QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

28 km WSW of Neah Bay, Washington

· 8.8 km deep · released about 14 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Clallam County 82 kmJefferson County 118 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 1.8 (ml)
Depth
8.8 km below the surface
Felt
1 report · strongest reported intensity I
Nearest
Clallam County, 82 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 545 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 14 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 1,100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 790,000× the energy of this one
  3. Around the size people start to feel M 3.0 70× the energy of this one
  4. This earthquake M 1.8 about 14 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 48.2513, -124.9743. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Clallam County, WA 82 km (51 mi) WNW of here earthquakes near Clallam County
Jefferson County, WA 118 km (74 mi) WNW of here earthquakes near Jefferson County

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

Aftershocks so far

20 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. 1.6 39 km NNW of Neah Bay, Washington
  4. 1.5 19 km NNW of Forks, Washington
  5. 2.1 26 km W of Forks, Washington
  6. 2.3 33 km NNW of Neah Bay, Washington
  7. 2.5 23 km W of Neah Bay, Washington
  8. 1.6 12 km SW of Neah Bay, Washington
  9. 1.6 7 km WNW of Neah Bay, Washington
  10. 1.8 10 km N of Neah Bay, Washington
  11. 1.9 28 km WSW of Neah Bay, Washington
  12. 1.6 33 km NNW of Neah Bay, Washington
  13. 1.8 10 km WNW of Neah Bay, Washington
  14. 1.9 21 km NNW of Forks, Washington
  15. 1.8 21 km NNW 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 12,000 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.