QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

Earthquake near Lone Pine, CA

No earthquake was likely felt in Lone Pine in the 24 hours to 6:58 am PST (14:58 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 2.1 earthquake was recorded 35 km (22 mi) northeast of Lone Pine, CA, at 8:16 pm PST on 8 January 2018 (04:16 UTC), 7.1 km deep.

USGS: 37km NE of Lone Pine, CA

8:16 pm PST, Jan 8, 2018 · · 7.1 km deep · released about 43 lb of TNT

10 km30 km60 km120 km N Inyo County 40 kmEsmeralda County 110 kmTulare 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
8:16 pm PST on 8 January 2018 ()
Where
35 km (22 mi) northeast of Lone Pine, CA · earthquakes near Lone Pine
Magnitude
M 2.1 (ml)
Depth
7.1 km below the surface
Felt
no reports yet
Nearest
Inyo County, 40 km SE
Nearest mapped fault
Hunter Mountain- Saline Valley fault, 13 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 3228 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 16 km (10 mi) from the epicentre. In Lone Pine, 35 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 43 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 5.8 350,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 250,000× the energy of this one
  3. Around the size people start to feel M 3.0 22× the energy of this one
  4. This earthquake M 2.1 about 43 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 4 earthquakes of M5 or more within 50 km:

  1. 6.1 46km E of Big Pine, California · 41 km N of this epicentre
  2. 5.5 10 km N of Independence, California · 42 km WNW of this epicentre
  3. 5.2 18km NE of Olancha, CA · 46 km SSW of this epicentre
  4. 5.0 18km NE of Olancha, CA · 46 km SSW 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 36.7925, -117.7473. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Inyo County, CA 40 km (25 mi) SE earthquakes near Inyo County
Esmeralda County, NV 110 km (68 mi) N earthquakes near Esmeralda County
Tulare County, CA 112 km (69 mi) SW earthquakes near Tulare County

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

Aftershocks so far

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

  1. 1.8 11km ESE of Lone Pine, CA
  2. 1.5 57km NNW of Stovepipe Wells, CA
  3. 2.1 4km SE of Independence, CA
  4. 1.5 39 km NNE of Keeler, California
  5. 1.6 19km ESE of Lone Pine, CA
  6. 1.5 47km NNW of Stovepipe Wells, CA
  7. 2.0 40km NW of Stovepipe Wells, CA
  8. 2.2 39km NW of Stovepipe Wells, CA
  9. 1.9 41km NW of Stovepipe Wells, CA
  10. 1.5 62 km W of Beatty, Nevada
  11. 1.5 36km NW of Stovepipe Wells, CA
  12. 2.3 39km ESE of Big Pine, CA
  13. 1.6 28 km E of Big Pine, California
  14. 1.8 52km NW of Stovepipe Wells, CA
  15. 1.8 18km N 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.