2.0 4 km SE of Ridgefield, Washington
  3. 1.6 8 km S of Scappoose, Oregon
  4. 1.7 7 km NW of North Portland, Oregon
  5. 2.6 8 km S of Scappoose, Oregon
  6. 1.7 8 km NE of Woodland, Washington
  7. 1.8 9 km NNE of Bethany, Oregon
  8. 1.5 2 km NNE of Kalama, Washington
  9. 1.8 7 km SW of Aloha, Oregon
  10. 1.5 1 km NE of Lewisville, Washington
  11. 1.6 4 km SSW of Yacolt, Washington
  12. 1.5 11 km NW of Amboy, Washington
  13. 2.0 6 km WNW of Warren, Oregon
  14. 1.5 5 km WSW of Yacolt, Washington
  15. 1.9 14 km NE of Vernonia, 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.