Earthquake · reviewed by a seismologist
M 3.4ml
Earthquake near Aberdeen, WA
No earthquake was likely felt in Aberdeen in the 24 hours to 8:55 am PST (16:55 UTC). The last one was M 4.2, 95 km (59 mi) ENE, at 2:05 pm PDT on 29 September 2026, estimated intensity II (weak) in town; 9,329 felt reports to USGS. Every earthquake near Aberdeen
This page: a magnitude 3.4 earthquake was recorded 25 km (16 mi) northwest of Aberdeen, WA, at 4:11 am PDT on 21 May 2019 (11:11 UTC), 34 km deep. 39 people have reported feeling it to USGS.
USGS: 6 km E of Copalis Beach, Washington
- When
- 4:11 am PDT on 21 May 2019 ()
- Where
- 25 km (16 mi) northwest of Aberdeen, WA · earthquakes near Aberdeen
- Magnitude
- M 3.4 (ml)
- Depth
- 34 km below the surface
- Felt
- 39 reports · strongest reported intensity IV
- Measured shaking
- intensity III (ShakeMap)
- Nearest
- Grays Harbor County, 19 km E
- Nearest mapped fault
- Langley Hill fault, under 1 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 2648 days ago
Earthquake alerts for Aberdeen, WA
Get a notification in this browser when USGS records an earthquake near Aberdeen, 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 small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.
At this magnitude and depth, people at rest would likely notice it out to about 45 km (28 mi) from the epicentre. In Aberdeen, 25 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: Ocean Shores, Hoquiam, Westport, Cosmopolis.
How big was it?
This earthquake released about 1.8 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.4 would have released about 32 times as much.
- Northridge, California 1994 M 6.7 95,000× the energy of this one
- Mineral, Virginia 2011 M 5.8 4,300× the energy of this one
- Magna, Utah 2020 M 5.7 3,000× the energy of this one
- This earthquake M 3.4 about 1.8 tons of TNT
- Around the size people start to feel M 3.0 this one released 3.7× more
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 2 earthquakes of M5 or more within 50 km:
- 5.8 8 km N of Satsop, Washington · 47 km E of this epicentre
- 5.0 18 km N of Satsop, Washington · 44 km E 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 47.1138, -124.0837. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Grays Harbor County, WA | 19 km (12 mi) | E | earthquakes near Grays Harbor County |
| Pacific County, WA | 66 km (41 mi) | SSE | earthquakes near Pacific County |
| Mason County, WA | 74 km (46 mi) | ENE | earthquakes near Mason County |
| Jefferson County, WA | 88 km (54 mi) | NNE | earthquakes near Jefferson County |
| Thurston County, WA | 97 km (60 mi) | ESE | earthquakes near Thurston County |
| Wahkiakum County, WA | 104 km (65 mi) | SSE | earthquakes near Wahkiakum County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
54 earthquakes have been recorded within 50 km since this one.
- 2.1 7 km ENE of Santiago, Washington
- 2.0 14 km SSE of Cosmopolis, Washington
- 1.7 12 km SSE of Cosmopolis, Washington
- 1.6 24 km ESE of Neilton, Washington
- 1.8 5 km WSW of Aberdeen Gardens, Washington
- 1.6 2 km ENE of Humptulips, Washington
- 2.1 14 km W of Neilton, Washington
- 1.7 8 km WNW of Taholah, Washington
- 1.8 11 km ENE of Copalis Beach, Washington
- 1.5 8 km SSW of Cosmopolis, Washington
- 2.2 2 km NW of Markham, Washington
- 2.4 6 km SSW of Neilton, Washington
- 1.7 16 km E of Humptulips, Washington
- 2.7 7 km NNW of Montesano, Washington
- 1.6 1 km NNE of Humptulips, 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.