Earthquake · reviewed by a seismologist
M 1.6ml
Earthquake near Maple Valley, WA
No earthquake was likely felt in Maple Valley in the 24 hours to 7:04 pm PST (03:04 UTC). The last one was M 4.2, 51 km (32 mi) W, at 2:05 pm PDT on 29 September 2026, estimated intensity II (weak) in town; 9,329 felt reports to USGS. Every earthquake near Maple Valley
This page: a magnitude 1.6 earthquake was recorded 48 km (30 mi) east-southeast of Maple Valley, WA, at 8:58 am PST on 18 February 2019 (16:58 UTC), 8.0 km deep.
USGS: 13 km S of Snoqualmie Pass, Washington
79 km (49 mi) ESE of Seattle, WA · 58 km (36 mi) SE of Sammamish, WA
- When
- 8:58 am PST on 18 February 2019 ()
- Where
- 48 km (30 mi) east-southeast of Maple Valley, WA · earthquakes near Maple Valley
- Magnitude
- M 1.6 (ml)
- Depth
- 8.0 km below the surface
- Felt
- no reports yet
- Nearest
- King County, 39 km NW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2825 days ago
Earthquake alerts for Maple Valley, WA
Get a notification in this browser when USGS records an earthquake near Maple Valley, 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 8 km (5 mi) from the epicentre. In Maple Valley, 48 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.
How big was it?
This earthquake released about 7.1 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 2,100,000× the energy of this one
- Magna, Utah 2020 M 5.7 1,500,000× the energy of this one
- Around the size people start to feel M 3.0 130× the energy of this one
- This earthquake M 1.6 about 7.1 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 since 1900 lists no earthquake of M5 or more within 50 km.
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 47.2755, -121.4313. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| King County, WA | 39 km (24 mi) | NW | earthquakes near King County |
| Kittitas County, WA | 59 km (37 mi) | ESE | earthquakes near Kittitas County |
| Pierce County, WA | 60 km (37 mi) | WSW | earthquakes near Pierce County |
| Chelan County, WA | 89 km (55 mi) | NE | earthquakes near Chelan County |
| Snohomish County, WA | 90 km (56 mi) | NNW | earthquakes near Snohomish County |
| Kitsap County, WA | 100 km (62 mi) | WNW | earthquakes near Kitsap County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
40 earthquakes have been recorded within 50 km since this one.
- 1.9 7 km ENE of Fall City, Washington
- 1.8 2 km NE of Mirrormont, Washington
- 1.6 3 km NW of Snoqualmie Pass, Washington
- 1.8 1 km S of Snoqualmie, Washington
- 2.2 8 km E of Carnation, Washington
- 1.6 5 km WSW of North Bend, Washington
- 1.7 12 km W of Greenwater, Washington
- 1.6 3 km NE of Mirrormont, Washington
- 1.7 8 km SSW of Baring, Washington
- 2.0 14 km ENE of Tanner, Washington
- 1.6 6 km NE of Fall City, Washington
- 1.9 12 km W of Greenwater, Washington
- 1.5 14 km S of Skykomish, Washington
- 2.7 5 km NE of Fall City, Washington
- 1.9 12 km ENE of Enumclaw, 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.