QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

13 km S of Estacada, Oregon

· 13 km deep · released about 12 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Clackamas County 10 kmMarion County 36 kmMultnomah County 43 kmHood River County 65 kmClark County 69 kmWashington County 75 kmLinn County 77 kmYamhill County 79 kmPolk County 90 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
Magnitude
M 1.7 (ml)
Depth
13 km below the surface
Felt
no reports yet
Nearest
Clackamas County, 10 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1172 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 12 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 870,000× the energy of this one
  3. Around the size people start to feel M 3.0 78× the energy of this one
  4. This earthquake M 1.7 about 12 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 45.1647, -122.3178. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Clackamas County, OR 10 km (6 mi) W of here earthquakes near Clackamas County
Marion County, OR 36 km (22 mi) NE of here earthquakes near Marion County
Multnomah County, OR 43 km (27 mi) S of here earthquakes near Multnomah County
Hood River County, OR 65 km (40 mi) SW of here earthquakes near Hood River County
Clark County, WA 69 km (43 mi) S of here earthquakes near Clark County
Washington County, OR 75 km (46 mi) SE of here earthquakes near Washington 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. 1.7 8 km S of Molalla, Oregon
  2. 1.8 7 km SSE of Molalla, Oregon
  3. 1.6 6 km ESE of Molalla, Oregon
  4. 1.6 4 km SSW of Scotts Mills, Oregon
  5. 1.8 6 km ESE of Molalla, Oregon
  6. 1.5 5 km E of Beavercreek, Oregon
  7. 2.1 7 km ESE of Molalla, Oregon
  8. 1.5 4 km SSW of Scotts Mills, Oregon
  9. 1.5 1 km SSE of Hubbard, Oregon
  10. 1.8 8 km ESE of Scotts Mills, Oregon
  11. 1.6 6 km SSE of Molalla, Oregon
  12. 1.5 27 km NNE of Gates, Oregon
  13. 1.5 2 km WSW of Stafford, Oregon
  14. 1.7 14 km N of Mehama, Oregon
  15. 1.8 10 km ESE of Molalla, 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.