QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

29 km NNE of Herlong, California

· 6.2 km deep · released about 21 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Washoe County 47 kmLassen County 66 kmPlumas County 84 kmSierra County 101 kmStorey County 112 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 1.9 (ml)
Depth
6.2 km below the surface
Felt
no reports yet
Nearest
Washoe County, 47 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1406 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 21 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 710,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 500,000× the energy of this one
  3. Around the size people start to feel M 3.0 45× the energy of this one
  4. This earthquake M 1.9 about 21 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.

Where

Epicentre 40.3794, -119.9776. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Washoe County, NV 47 km (29 mi) SW of here earthquakes near Washoe County
Lassen County, CA 66 km (41 mi) SE of here earthquakes near Lassen County
Plumas County, CA 84 km (52 mi) ENE of here earthquakes near Plumas County
Sierra County, CA 101 km (62 mi) NNE of here earthquakes near Sierra County
Storey County, NV 112 km (69 mi) NNW of here earthquakes near Storey County

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

Aftershocks so far

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

  1. 1.6 17 km NW of Sutcliffe, Nevada
  2. 2.0 14 km NNW of Sutcliffe, Nevada
  3. 1.6 22 km NNW of Sutcliffe, Nevada
  4. 2.6 31 km NNW of Sutcliffe, Nevada
  5. 2.5 32 km NNW of Sutcliffe, Nevada
  6. 1.7 37 km W of Empire, Nevada
  7. 1.6 34 km NNW of Sutcliffe, Nevada
  8. 1.9 18 km NW of Sutcliffe, Nevada
  9. 2.6 22 km NW of Sutcliffe, Nevada
  10. 1.6 16 km NNW of Sutcliffe, Nevada
  11. 1.8 12 km NNW of Sutcliffe, Nevada
  12. 2.1 18 km NW of Sutcliffe, Nevada
  13. 2.3 19 km NW of Sutcliffe, Nevada
  14. 2.5 16 km NNW of Sutcliffe, Nevada
  15. 2.0 33 km NNE of Herlong, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.5 on 2016-08-04 — it released about 7,400 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.