QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5md

11 km NW of Crescent City, CA

· 0.8 km deep · released about 180 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Del Norte County 28 kmCurry County 72 kmJosephine County 87 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
Magnitude
M 2.5 (md)
Depth
0.8 km below the surface
Felt
2 reports · strongest reported intensity II
Nearest
Del Norte County, 28 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 970 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 2 people have reported feeling it to USGS.

How big was it?

This earthquake released about 180 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 83,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 59,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.2× the energy of this one
  4. This earthquake M 2.5 about 180 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.

Where

Epicentre 41.8252, -124.3018. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Del Norte County, CA 28 km (17 mi) WNW of here earthquakes near Del Norte County
Curry County, OR 72 km (45 mi) S of here earthquakes near Curry County
Josephine County, OR 87 km (54 mi) SW of here earthquakes near Josephine County

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

Aftershocks so far

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

  1. 1.6 23 km WSW of Brookings, Oregon
  2. 2.3 7 km E of Pistol River, Oregon
  3. 1.6 7 km ESE of Pistol River, Oregon
  4. 1.6 6 km E of Pistol River, Oregon
  5. 1.8 6 km E of Pistol River, Oregon
  6. 1.6 8 km E of Pistol River, Oregon
  7. 1.7 7 km E of Pistol River, Oregon
  8. 1.8 15 km SSW of Pistol River, Oregon
  9. 1.9 7 km NE of Harbor, Oregon
  10. 3.0 6 km E of Pistol River, Oregon
  11. 1.8 13 km NNW of Brookings, Oregon
  12. 1.6 15 km SW of Pistol River, Oregon
  13. 2.4 14 km SSW of Crescent City, CA
  14. 1.8 12 km SSW of Brookings, Oregon
  15. 2.5 14 km SSW of Bertsch-Oceanview, CA

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.