QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0md

9 km WSW of Burnt Ranch, California

· 29 km deep · released about 29 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Humboldt County 30 kmTrinity County 41 kmDel Norte County 114 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 2.0 (md)
Depth
29 km below the surface
Felt
no reports yet
Nearest
Humboldt County, 30 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3427 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 29 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 520,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 370,000× the energy of this one
  3. Around the size people start to feel M 3.0 33× the energy of this one
  4. This earthquake M 2.0 about 29 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 40.7667, -123.5783. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Humboldt County, CA 30 km (19 mi) ENE of here earthquakes near Humboldt County
Trinity County, CA 41 km (26 mi) WNW of here earthquakes near Trinity County
Del Norte County, CA 114 km (71 mi) SSE of here earthquakes near Del Norte County
Siskiyou County, CA 126 km (79 mi) SW of here earthquakes near Siskiyou County
Tehama County, CA 134 km (83 mi) WNW of here earthquakes near Tehama County

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

Aftershocks so far

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

  1. 1.8 29km WSW of Hayfork, CA
  2. 1.6 11km NE of Hydesville, CA
  3. 2.5 3km SW of Willow Creek, CA
  4. 2.1 30km W of Hayfork, CA
  5. 1.7 16km E of Hydesville, CA
  6. 2.6 32km SSW of Willow Creek, CA
  7. 2.5 17km ESE of Hydesville, CA
  8. 2.2 10km SE of Willow Creek, CA
  9. 1.8 17km E of Hydesville, CA
  10. 2.4 26km E of Hydesville, CA
  11. 1.9 4km SE of Willow Creek, CA
  12. 2.2 19km ESE of Pine Hills, CA
  13. 2.2 16km ESE of Pine Hills, CA
  14. 3.8 19km WSW of Hayfork, CA
  15. 2.0 26km ESE of Willow Creek, 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 2016-07-21 — it released about 17,000 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.