QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

40 km ENE of Herlong, California

· 4.0 km deep · released about 43 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Washoe County 47 kmLassen County 89 kmStorey County 98 kmPlumas County 101 kmSierra County 107 kmPershing County 111 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 2.1 (ml)
Depth
4.0 km below the surface
Felt
1 report · strongest reported intensity IV
Nearest
Washoe County, 47 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2881 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 43 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 350,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 250,000× the energy of this one
  3. Around the size people start to feel M 3.0 22× the energy of this one
  4. This earthquake M 2.1 about 43 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 40.3057, -119.7104. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Washoe County, NV 47 km (30 mi) S of here earthquakes near Washoe County
Lassen County, CA 89 km (56 mi) ESE of here earthquakes near Lassen County
Storey County, NV 98 km (61 mi) N of here earthquakes near Storey County
Plumas County, CA 101 km (63 mi) ENE of here earthquakes near Plumas County
Sierra County, CA 107 km (66 mi) NE of here earthquakes near Sierra County
Pershing County, NV 111 km (69 mi) W of here earthquakes near Pershing 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. 1.8 9 km N of Sutcliffe, Nevada
  2. 1.6 8 km N of Sutcliffe, Nevada
  3. 1.7 9 km NNW of Sutcliffe, Nevada
  4. 2.3 15km SE of Honey Lake, CA
  5. 1.9 9 km NNW of Sutcliffe, Nevada
  6. 1.8 9 km NNW of Sutcliffe, Nevada
  7. 2.2 8 km NNW of Sutcliffe, Nevada
  8. 1.6 8 km NNW of Sutcliffe, Nevada
  9. 2.7 3 km SW of Gerlach, Nevada
  10. 1.6 27 km W of Gerlach, Nevada
  11. 1.6 26 km WSW of Gerlach, Nevada
  12. 2.3 26 km WSW of Gerlach, Nevada
  13. 1.6 10 km NNW of Sutcliffe, Nevada
  14. 1.8 28 km WSW of Gerlach, Nevada
  15. 1.5 37 km WSW of Gerlach, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.5 on 2016-08-04 — it released about 3,700 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.