QuakeIndex

Earthquake · reviewed by a seismologist

M 4.5mwr

46 km WNW of Neah Bay, Washington

· 10 km deep · released about 85 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Clallam County 107 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 4.5 (mwr)
Depth
10 km below the surface
Felt
483 reports · strongest reported intensity IV
Measured shaking
intensity III (ShakeMap)
Tsunami
USGS flagged this event for tsunami evaluation. Follow tsunami.gov for official messages.
Nearest
Clallam County, 107 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1423 days ago

This was a light earthquake. It is usually felt clearly nearby and can rattle windows and dishes, but damage is uncommon. 483 people have reported feeling it to USGS.

How big was it?

This earthquake released about 85 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 5.5 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 2,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 89× the energy of this one
  3. Magna, Utah 2020 M 5.7 63× the energy of this one
  4. This earthquake M 4.5 about 85 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 180× more

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 48.5488, -125.1845. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Clallam County, WA 107 km (67 mi) WNW of here earthquakes near Clallam 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. 1.8 28 km WSW of Neah Bay, Washington
  2. 1.7 35 km NNW of Neah Bay, Washington
  3. 1.7 13 km SE of Ucluelet, Canada
  4. 2.6 34 km WSW of Neah Bay, Washington
  5. 1.6 31 km WSW of Neah Bay, Washington
  6. 2.0 45 km ESE of Ucluelet, Canada
  7. 2.6 26 km S of Ucluelet, Canada
  8. 1.9 3 km NW of Neah Bay, Washington
  9. 1.9 18 km NNW of Neah Bay, Washington
  10. 2.4 33 km NNW of Neah Bay, Washington
  11. 1.8 7 km WNW of Neah Bay, Washington
  12. 1.7 20 km WSW of Neah Bay, Washington
  13. 2.6 21 km WSW of Neah Bay, Washington
  14. 1.7 24 km WSW of Neah Bay, Washington
  15. 2.0 26 km WSW 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.