QuakeIndex

Earthquake · reviewed by a seismologist

M 3.9mw

8 km SE of Deep Springs, CA

· 12 km deep · released about 9.6 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Esmeralda County 56 kmInyo County 97 kmMono County 107 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 3.9 (mw)
Depth
12 km below the surface
Felt
27 reports · strongest reported intensity III
Measured shaking
intensity IV (ShakeMap)
Nearest
Esmeralda County, 56 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 388 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 27 people have reported feeling it to USGS.

How big was it?

This earthquake released about 9.6 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.9 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 18,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 790× the energy of this one
  3. Magna, Utah 2020 M 5.7 560× the energy of this one
  4. This earthquake M 3.9 about 9.6 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 20× more

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.

Where

Epicentre 37.3265, -117.9192. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Esmeralda County, NV 56 km (35 mi) SSW of here earthquakes near Esmeralda County
Inyo County, CA 97 km (60 mi) NNW of here earthquakes near Inyo County
Mono County, CA 107 km (66 mi) SE of here earthquakes near Mono County

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

Aftershocks so far

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

  1. 1.8 23 km SSE of Dyer, Nevada
  2. 1.8 40 km ENE of Independence, California
  3. 1.8 11 km NE of Big Pine, California
  4. 1.7 23 km NE of Big Pine, California
  5. 1.5 7 km NW of Dixon Lane-Meadow Creek, CA
  6. 1.6 11 km NNE of Dixon Lane-Meadow Creek, CA
  7. 1.7 11 km ESE of Big Pine, California
  8. 3.6 7 km SE of Deep Springs, CA
  9. 1.6 38 km ENE of Big Pine, California
  10. 1.5 56 km SSW of Goldfield, Nevada
  11. 1.5 20 km SSW of Silver Peak, Nevada
  12. 1.6 34 km SSE of Silver Peak, Nevada
  13. 2.4 5 km WNW of Dixon Lane-Meadow Creek, CA
  14. 2.6 3 km SE of Wilkerson, CA
  15. 2.5 24 km SE of Big Pine, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.8 on 2016-02-16 — it released about 22 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.