Earthquake near McCleary, WA

A magnitude 1.5 earthquake was recorded 10 km (6 mi) ENE of McCleary, WA, at 3:09 pm PDT on 27 July 2017 (22:09 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

Earthquakes near other towns within 30 km: Shelton, Olympia, Tumwater, Elma, Lacey, Tanglewilde.

USGS catalogues this as explosion, not an earthquake.

How big was it?

This earthquake released about 5.9 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

1. Mineral, Virginia 2011 M 5.8 2,500,000× the energy of this one
2. Magna, Utah 2020 M 5.7 1,800,000× the energy of this one
3. Around the size people start to feel M 3.0 160× the energy of this one
4. This earthquake M 1.5 about 5.9 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

The largest earthquake within 50 km since 2016 was M 4.1 on 2017-02-23 — about 6,900 times the energy of this one.

Before 2016, the USGS record lists 7 earthquakes of M5 or more within 50 km; the five largest:

1. 6.8 The 2001 Nisqually, Washington Earthquake · 32 km ENE of this epicentre Feb 28, 2001
2. 6.7 4 km WNW of Roy, Washington · 42 km E of this epicentre Apr 13, 1949
3. 6.1 Puget Sound region, Washington · 46 km NE of this epicentre Nov 13, 1939
4. 5.8 Puget Sound area, Washington · 29 km NE of this epicentre Feb 15, 1946
5. 5.8 8 km N of Satsop, Washington · 24 km W of this epicentre Jul 3, 1999

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 47.0832, -123.1453. Map © OpenStreetMap contributors.

Nearby places

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

Aftershocks so far

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

1. 1.6 2 km WSW of Home, Washington 15:54 UTC
2. 2.7 3 km S of Home, Washington 13:34 UTC
3. 2.2 5 km SE of Shelton, Washington 00:26 UTC
4. 1.6 Puget Sound region, Washington 22:53 UTC
5. 1.8 11 km S of Shelton, Washington 18:48 UTC
6. 1.9 20 km SE of Neilton, Washington 00:08 UTC
7. 2.2 13 km NW of Hoodsport, Washington 02:38 UTC
8. 2.0 11 km SSW of Shelton, Washington 20:12 UTC
9. 1.7 4 km S of Skokomish, Washington 21:09 UTC
10. 2.1 2 km S of Grapeview, Washington 17:35 UTC
11. 1.7 3 km ESE of Belfair, Washington 01:37 UTC
12. 1.7 3 km WNW of Belfair, Washington 00:12 UTC
13. 2.1 1 km NNW of Artondale, Washington 01:03 UTC
14. 1.7 18 km N of Satsop, Washington 00:56 UTC
15. 1.8 3 km E of Home, Washington 01:58 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 02:53 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.