QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

Earthquake near Big Pine, CA

No earthquake was likely felt in Big Pine in the 24 hours to 1:50 pm PST (21:50 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 1.6 earthquake was recorded 44 km (28 mi) east-southeast of Big Pine, CA, at 12:54 pm PDT on 5 November 2021 (19:54 UTC), less than 1 km deep.

USGS: 40km NE of Independence, CA

12:54 pm PDT, Nov 5, 2021 · · 0.3 km deep · released about 8.7 lb of TNT

10 km30 km60 km120 km N Inyo County 62 kmEsmeralda County 87 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
12:54 pm PDT on 5 November 2021 ()
Where
44 km (28 mi) east-southeast of Big Pine, CA · earthquakes near Big Pine
Magnitude
M 1.6 (ml)
Depth
0.3 km below the surface
Felt
no reports yet
Nearest
Inyo County, 62 km SE
Nearest mapped fault
Hunter Mountain- Saline Valley fault, 23 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 1833 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 12 km (7 mi) from the epicentre. In Big Pine, 44 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 8.7 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,700,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,200,000× the energy of this one
  3. Around the size people start to feel M 3.0 110× the energy of this one
  4. This earthquake M 1.6 about 8.7 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 2 earthquakes of M5 or more within 50 km:

  1. 6.1 46km E of Big Pine, California · 18 km NNE of this epicentre
  2. 5.5 10 km N of Independence, California · 35 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 37.0077, -117.8285. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Inyo County, CA 62 km (39 mi) SE earthquakes near Inyo County
Esmeralda County, NV 87 km (54 mi) NNE earthquakes near Esmeralda County
Tulare County, CA 121 km (75 mi) SW earthquakes near Tulare County
Mono County, CA 137 km (85 mi) NW earthquakes near Mono 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. 1.8 9km NE of Big Pine, CA
  2. 3.3 7km N of Big Pine, CA
  3. 1.8 12km S of Big Pine, CA
  4. 3.1 21km NE of Independence, CA
  5. 1.6 59 km SSW of Goldfield, Nevada
  6. 2.3 60 km WNW of Beatty, Nevada
  7. 2.0 59 km WNW of Beatty, Nevada
  8. 1.8 5km N of Lone Pine, CA
  9. 2.3 34km ESE of Big Pine, CA
  10. 2.4 33km ESE of Big Pine, CA
  11. 1.9 33km ESE of Big Pine, CA
  12. 2.7 33km ESE of Big Pine, CA
  13. 1.7 26 km E of Bishop, California
  14. 1.8 61 km WNW of Beatty, Nevada
  15. 1.5 56 km S of Goldfield, Nevada

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.