QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0ml

Earthquake near Lone Pine, CA

No earthquake was likely felt in Lone Pine in the 24 hours to 7:27 am PST (15:27 UTC). The last one was M 2.2, 16 km (10 mi) SE, at 9:24 pm PDT on 29 October 2026, estimated intensity II (weak) in town. Every earthquake near Lone Pine

This page: a magnitude 3.0 earthquake was recorded 12 km (7 mi) southeast of Lone Pine, CA, at 8:32 pm PST on 21 November 2021 (04:32 UTC), 7.6 km deep. 5 people have reported feeling it to USGS.

USGS: 11km SE of Lone Pine, CA

8:32 pm PST, Nov 21, 2021 · · 7.6 km deep · released about 860 lb of TNT

Every earthquake near Lone Pine Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Inyo County 51 kmTulare County 80 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
8:32 pm PST on 21 November 2021 ()
Where
12 km (7 mi) southeast of Lone Pine, CA · earthquakes near Lone Pine
Magnitude
M 3.0 (ml)
Depth
7.6 km below the surface
Felt
5 reports · strongest reported intensity II
Nearest
Inyo County, 51 km E
Nearest mapped fault
Owens Valley fault, under 1 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 1748 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

At this magnitude and depth, people at rest would likely notice it out to about 34 km (21 mi) from the epicentre. In Lone Pine, 12 km away, the estimate is intensity III (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.

Likely felt in: Lone Pine 12 km, intensity III. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 860 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.0 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 390,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 18,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 12,000× the energy of this one
  4. This earthquake M 3.0 about 860 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 5.8 on 2020-06-24 — about 18,000 times the energy of this one.

Before 2016, the USGS record lists 3 earthquakes of M5 or more within 50 km:

  1. 5.5 10 km N of Independence, California · 46 km NNW of this epicentre
  2. 5.2 18km NE of Olancha, CA · 18 km SSE of this epicentre
  3. 5.0 18km NE of Olancha, CA · 19 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 36.5292, -117.9710. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Inyo County, CA 51 km (32 mi) E earthquakes near Inyo County
Tulare County, CA 80 km (50 mi) WSW earthquakes near Tulare County

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

Aftershocks so far

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

  1. 1.7 8km NNE of Olancha, CA
  2. 1.7 11km NE of Coso Junction, CA
  3. 1.8 14km NW of Coso Junction, CA
  4. 2.3 24km NE of Olancha, CA
  5. 1.5 11km NE of Coso Junction, CA
  6. 1.6 7km NE of Coso Junction, CA
  7. 1.5 12km S of Olancha, CA
  8. 1.6 9km ENE of Coso Junction, CA
  9. 2.0 11km ESE of Lone Pine, CA
  10. 1.9 11km ESE of Lone Pine, CA
  11. 2.1 10km ENE of Coso Junction, CA
  12. 1.7 18km NE of Olancha, CA
  13. 1.5 17km SE of Lone Pine, CA
  14. 1.8 10 km SSE of Keeler, California
  15. 1.5 13km S of Olancha, 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.