QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

Earthquake near Truckee, CA

Yes: an earthquake was likely felt in Truckee in the last 24 hours. M 1.7, 10 km (6 mi) NNE of Truckee, at 7:32 am PST on 13 November 2026 (15:32 UTC); the estimated shaking in Truckee was intensity II (weak). Every earthquake near Truckee

This page: a magnitude 1.6 earthquake was recorded 16 km (10 mi) north-northwest of Truckee, CA, at 11:15 pm PST on 22 February 2021 (07:15 UTC), 6.7 km deep.

USGS: 16 km NNW of Truckee, California

37 km (23 mi) WSW of Reno, NV

11:15 pm PST, Feb 22, 2021 · · 6.7 km deep · released about 7.6 lb of TNT

10 km30 km60 km120 km N Sierra County 26 kmNevada County 47 kmCarson City 56 kmPlacer County 59 kmStorey County 64 kmPlumas County 76 kmEl Dorado County 78 kmDouglas County 84 kmYuba County 95 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
11:15 pm PST on 22 February 2021 ()
Where
16 km (10 mi) north-northwest of Truckee, CA · earthquakes near Truckee
Magnitude
M 1.6 (ml)
Depth
6.7 km below the surface
Felt
no reports yet
Nearest
Sierra County, 26 km WNW
Nearest mapped fault
Polaris fault, 8 km from its surface trace — near is not the same as on
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2089 days ago

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

At this magnitude and depth, people at rest would likely notice it out to about 9 km (6 mi) from the epicentre. In Truckee, 16 km away, the estimate is intensity II (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

Earthquakes near other towns within 30 km: Verdi.

How big was it?

This earthquake released about 7.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,400,000× the energy of this one
  3. Around the size people start to feel M 3.0 130× the energy of this one
  4. This earthquake M 1.6 about 7.6 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.

For this area

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record lists 10 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.0 Near Reno, Nevada · 40 km E of this epicentre
  2. 6.0 6 km WNW of Verdi, California · 19 km ENE of this epicentre
  3. 5.9 9 km NW of Truckee, California · 7 km S of this epicentre
  4. 5.6 5 km NE of Loyalton, California · 29 km NNE of this epicentre
  5. 5.3 11 km N of Soda Springs, California · 12 km WSW of this epicentre

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 39.4570, -120.2681. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Sierra County, CA 26 km (16 mi) WNW earthquakes near Sierra County
Nevada County, CA 47 km (29 mi) WSW earthquakes near Nevada County
Carson City, NV 56 km (35 mi) SE earthquakes near Carson City
Placer County, CA 59 km (37 mi) SW earthquakes near Placer County
Storey County, NV 64 km (40 mi) E earthquakes near Storey County
Plumas County, CA 76 km (47 mi) NW earthquakes near Plumas County

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

Aftershocks so far

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

  1. 2.8 0km ESE of Lake Davis, CA
  2. 3.0 0km NNW of Lake Davis, CA
  3. 2.4 0km NNW of Lake Davis, CA
  4. 2.5 0km NW of Lake Davis, CA
  5. 2.1 0km NE of Lake Davis, CA
  6. 2.2 1km WNW of Lake Davis, CA
  7. 2.3 9km SE of Dollar Point, CA
  8. 2.2 0km WNW of Lake Davis, CA
  9. 2.8 9km SE of Dollar Point, CA
  10. 3.4 9km SE of Dollar Point, CA
  11. 2.4 12km NW of Truckee, CA
  12. 2.0 1km NW of Lake Davis, CA
  13. 1.5 15 km SSE of Sierraville, California
  14. 1.7 8 km SE of Dollar Point, California
  15. 1.5 16 km SSE of Sierraville, 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.

On USGS

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