Earthquake · reviewed by a seismologist
M 1.8ml
Earthquake near Carson, WA
No earthquake was likely felt in Carson in the 24 hours to 6:29 am PST (14:29 UTC). The last one was M 1.6, 3 km (2 mi) NW, at 3:08 pm PDT on 25 May 2022, estimated intensity II (weak) in town. Every earthquake near Carson
This page: a magnitude 1.8 earthquake was recorded 11 km (7 mi) north-northwest of Carson, WA, at 9:32 am PDT on 30 April 2024 (16:32 UTC), 9.3 km deep.
USGS: 11 km NNW of Carson, Washington
67 km (42 mi) ENE of Portland, OR · 55 km (34 mi) NE of Gresham, OR
- When
- 9:32 am PDT on 30 April 2024 ()
- Where
- 11 km (7 mi) north-northwest of Carson, WA · earthquakes near Carson
- Magnitude
- M 1.8 (ml)
- Depth
- 9.3 km below the surface
- Felt
- no reports yet
- Nearest
- Skamania County, 24 km NNW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 927 days ago
Earthquake alerts for Carson, WA
Get a notification in this browser when USGS records an earthquake near Carson, 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 10 km (6 mi) from the epicentre. In Carson, 11 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: Stevenson, Cascade Locks.
How big was it?
This earthquake released about 16 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 930,000× the energy of this one
- Magna, Utah 2020 M 5.7 660,000× the energy of this one
- Around the size people start to feel M 3.0 59× the energy of this one
- This earthquake M 1.8 about 16 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 10 earthquakes of M5 or more within 50 km; the five largest:
- 5.7 38 km NNE of Amboy, Washington · 50 km NNW of this epicentre
- 5.2 37 km NNE of Amboy, Washington · 50 km NNW of this epicentre
- 5.1 28 km ENE of Amboy, Washington · 30 km NW of this epicentre
- 5.1 38 km NNE of Amboy, Washington · 50 km NNW of this epicentre
- 5.1 39 km NNE of Amboy, Washington · 50 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 45.8140, -121.8853. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Skamania County, WA | 24 km (15 mi) | NNW | earthquakes near Skamania County |
| Hood River County, OR | 38 km (24 mi) | SSE | earthquakes near Hood River County |
| Clark County, WA | 47 km (29 mi) | W | earthquakes near Clark County |
| Multnomah County, OR | 51 km (32 mi) | SW | earthquakes near Multnomah County |
| Cowlitz County, WA | 75 km (46 mi) | NW | earthquakes near Cowlitz County |
| Clackamas County, OR | 77 km (48 mi) | SSW | earthquakes near Clackamas County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
42 earthquakes have been recorded within 50 km since this one.
- 0.2 37 km NNE of Amboy, Washington
- 0.5 38 km NNE of Amboy, Washington
- 0.6 38 km NNE of Amboy, Washington
- 0.3 32 km NE of Amboy, Washington
- 1.3 38 km NNE of Amboy, Washington
- 0.0 38 km NE of Amboy, Washington
- 1.5 37 km NNE of Amboy, Washington
- 2.2 27 km ENE of Yacolt, Washington
- 2.3 37 km NNE of Amboy, Washington
- 2.6 18 km NE of Amboy, Washington
- 1.5 37 km NNE of Amboy, Washington
- 1.6 38 km NE of Amboy, Washington
- 1.9 38 km NE of Amboy, Washington
- 1.7 4 km NNW of Mount Hood Village, Oregon
- 1.5 2 km SSW of Yacolt, 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.