QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0md

9km SW of Susanville, CA

· 0.7 km deep · released about 26 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Lassen County 40 kmPlumas County 42 kmSierra County 89 kmWashoe County 99 kmButte County 108 kmNevada County 119 kmShasta County 119 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
0.7 km below the surface
Felt
1 report · strongest reported intensity III
Nearest
Lassen County, 40 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2882 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 26 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 5.8 580,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 410,000× the energy of this one
  3. Around the size people start to feel M 3.0 36× the energy of this one
  4. This earthquake M 2.0 about 26 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 40.3653, -120.7315. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Lassen County, CA 40 km (25 mi) SSW of here earthquakes near Lassen County
Plumas County, CA 42 km (26 mi) N of here earthquakes near Plumas County
Sierra County, CA 89 km (56 mi) NNW of here earthquakes near Sierra County
Washoe County, NV 99 km (62 mi) WSW of here earthquakes near Washoe County
Butte County, CA 108 km (67 mi) NE of here earthquakes near Butte County
Nevada County, CA 119 km (74 mi) N of here earthquakes near Nevada County

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

Aftershocks so far

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

  1. 2.4 4km SE of Taylorsville, CA
  2. 1.6 1km WSW of Almanor, CA
  3. 1.9 9km WSW of Susanville, CA
  4. 1.6 4 km SSW of Canyondam, California
  5. 2.0 6km SSW of Canyondam, CA
  6. 1.8 3km NE of Greenville, CA
  7. 1.7 6 km N of Greenhorn, California
  8. 1.6 4km W of Almanor, CA
  9. 1.7 15km SSW of Susanville, CA
  10. 1.8 15km SSW of Susanville, CA
  11. 1.8 4km W of Taylorsville, CA
  12. 1.9 2km WNW of East Shore, CA
  13. 1.8 12km SW of Johnstonville, CA
  14. 1.9 4km SW of East Shore, CA
  15. 1.6 1km SSE of Canyondam, 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 4.5 on 2016-08-04 — it released about 6,000 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.