Earthquake near Elma, WA

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 Elma, 4 km away, the estimate is intensity I (not felt). 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: McCleary, Montesano, Central Park, Shelton, Rochester.

How big was it?

This earthquake released about 11 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

1. Mineral, Virginia 2011 M 5.8 1,400,000× the energy of this one
2. Magna, Utah 2020 M 5.7 1,000,000× the energy of this one
3. Around the size people start to feel M 3.0 89× the energy of this one
4. This earthquake M 1.7 about 11 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 5 earthquakes of M5 or more within 50 km:

1. 6.8 The 2001 Nisqually, Washington Earthquake · 50 km ENE of this epicentre Feb 28, 2001
2. 5.8 Puget Sound area, Washington · 45 km NE of this epicentre Feb 15, 1946
3. 5.8 8 km N of Satsop, Washington · 10 km NW of this epicentre Jul 3, 1999
4. 5.1 Olympic Peninsula, Washington · 20 km N of this epicentre Oct 27, 1940
5. 5.0 18 km N of Satsop, Washington · 19 km NW of this epicentre Jun 10, 2001

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 47.0230, -123.3575. Map © OpenStreetMap contributors.

Nearby places

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

Aftershocks so far

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

1. 1.5 17 km NNW of Pe Ell, Washington 17:12 UTC
2. 2.0 14 km SSE of Cosmopolis, Washington 23:57 UTC
3. 1.6 3 km SSW of Shelton, Washington 15:34 UTC
4. 1.7 12 km SSE of Cosmopolis, Washington 22:08 UTC
5. 1.6 15 km N of Satsop, Washington 01:48 UTC
6. 1.6 24 km ESE of Neilton, Washington 13:37 UTC
7. 1.8 5 km WSW of Aberdeen Gardens, Washington 06:53 UTC
8. 1.6 2 km NNE of Raymond, Washington 21:18 UTC
9. 1.7 9 km ENE of McCleary, Washington 20:29 UTC
10. 1.6 7 km SSW of Shelton, Washington 22:51 UTC
11. 1.6 2 km N of McCleary, Washington 23:10 UTC
12. 1.9 7 km W of Shelton, Washington 05:47 UTC
13. 1.5 17 km SSE of Montesano, Washington 00:16 UTC
14. 1.6 5 km NW of Pe Ell, Washington 18:59 UTC
15. 1.6 11 km S of Shelton, Washington 23:30 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 06:52 UTC. QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.

On USGS

• The official USGS event page — the source of record for every value above
• Did you feel it? Report it to USGS — reports go to USGS, not to us
• ShakeMap for this event, when USGS has produced one

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.