QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

14 km N of Jamestown, Washington

· 24 km deep · released about 25 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N San Juan County 27 kmIsland County 34 kmJefferson County 60 kmClallam County 61 kmKitsap County 77 kmSkagit County 98 kmMason County 101 kmSnohomish County 101 kmWhatcom 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 1.9 (ml)
Depth
24 km below the surface
Felt
1 report · strongest reported intensity I
Nearest
San Juan County, 27 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 421 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 25 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 5.8 620,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 440,000× the energy of this one
  3. Around the size people start to feel M 3.0 39× the energy of this one
  4. This earthquake M 1.9 about 25 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 48.2612, -123.0977. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
San Juan County, WA 27 km (17 mi) S of here earthquakes near San Juan County
Island County, WA 34 km (21 mi) WNW of here earthquakes near Island County
Jefferson County, WA 60 km (37 mi) NNE of here earthquakes near Jefferson County
Clallam County, WA 61 km (38 mi) ENE of here earthquakes near Clallam County
Kitsap County, WA 77 km (48 mi) NNW of here earthquakes near Kitsap County
Skagit County, WA 98 km (61 mi) WSW of here earthquakes near Skagit County

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

Aftershocks so far

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

  1. 1.6 5 km N of Anacortes, Washington
  2. 2.1 3 km E of Oak Harbor, Washington
  3. 1.9 14 km NNE of Port Angeles East, Washington
  4. 1.6 8 km WNW of Orcas, Washington
  5. 1.7 8 km WNW of Orcas, Washington
  6. 1.8 8 km WNW of Orcas, Washington
  7. 1.9 4 km E of Port Townsend, Washington
  8. 1.8 2 km ESE of Oak Harbor, Washington
  9. 1.9 3 km E of Oak Harbor, Washington
  10. 2.3 3 km ESE of Oak Harbor, Washington
  11. 2.0 2 km E of Oak Harbor, Washington
  12. 2.3 2 km E of Oak Harbor, Washington
  13. 3.8 2 km E of Oak Harbor, Washington
  14. 2.4 2 km ESE of Oak Harbor, Washington
  15. 1.5 2 km E of Oak Harbor, 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 2025-03-03 — it released about 6,900 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.