QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

29 km S of Port Angeles East, Washington

· 41 km deep · released about 18 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Jefferson County 11 kmClallam County 48 kmMason County 57 kmKitsap County 60 kmIsland County 64 kmSan Juan County 77 kmGrays Harbor County 88 kmThurston County 109 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 1.9 (ml)
Depth
41 km below the surface
Felt
no reports yet
Nearest
Jefferson County, 11 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3031 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 18 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 840,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 600,000× the energy of this one
  3. Around the size people start to feel M 3.0 53× the energy of this one
  4. This earthquake M 1.9 about 18 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 47.8447, -123.3852. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Jefferson County, WA 11 km (7 mi) ENE of here earthquakes near Jefferson County
Clallam County, WA 48 km (30 mi) SE of here earthquakes near Clallam County
Mason County, WA 57 km (36 mi) NNW of here earthquakes near Mason County
Kitsap County, WA 60 km (37 mi) WNW of here earthquakes near Kitsap County
Island County, WA 64 km (40 mi) WSW of here earthquakes near Island County
San Juan County, WA 77 km (48 mi) SSW of here earthquakes near San Juan County

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

Aftershocks so far

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

  1. 1.7 12 km NNW of Quilcene, Washington
  2. 1.5 14 km ENE of Neilton, Washington
  3. 1.7 2 km S of River Road, Washington
  4. 1.6 22 km NNW of Hoodsport, Washington
  5. 2.4 20 km NNE of Amanda Park, Washington
  6. 1.6 16 km NNW of Jamestown, Washington
  7. 1.7 12 km ENE of Jamestown, Washington
  8. 2.1 32 km S of Port Angeles East, Washington
  9. 1.7 21 km N of Amanda Park, Washington
  10. 1.6 8 km NE of Jamestown, Washington
  11. 2.0 7 km NNE of Jamestown, Washington
  12. 2.6 18 km WSW of Quilcene, Washington
  13. 1.9 6 km WNW of Hoodsport, Washington
  14. 1.7 26 km NW of Hoodsport, Washington
  15. 1.6 10 km SW of Brinnon, 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 4.1 on 2017-02-23 — it released about 2,300 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.