QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4ml

Earthquake near Crescent City, CA

USGS: 14 km SSW of Crescent City, California

12:54 pm PDT, Sep 14, 2019 · · -0.7 km deep · released about 140 lb of TNT

Every earthquake near Crescent City Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Del Norte County 26 kmCurry County 93 kmJosephine County 101 kmHumboldt County 107 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
12:54 pm PDT on 14 September 2019 ()
Where
14 km (9 mi) SSW of Crescent City, CA · earthquakes near Crescent City
Magnitude
M 2.4 (ml)
Depth
-0.7 km below the surface
Felt
no reports yet
Nearest
Del Norte County, 26 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2572 days ago

A magnitude 2.4 earthquake was recorded 14 km (9 mi) SSW of Crescent City, CA, at 12:54 pm PDT on 14 September 2019 (19:54 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

Earthquakes near other towns within 30 km: Bertsch-Oceanview, Fort Dick.

How big was it?

This earthquake released about 140 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 110,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 78,000× the energy of this one
  3. Around the size people start to feel M 3.0 6.9× the energy of this one
  4. This earthquake M 2.4 about 140 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 one earthquake of M5 or more within 50 km:

  1. 5.9 5 km NNE of Hiouchi, California · 28 km NE 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 41.6328, -124.2538. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Del Norte County, CA 26 km (16 mi) ENE earthquakes near Del Norte County
Curry County, OR 93 km (58 mi) N earthquakes near Curry County
Josephine County, OR 101 km (63 mi) NNE earthquakes near Josephine County
Humboldt County, CA 107 km (66 mi) SSE earthquakes near Humboldt County
Trinity County, CA 145 km (90 mi) SE earthquakes near Trinity County

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

Aftershocks so far

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

  1. 1.6 23 km WSW of Brookings, Oregon
  2. 2.4 20 km SE of Klamath, CA
  3. 3.2 28 km NW of Trinidad, CA
  4. 2.4 14 km SSW of Crescent City, CA
  5. 2.3 17 km NNW of Trinidad, CA
  6. 1.8 12 km SSW of Brookings, Oregon
  7. 2.5 14 km SSW of Bertsch-Oceanview, CA
  8. 1.9 12 km WSW of Smith River, California
  9. 2.8 18 km SSE of Klamath, CA
  10. 2.7 13 km SSW of Bertsch-Oceanview, CA
  11. 2.6 18 km SSW of Brookings, OR
  12. 2.2 6 km W of Klamath, CA
  13. 2.5 17 km SSE of Klamath, CA
  14. 3.0 17 km SSE of Klamath, CA
  15. 1.8 5 km SW of Brookings, Oregon

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.