QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

Earthquake near Big Pine, CA

No earthquake was likely felt in Big Pine in the 24 hours to 3:39 pm PST (23:39 UTC). The last one was M 1.6, 9 km (6 mi) NNE, at 10:07 am PST on 4 November 2026, estimated intensity II (weak) in town. Every earthquake near Big Pine

This page: a magnitude 1.5 earthquake was recorded 45 km (28 mi) east-southeast of Big Pine, CA, at 4:50 pm PST on 12 December 2023 (00:50 UTC), 7.3 km deep.

USGS: 45 km ESE of Big Pine, California

4:50 pm PST, Dec 12, 2023 · · 7.3 km deep · released about 5.4 lb of TNT

10 km30 km60 km120 km N Inyo County 66 kmEsmeralda 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
4:50 pm PST on 12 December 2023 ()
Where
45 km (28 mi) east-southeast of Big Pine, CA · earthquakes near Big Pine
Magnitude
M 1.5 (ml)
Depth
7.3 km below the surface
Felt
no reports yet
Nearest
Inyo County, 66 km SSE
Nearest mapped fault
Fish Lake Valley fault, 25 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 1066 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 7 km (4 mi) from the epicentre. In Big Pine, 45 km away, the estimate is intensity I (not felt). 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 5.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,800,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 2,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 180× the energy of this one
  4. This earthquake M 1.5 about 5.4 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 4.8 on 2022-01-06 — about 75,000 times the energy of this one.

Before 2016, the USGS record lists 2 earthquakes of M5 or more within 50 km:

  1. 6.1 46km E of Big Pine, California · 11 km N of this epicentre
  2. 5.5 10 km N of Independence, California · 41 km WSW 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 37.0686, -117.7940. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Inyo County, CA 66 km (41 mi) SSE earthquakes near Inyo County
Esmeralda County, NV 80 km (50 mi) N earthquakes near Esmeralda County
Tulare County, CA 128 km (80 mi) SW earthquakes near Tulare County
Mono County, CA 134 km (83 mi) NW earthquakes near Mono County
Nye County, NV 154 km (96 mi) NE earthquakes near Nye County

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

Aftershocks so far

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

  1. 2.1 15 km N of Independence, CA
  2. 2.0 64 km WNW of Beatty, Nevada
  3. 2.3 18 km WSW of Deep Springs, CA
  4. 2.1 61 km S of Silver Peak, Nevada
  5. 1.7 64 km WNW of Beatty, Nevada
  6. 1.7 58 km NNW of Stovepipe Wells, CA
  7. 1.9 64 km WNW of Beatty, Nevada
  8. 1.5 64 km WNW of Beatty, Nevada
  9. 1.6 33 km NE of Independence, California
  10. 1.8 7 km ESE of Deep Springs, CA
  11. 1.8 56 km S of Goldfield, Nevada
  12. 1.6 14 km SSE of Big Pine, California
  13. 2.8 17 km ENE of Big Pine, CA
  14. 1.6 59 km NNE of Keeler, California
  15. 1.6 57 km NNE of Keeler, California

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.