QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

Earthquake near Freeland, WA

No earthquake was likely felt in Freeland in the 24 hours to 3:28 am PST (11:28 UTC). The last one was M 4.2, 69 km (43 mi) SSW, at 2:05 pm PDT on 29 September 2026, estimated intensity II (weak) in town; 9,329 felt reports to USGS. Every earthquake near Freeland

This page: a magnitude 1.9 earthquake was recorded in Freeland, WA, at 11:18 am PDT on 14 September 2018 (18:18 UTC), 56 km deep.

USGS: 1 km WSW of Freeland, Washington

45 km (28 mi) NNW of Seattle, WA · 27 km (17 mi) W of Everett, WA

11:18 am PDT, Sep 14, 2018 · · 56 km deep · released about 20 lb of TNT

10 km30 km60 km120 km N Island County 19 kmKitsap County 41 kmSnohomish County 58 kmSan Juan County 69 kmJefferson County 76 kmSkagit County 77 kmKing County 78 kmMason County 87 kmClallam County 101 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
11:18 am PDT on 14 September 2018 ()
Where
in Freeland, WA · earthquakes near Freeland
Magnitude
M 1.9 (ml)
Depth
56 km below the surface
Felt
no reports yet
Nearest
Island County, 19 km NNW
Nearest mapped fault
Southern Whidbey Island fault, 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 2980 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth it was probably too small to be felt, even directly above it. Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

Earthquakes near other towns within 30 km: Hansville, Langley, Port Ludlow, Tulalip Bay, Port Hadlock-Irondale, Camano.

How big was it?

This earthquake released about 20 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 5.8 760,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 540,000× the energy of this one
  3. Around the size people start to feel M 3.0 48× the energy of this one
  4. This earthquake M 1.9 about 20 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.

For this area

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record lists 3 earthquakes of M5 or more within 50 km:

  1. 5.3 Eastern Olympic Peninsula, Washington · 41 km SW of this epicentre
  2. 5.0 4 km ENE of Machias, Washington · 41 km E of this epicentre
  3. 5.0 6 km W of Conway, Washington · 37 km NNE of this epicentre

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 48.0053, -122.5457. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Island County, WA 19 km (12 mi) NNW earthquakes near Island County
Kitsap County, WA 41 km (26 mi) S earthquakes near Kitsap County
Snohomish County, WA 58 km (36 mi) E earthquakes near Snohomish County
San Juan County, WA 69 km (43 mi) NW earthquakes near San Juan County
Jefferson County, WA 76 km (48 mi) WSW earthquakes near Jefferson County
Skagit County, WA 77 km (48 mi) NE earthquakes near Skagit County

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

Aftershocks so far

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

  1. 2.3 4 km SSW of Roosevelt, Washington
  2. 1.6 4 km E of Cathcart, Washington
  3. 2.0 4 km E of Cathcart, Washington
  4. 1.8 3 km SSW of Roosevelt, Washington
  5. 1.7 3 km SSW of Roosevelt, Washington
  6. 1.8 4 km SSW of Roosevelt, Washington
  7. 3.5 3 km SSW of Roosevelt, Washington
  8. 4.6 2 km S of Roosevelt, Washington
  9. 1.7 3 km SSW of Big Lake, Washington
  10. 1.6 5 km NNE of Kingston, Washington
  11. 2.6 3 km WSW of Erlands Point-Kitsap Lake, Washington
  12. 2.3 4 km N of Port Townsend, Washington
  13. 1.9 1 km N of Enetai, Washington
  14. 2.0 0 km ESE of Erlands Point-Kitsap Lake, Washington
  15. 2.0 3 km SW of Mount Vernon, 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.