QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0ml

16km NNE of Coso Junction, CA

Yes. A magnitude 3.0 earthquake was recorded 16km NNE of Coso Junction, CA, at 5:08 pm PDT on 10 July 2019 (00:08 UTC), 1.7 km deep.

· 1.7 km deep · released about 1,100 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Inyo County 61 kmTulare County 81 kmKern County 120 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
Magnitude
M 3.0 (ml)
Depth
1.7 km below the surface
Felt
no reports yet
Nearest
Inyo County, 61 km NE
Nearest mapped fault
Southern Sierra Nevada fault, 15 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 1799 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 39 km (24 mi) from the epicentre. 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 1,100 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 6.7 300,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 13,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 9,400× the energy of this one
  4. This earthquake M 3.0 about 1,100 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 5.5 on 2019-07-06 — about 4,700 times the energy of this one.

Before 2016, the USGS record lists 11 earthquakes of M5 or more within 50 km; the five largest:

  1. 5.4 17km N of Ridgecrest, California · 49 km SSE of this epicentre
  2. 5.3 27km E of Coso Junction, California · 24 km ESE of this epicentre
  3. 5.2 15km NNE of Inyokern, CA · 45 km SSE of this epicentre
  4. 5.2 28km E of Coso Junction, California · 25 km ESE of this epicentre
  5. 5.2 7km ESE of Coso Junction, CA · 18 km S 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 36.1750, -117.8812. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Inyo County, CA 61 km (38 mi) NE earthquakes near Inyo County
Tulare County, CA 81 km (50 mi) W earthquakes near Tulare County
Kern County, CA 120 km (74 mi) SW earthquakes near Kern County

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

Aftershocks so far

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

  1. 2.4 17km E of Little Lake, CA
  2. 1.8 24km WNW of Searles Valley, CA
  3. 2.8 22km ESE of Little Lake, CA
  4. 1.5 21km E of Coso Junction, CA
  5. 2.0 15km SE of Olancha, CA
  6. 1.9 18km E of Little Lake, CA
  7. 2.2 14km NNE of Coso Junction, CA
  8. 2.3 20km E of Little Lake, CA
  9. 2.3 17km E of Little Lake, CA
  10. 3.5 17km E of Little Lake, CA
  11. 1.6 24km NNW of Searles Valley, CA
  12. 1.8 22km WNW of Searles Valley, CA
  13. 1.8 24km ESE of Little Lake, CA
  14. 1.8 10km NE of Coso Junction, CA
  15. 1.8 9km ESE of Coso Junction, 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.