QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0ml

Earthquake near Sequim, WA

No earthquake was likely felt in Sequim in the 24 hours to 7:09 pm PST (03:09 UTC). The last one was M 4.2, 81 km (50 mi) SSE, at 2:05 pm PDT on 29 September 2026, estimated intensity II (weak) in town; 9,329 felt reports to USGS. Every earthquake near Sequim

This page: a magnitude 2.0 earthquake was recorded 10 km (6 mi) north of Sequim, WA, at 12:37 am PDT on 1 May 2019 (07:37 UTC), 46 km deep.

USGS: 5 km NW of Jamestown, Washington

84 km (52 mi) NW of Seattle, WA

12:37 am PDT, May 1, 2019 · · 46 km deep · released about 30 lb of TNT

10 km30 km60 km120 km N Island County 34 kmSan Juan County 38 kmJefferson County 50 kmClallam County 57 kmKitsap County 69 kmMason County 91 kmSnohomish County 102 kmSkagit County 103 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
12:37 am PDT on 1 May 2019 ()
Where
10 km (6 mi) north of Sequim, WA · earthquakes near Sequim
Magnitude
M 2.0 (ml)
Depth
46 km below the surface
Felt
no reports yet
Nearest
Island County, 34 km E
Nearest mapped fault
Southern Whidbey Island fault, 13 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 2753 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. In Sequim, 10 km away, the estimate is intensity II (weak). 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: Port Angeles East, Port Angeles, Port Townsend, Port Hadlock-Irondale.

How big was it?

This earthquake released about 30 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 350,000× the energy of this one
  3. Around the size people start to feel M 3.0 32× the energy of this one
  4. This earthquake M 2.0 about 30 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 one earthquake of M5 or more within 50 km:

  1. 5.3 Eastern Olympic Peninsula, Washington · 42 km SSE 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 48.1673, -123.1263. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Island County, WA 34 km (21 mi) E earthquakes near Island County
San Juan County, WA 38 km (24 mi) N earthquakes near San Juan County
Jefferson County, WA 50 km (31 mi) SW earthquakes near Jefferson County
Clallam County, WA 57 km (35 mi) W earthquakes near Clallam County
Kitsap County, WA 69 km (43 mi) SSE earthquakes near Kitsap County
Mason County, WA 91 km (56 mi) S earthquakes near Mason County

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

Aftershocks so far

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

  1. 3.0 6 km NE of Oak Bay, Canada
  2. 1.9 7 km NE of Marrowstone, Washington
  3. 2.5 9 km NW of Friday Harbor, Washington
  4. 1.6 13 km W of Coupeville, Washington
  5. 1.8 6 km S of Port Ludlow, Washington
  6. 1.7 4 km NE of Oak Harbor, Washington
  7. 2.2 7 km NNW of Victoria, Canada
  8. 2.1 19 km NNW of Jamestown, Washington
  9. 2.4 5 km E of Quilcene, Washington
  10. 1.7 10 km W of Friday Harbor, Washington
  11. 1.8 9 km NW of Friday Harbor, Washington
  12. 1.9 4 km SSE of Colwood, Canada
  13. 1.6 5 km WSW of Coupeville, Washington
  14. 2.4 11 km W of Ault Field, Washington
  15. 1.9 6 km ENE of Marrowstone, 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.