QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

Earthquake near Lone Pine, CA

No earthquake was likely felt in Lone Pine in the 24 hours to 10:25 am PST (18:25 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 1.7 earthquake was recorded 44 km (28 mi) south of Lone Pine, CA, at 7:29 am PDT on 28 September 2024 (14:29 UTC), 3.3 km deep.

USGS: 8 km S of Olancha, CA

7:29 am PDT, Sep 28, 2024 · · 3.3 km deep · released about 12 lb of TNT

10 km30 km60 km120 km N Inyo County 67 kmTulare County 69 kmKern County 116 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
7:29 am PDT on 28 September 2024 ()
Where
44 km (28 mi) south of Lone Pine, CA · earthquakes near Lone Pine
Magnitude
M 1.7 (ml)
Depth
3.3 km below the surface
Felt
no reports yet
Nearest
Inyo County, 67 km NE
Nearest mapped fault
Southern Sierra Nevada fault, 6 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 773 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 Lone 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 12 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,300,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 900,000× the energy of this one
  3. Around the size people start to feel M 3.0 80× the energy of this one
  4. This earthquake M 1.7 about 12 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 1,300,000 times the energy of this one.

Before 2016, the USGS record lists 7 earthquakes of M5 or more within 50 km; the five largest:

  1. 5.3 27km E of Coso Junction, California · 36 km ESE of this epicentre
  2. 5.2 28km E of Coso Junction, California · 37 km ESE of this epicentre
  3. 5.2 7km ESE of Coso Junction, CA · 25 km SSE of this epicentre
  4. 5.2 18km NE of Olancha, CA · 24 km NNE of this epicentre
  5. 5.1 13km SE of Little Lake, CA · 43 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 36.2090, -118.0097. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Inyo County, CA 67 km (42 mi) NE earthquakes near Inyo County
Tulare County, CA 69 km (43 mi) W earthquakes near Tulare County
Kern County, CA 116 km (72 mi) SW earthquakes near Kern County

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

Aftershocks so far

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

  1. 1.9 12 km NE of Coso Junction, CA
  2. 1.9 28 km N of Kernville, CA
  3. 1.7 20 km E of Little Lake, CA
  4. 1.6 22 km WNW of Coso Junction, CA
  5. 1.9 21 km SSW of Little Lake, CA
  6. 3.5 21 km SSW of Little Lake, CA
  7. 1.7 8 km E of Coso Junction, CA
  8. 1.6 4 km WSW of Coso Junction, CA
  9. 2.0 2 km ENE of Lone Pine, CA
  10. 1.8 15 km ESE of Little Lake, CA
  11. 1.6 7 km NE of Coso Junction, CA
  12. 1.6 15 km ESE of Little Lake, CA
  13. 1.9 2 km ENE of Lone Pine, CA
  14. 3.0 2 km ENE of Lone Pine, CA
  15. 1.8 20 km E of Little Lake, 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.