explosion · reviewed by a seismologist
M 1.9md
Earthquake near Tanglewilde-Thompson Place, WA
No earthquake was likely felt in Tanglewilde-Thompson Place in the 24 hours to 7:20 am PST (15:20 UTC). The last one was M 4.2, 39 km (24 mi) N, at 2:05 pm PDT on 29 September 2026, estimated intensity III (weak) in town; 9,329 felt reports to USGS. Every earthquake near Tanglewilde-Thompson Place
No: USGS classifies this as a explosion, not an earthquake. A magnitude 1.9 explosion was recorded 2 km (1 mi) northeast of Tanglewilde-Thompson Place, WA, at 1:15 pm PDT on 15 June 2022 (20:15 UTC), less than 1 km deep.
USGS: 2 km NE of Tanglewilde-Thompson Place, Washington
in Lacey, WA · 69 km (43 mi) SSW of Seattle, WA
- When
- 1:15 pm PDT on 15 June 2022 ()
- Where
- 2 km (1 mi) northeast of Tanglewilde-Thompson Place, WA · earthquakes near Tanglewilde-Thompson Place
- Magnitude
- M 1.9 (md)
- Depth
- -0.3 km below the surface
- Felt
- no reports yet
- Nearest
- Thurston County, 15 km SSW
- Nearest mapped fault
- Olympia structure, 7 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 1611 days ago
Earthquake alerts for Tanglewilde-Thompson Place, WA
Get a notification in this browser when USGS records an earthquake near Tanglewilde-Thompson Place, WA. No account or email needed.
Alerts are on for .
Not a warning. An alert comes after USGS publishes a quake, usually minutes after the shaking. For early warning use ShakeAlert, through your phone's Wireless Emergency Alerts or the MyShake app.
This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.
At this magnitude and depth, people at rest would likely notice it out to about 15 km (9 mi) from the epicentre. In Tanglewilde-Thompson Place, 2 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: Tanglewilde, Lacey, DuPont, Olympia, Tumwater, North Fort Lewis.
USGS catalogues this as explosion, not an earthquake.
How big was it?
This earthquake released about 25 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.
- Mineral, Virginia 2011 M 5.8 620,000× the energy of this one
- Magna, Utah 2020 M 5.7 440,000× the energy of this one
- Around the size people start to feel M 3.0 39× the energy of this one
- This earthquake M 1.9 about 25 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 6 earthquakes of M5 or more within 50 km; the five largest:
- 6.8 The 2001 Nisqually, Washington Earthquake · 10 km NNE of this epicentre
- 6.7 4 km WNW of Roy, Washington · 13 km ESE of this epicentre
- 6.7 1 km ENE of Dash Point, Washington · 39 km NE of this epicentre
- 6.1 Puget Sound region, Washington · 38 km N of this epicentre
- 5.8 Puget Sound area, Washington · 26 km NNW 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 47.0623, -122.7577. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Thurston County, WA | 15 km (9 mi) | SSW | earthquakes near Thurston County |
| Mason County, WA | 45 km (28 mi) | NW | earthquakes near Mason County |
| Pierce County, WA | 46 km (28 mi) | E | earthquakes near Pierce County |
| Lewis County, WA | 61 km (38 mi) | SSE | earthquakes near Lewis County |
| Kitsap County, WA | 65 km (40 mi) | N | earthquakes near Kitsap County |
| Grays Harbor County, WA | 81 km (50 mi) | W | earthquakes near Grays Harbor County |
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.
- 1.7 7 km SSW of Shelton, Washington
- 1.6 5 km WSW of La Grande, Washington
- 1.6 2 km NW of Oakville, Washington
- 1.7 0 km S of Belfair, Washington
- 2.0 1 km SSE of Dash Point, Washington
- 1.7 4 km WNW of Vashon, Washington
- 1.5 1 km NNW of Oakville, Washington
- 1.9 10 km WNW of Allyn, Washington
- 1.6 8 km WSW of Tumwater, Washington
- 1.6 2 km E of Oakville, Washington
- 3.1 Puget Sound region, Washington
- 1.5 10 km ESE of Centralia, Washington
- 2.1 10 km WNW of Longbranch, Washington
- 1.6 1 km SSE of Kapowsin, Washington
- 1.8 Olympic Peninsula, 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
- 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.