QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3ml

Earthquake near Inyokern, CA

No earthquake was likely felt in Inyokern in the 24 hours to 10:36 am PST (18:36 UTC). The last one was M 3.2, 38 km (23 mi) S, at 8:01 am PDT on 23 September 2026, estimated intensity II (weak) in town; 3 felt reports to USGS. Every earthquake near Inyokern

This page: a magnitude 2.3 earthquake was recorded 49 km (30 mi) north of Inyokern, CA, at 8:41 pm PDT on 25 June 2020 (03:41 UTC), 2.9 km deep.

USGS: 7km NE of Coso Junction, CA

8:41 pm PDT, Jun 25, 2020 · · 2.9 km deep · released about 72 lb of TNT

Every earthquake near Inyokern Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Inyo County 68 kmTulare County 82 kmKern County 112 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
8:41 pm PDT on 25 June 2020 ()
Where
49 km (30 mi) north of Inyokern, CA · earthquakes near Inyokern
Magnitude
M 2.3 (ml)
Depth
2.9 km below the surface
Felt
no reports yet
Nearest
Inyo County, 68 km NE
Nearest mapped fault
Southern Sierra Nevada fault, 10 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 1648 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 19 km (12 mi) from the epicentre. In Inyokern, 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.

How big was it?

This earthquake released about 72 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 210,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 150,000× the energy of this one
  3. Around the size people start to feel M 3.0 13× the energy of this one
  4. This earthquake M 2.3 about 72 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 7.1 on 2019-07-06 — about 19,000,000 times the energy of this one.

Before 2016, the USGS record lists 18 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.3 The 1946 Walker Pass, California Earthquake · 43 km S of this epicentre
  2. 5.8 16km NNE of Ridgecrest, California · 42 km SSE of this epicentre
  3. 5.4 14km NW of Inyokern, CA · 40 km S of this epicentre
  4. 5.4 4km N of Inyokern, CA · 45 km S of this epicentre
  5. 5.4 17km N of Ridgecrest, California · 40 km SSE 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 36.0838, -117.8823. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Inyo County, CA 68 km (42 mi) NE earthquakes near Inyo County
Tulare County, CA 82 km (51 mi) WNW earthquakes near Tulare County
Kern County, CA 112 km (70 mi) SW earthquakes near Kern County

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

Aftershocks so far

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

  1. 2.2 18km NNE of Olancha, CA
  2. 2.0 17km SSE of Lone Pine, CA
  3. 1.9 13km SE of Lone Pine, CA
  4. 2.4 16km SE of Lone Pine, CA
  5. 1.6 19km SE of Lone Pine, CA
  6. 1.5 15 km SSE of Lone Pine, CA
  7. 1.5 17 km SSE of Lone Pine, CA
  8. 1.6 17km SSE of Lone Pine, CA
  9. 1.6 17 km SSE of Lone Pine, CA
  10. 2.0 14km SSE of Lone Pine, CA
  11. 2.2 18km SSE of Lone Pine, CA
  12. 1.5 12km N of Coso Junction, CA
  13. 1.8 9km NE of Coso Junction, CA
  14. 2.9 18km E of Little Lake, CA
  15. 1.8 13km SE of Lone Pine, 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.