QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

10 km SSE of Neah Bay, Washington

· 30 km deep · released about 5.9 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Clallam County 55 kmJefferson County 95 kmSan Juan County 113 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 1.5 (ml)
Depth
30 km below the surface
Felt
no reports yet
Nearest
Clallam County, 55 km ESE
Nearest mapped fault
Calawah fault, 2 km from its surface trace — near is not the same as on
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 633 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 5.9 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 2,500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,800,000× the energy of this one
  3. Around the size people start to feel M 3.0 160× the energy of this one
  4. This earthquake M 1.5 about 5.9 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 48.2738, -124.5893. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Clallam County, WA 55 km (34 mi) WNW of here earthquakes near Clallam County
Jefferson County, WA 95 km (59 mi) NW of here earthquakes near Jefferson County
San Juan County, WA 113 km (70 mi) WSW of here earthquakes near San Juan County
Mason County, WA 147 km (92 mi) NW of here earthquakes near Mason County

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

Aftershocks so far

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

  1. 2.1 26 km W of Forks, Washington
  2. 2.3 33 km NNW of Neah Bay, Washington
  3. 2.5 23 km W of Neah Bay, Washington
  4. 1.6 11 km E of Forks, Washington
  5. 1.6 12 km SW of Neah Bay, Washington
  6. 1.6 7 km WNW of Neah Bay, Washington
  7. 1.8 10 km N of Neah Bay, Washington
  8. 1.9 28 km WSW of Neah Bay, Washington
  9. 1.6 33 km NNW of Neah Bay, Washington
  10. 1.8 10 km WNW of Neah Bay, Washington
  11. 1.6 4 km WSW of Forks, Washington
  12. 3.7 17 km NNW of Sekiu, Washington
  13. 1.9 21 km NNW of Forks, Washington
  14. 1.8 21 km NNW of Forks, Washington
  15. 1.6 5 km N of Neah Bay, 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.