QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

Earthquake near Ridgecrest, CA

Yes: an earthquake was likely felt in Ridgecrest in the last 24 hours. M 1.5, 7 km (4 mi) E of Ridgecrest, at 3:54 am PST on 12 November 2026 (11:54 UTC); the estimated shaking in Ridgecrest was intensity II (weak). Every earthquake near Ridgecrest

This page: a magnitude 2.1 earthquake was recorded 49 km (30 mi) northeast of Ridgecrest, CA, at 2:12 pm PST on 26 February 2018 (22:12 UTC), 4.7 km deep.

USGS: 21km NNE of Trona, CA

2:12 pm PST, Feb 26, 2018 · · 4.7 km deep · released about 51 lb of TNT

10 km30 km60 km120 km N Inyo County 69 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
2:12 pm PST on 26 February 2018 ()
Where
49 km (30 mi) northeast of Ridgecrest, CA · earthquakes near Ridgecrest
Magnitude
M 2.1 (ml)
Depth
4.7 km below the surface
Felt
no reports yet
Nearest
Inyo County, 69 km N
Nearest mapped fault
Ash Hill fault, 3 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 3181 days ago

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 17 km (11 mi) from the epicentre. In Ridgecrest, 49 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: Searles Valley.

How big was it?

This earthquake released about 51 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 300,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 210,000× the energy of this one
  3. Around the size people start to feel M 3.0 19× the energy of this one
  4. This earthquake M 2.1 about 51 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

The largest earthquake within 50 km since 2016 was M 4.1 on 2017-08-22 — about 900 times the energy of this one.

Before 2016, the USGS record lists 12 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.0 Death Valley area, California · 28 km ENE of this epicentre
  2. 5.9 Death Valley area, California · 28 km ENE of this epicentre
  3. 5.8 16km NNE of Ridgecrest, California · 37 km WSW of this epicentre
  4. 5.4 17km N of Ridgecrest, California · 38 km WSW of this epicentre
  5. 5.3 27km E of Coso Junction, California · 35 km WNW 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 35.9448, -117.2992. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Inyo County, CA 69 km (43 mi) N earthquakes near Inyo County

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

Aftershocks so far

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

  1. 1.7 16km NE of Little Lake, CA
  2. 1.7 18km SE of Ridgecrest, CA
  3. 1.6 39km SSW of Furnace Creek, CA
  4. 1.8 14km SE of Little Lake, CA
  5. 1.9 43km SW of Stovepipe Wells, CA
  6. 1.6 37km ENE of Coso Junction, CA
  7. 1.5 30km NNW of Searles Valley, CA
  8. 1.9 12km E of Coso Junction, CA
  9. 2.0 13km WSW of Searles Valley, CA
  10. 1.6 16km NE of Little Lake, CA
  11. 1.7 30km E of Coso Junction, CA
  12. 2.0 11km NE of Ridgecrest, CA
  13. 1.6 37km ENE of Coso Junction, CA
  14. 1.6 33km ENE of Coso Junction, CA
  15. 1.6 16km NE of Little Lake, 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.