QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

Earthquake near Mount Hood Village, OR

USGS: Washington-Oregon border region

75 km (47 mi) ESE of Portland, OR · 59 km (36 mi) ESE of Gresham, OR

10:03 am PDT, Jul 9, 2019 · · 3.5 km deep · released about 15 lb of TNT

Every earthquake near Mount Hood Village Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Hood River County 22 kmClackamas County 40 kmWasco County 48 kmMultnomah County 59 kmClark County 77 kmSkamania County 80 kmMarion County 81 kmSherman County 83 kmJefferson 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
10:03 am PDT on 9 July 2019 ()
Where
20 km (12 mi) E of Mount Hood Village, OR · earthquakes near Mount Hood Village
Magnitude
M 1.8 (ml)
Depth
3.5 km below the surface
Felt
no reports yet
Nearest
Hood River County, 22 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2642 days ago

A magnitude 1.8 earthquake was recorded 20 km (12 mi) E of Mount Hood Village, OR, at 10:03 am PDT on 9 July 2019 (17:03 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 15 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 710,000× the energy of this one
  3. Around the size people start to feel M 3.0 63× the energy of this one
  4. This earthquake M 1.8 about 15 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.

Where

Epicentre 45.3248, -121.7340. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Hood River County, OR 22 km (13 mi) NNE earthquakes near Hood River County
Clackamas County, OR 40 km (25 mi) WSW earthquakes near Clackamas County
Wasco County, OR 48 km (30 mi) ESE earthquakes near Wasco County
Multnomah County, OR 59 km (37 mi) WNW earthquakes near Multnomah County
Clark County, WA 77 km (48 mi) NW earthquakes near Clark County
Skamania County, WA 80 km (50 mi) NNW earthquakes near Skamania County

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

Aftershocks so far

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

  1. 3.9 6 km NE of Government Camp, Oregon
  2. 1.6 6 km NE of Government Camp, Oregon
  3. 1.5 6 km NE of Government Camp, Oregon
  4. 1.7 5 km ESE of Pine Grove, Oregon
  5. 3.5 0 km SE of Parkdale, Oregon
  6. 1.7 6 km ENE of Government Camp, Oregon
  7. 1.6 5 km ENE of Government Camp, Oregon
  8. 1.5 6 km ENE of Government Camp, Oregon
  9. 1.9 6 km ENE of Government Camp, Oregon
  10. 2.1 5 km ENE of Government Camp, Oregon
  11. 1.6 5 km ENE of Government Camp, Oregon
  12. 1.7 5 km ENE of Government Camp, Oregon
  13. 1.6 5 km NE of Government Camp, Oregon
  14. 2.7 4 km ENE of Government Camp, Oregon
  15. 1.7 6 km ENE of Government Camp, 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.