QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

36 km SW of Neah Bay, Washington

· 6.3 km deep · released about 12 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Clallam County 80 kmJefferson 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 1.7 (ml)
Depth
6.3 km below the surface
Felt
no reports yet
Nearest
Clallam County, 80 km E
Nearest mapped fault
Cascadia fold and fault belt, 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 512 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 48.1328, -124.9687. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Clallam County, WA 80 km (50 mi) W of here earthquakes near Clallam County
Jefferson County, WA 113 km (70 mi) WNW of here earthquakes near Jefferson County
Grays Harbor County, WA 142 km (88 mi) NW of here earthquakes near Grays Harbor County

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

Aftershocks so far

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

  1. 0.6 12 km SSE of Neah Bay, Washington
  2. 0.7 12 km SSE of Neah Bay, Washington
  3. 1.5 19 km NNW of Forks, Washington
  4. 2.1 26 km W of Forks, Washington
  5. 2.5 23 km W of Neah Bay, Washington
  6. 1.6 12 km SW of Neah Bay, Washington
  7. 1.6 7 km WNW of Neah Bay, Washington
  8. 1.8 10 km N of Neah Bay, Washington
  9. 1.9 28 km WSW of Neah Bay, Washington
  10. 1.8 10 km WNW of Neah Bay, Washington
  11. 1.6 4 km WSW of Forks, Washington
  12. 1.9 21 km NNW of Forks, Washington
  13. 1.8 21 km NNW of Forks, Washington
  14. 1.6 5 km N of Neah Bay, Washington
  15. 1.6 4 km WSW of Forks, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.5 on 2020-01-24 — it released about 14,000 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.