QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0ml

Earthquake near Longview, WA

No earthquake was likely felt in Longview in the 24 hours to 9:59 pm PST (05:59 UTC). The last one was M 3.0, 29 km (18 mi) SSE, at 7:25 am PDT on 22 October 2026, estimated intensity II (weak) in town; 113 felt reports to USGS. Every earthquake near Longview

This page: a magnitude 2.0 earthquake was recorded in Longview, WA, at 12:26 am PDT on 23 July 2024 (07:26 UTC), 58 km deep.

USGS: 1 km N of Longview, Washington

72 km (45 mi) NNW of Portland, OR

12:26 am PDT, Jul 23, 2024 · · 58 km deep · released about 35 lb of TNT

10 km30 km60 km120 km N Cowlitz County 21 kmColumbia County 26 kmWahkiakum County 41 kmClark County 55 kmClatsop County 61 kmLewis County 64 kmWashington County 68 kmSkamania County 77 kmMultnomah County 79 km
Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.
When
12:26 am PDT on 23 July 2024 ()
Where
in Longview, WA · earthquakes near Longview
Magnitude
M 2.0 (ml)
Depth
58 km below the surface
Felt
no reports yet
Nearest
Cowlitz County, 21 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 843 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth it was probably too small to be felt, even directly above it. 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: Kelso, Longview Heights, West Side Highway, West Longview, Rainier, Castle Rock.

How big was it?

This earthquake released about 35 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 440,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 310,000× the energy of this one
  3. Around the size people start to feel M 3.0 28× the energy of this one
  4. This earthquake M 2.0 about 35 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 46.1533, -122.9385. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Cowlitz County, WA 21 km (13 mi) ENE earthquakes near Cowlitz County
Columbia County, OR 26 km (16 mi) SSW earthquakes near Columbia County
Wahkiakum County, WA 41 km (25 mi) WNW earthquakes near Wahkiakum County
Clark County, WA 55 km (34 mi) SE earthquakes near Clark County
Clatsop County, OR 61 km (38 mi) WSW earthquakes near Clatsop County
Lewis County, WA 64 km (40 mi) NE earthquakes near Lewis County

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

Aftershocks so far

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

  1. 1.9 3 km NW of Winlock, Washington
  2. 1.6 2 km NNE of Columbia City, Oregon
  3. 1.6 3 km W of Yacolt, Washington
  4. 1.7 18 km E of West Side Highway, Washington
  5. 1.6 19 km NE of Kalama, Washington
  6. 1.6 3 km W of Winlock, Washington
  7. 1.6 21 km ENE of Kalama, Washington
  8. 1.5 27 km NNW of Amboy, Washington
  9. 1.9 5 km WSW of Yacolt, Washington
  10. 1.9 4 km WSW of Winlock, Washington
  11. 1.6 31 km N of Amboy, Washington
  12. 1.9 5 km NW of Westport, Oregon
  13. 1.8 9 km W of Napavine, Washington
  14. 1.6 12 km NNE of Amboy, Washington
  15. 1.6 3 km ENE of East Cathlamet, 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

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.