QuakeIndex

Earthquake · reviewed by a seismologist

M 1.0md

6 km SE of McCleary, Washington

· -0.2 km deep · released about 0.89 lb of TNT

10 km30 km60 km120 km N Thurston County 30 kmMason County 39 kmGrays Harbor County 49 kmPacific County 66 kmLewis County 79 kmPierce County 80 kmWahkiakum County 81 kmKitsap County 82 kmJefferson County 92 km
Distance rings around the epicentre, with the nearest towns at their true direction. Not a shaking map — see the USGS ShakeMap for that.
When
Magnitude
M 1.0 (md)
Depth
-0.2 km below the surface
Felt
no reports yet
Nearest
Thurston County, 30 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 24 hours 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 0.89 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 17,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 12,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 1,100× the energy of this one
  4. This earthquake M 1.0 about 0.89 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 47.0052, -123.2058. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Thurston County, WA 30 km (18 mi) WNW of here earthquakes near Thurston County
Mason County, WA 39 km (24 mi) S of here earthquakes near Mason County
Grays Harbor County, WA 49 km (30 mi) ESE of here earthquakes near Grays Harbor County
Pacific County, WA 66 km (41 mi) NE of here earthquakes near Pacific County
Lewis County, WA 79 km (49 mi) NW of here earthquakes near Lewis County
Pierce County, WA 80 km (50 mi) W of here earthquakes near Pierce County

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

Aftershocks so far

No further earthquakes have been recorded within 50 km since this one.

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.