QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6md

Earthquake near Salinas, CA

No earthquake was likely felt in Salinas in the 24 hours to 12:08 pm PST (20:08 UTC). The last one was M 2.7, 18 km (11 mi) ENE, at 5:38 am PDT on 29 October 2026, estimated intensity II (weak) in town; 3 felt reports to USGS. Every earthquake near Salinas

This page: a magnitude 2.6 earthquake was recorded 30 km (18 mi) east of Salinas, CA, at 5:03 pm PST on 22 November 2021 (01:03 UTC), 6.5 km deep. 1 person has reported feeling it to USGS.

USGS: 12km S of Tres Pinos, CA

81 km (50 mi) SSE of San Jose, CA · 28 km (17 mi) E of Salinas, CA

5:03 pm PST, Nov 22, 2021 · · 6.5 km deep · released about 260 lb of TNT

10 km30 km60 km120 km N San Benito County 23 kmMonterey County 49 kmSanta Clara County 68 kmSanta Cruz County 71 kmMerced County 78 kmStanislaus County 102 kmAlameda 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
5:03 pm PST on 22 November 2021 ()
Where
30 km (18 mi) east of Salinas, CA · earthquakes near Salinas
Magnitude
M 2.6 (md)
Depth
6.5 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
San Benito County, 23 km ESE
Nearest mapped fault
San Andreas fault, 2 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 1748 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

At this magnitude and depth, people at rest would likely notice it out to about 23 km (14 mi) from the epicentre. In Salinas, 30 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.

Likely felt in: Hollister 20 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 260 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 59,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 42,000× the energy of this one
  3. Around the size people start to feel M 3.0 3.7× the energy of this one
  4. This earthquake M 2.6 about 260 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

The largest earthquake within 50 km since 2016 was M 4.7 on 2019-10-15 — about 1,400 times the energy of this one.

Before 2016, the USGS record lists 21 earthquakes of M5 or more within 50 km; the five largest:

  1. 5.9 10 km SE of Tres Pinos, California · 10 km ENE of this epicentre
  2. 5.8 Near Watsonville, California · 45 km NW of this epicentre
  3. 5.8 Near Paicines, California · 7 km ESE of this epicentre
  4. 5.8 The 1979 Coyote Lake, California Earthquake · 50 km NNW of this epicentre
  5. 5.5 7 km SW of Hollister, California · 17 km NW 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 36.6850, -121.3227. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
San Benito County, CA 23 km (14 mi) ESE earthquakes near San Benito County
Monterey County, CA 49 km (31 mi) S earthquakes near Monterey County
Santa Clara County, CA 68 km (42 mi) NNW earthquakes near Santa Clara County
Santa Cruz County, CA 71 km (44 mi) WNW earthquakes near Santa Cruz County
Merced County, CA 78 km (48 mi) NE earthquakes near Merced County
Stanislaus County, CA 102 km (63 mi) NNE earthquakes near Stanislaus 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. 1.7 2km NE of Pinnacles, CA
  2. 1.7 27km NE of Hollister, CA
  3. 2.5 5km NNW of Pinnacles, CA
  4. 2.1 21km SE of Pinnacles, CA
  5. 1.7 10km SE of Pinnacles, CA
  6. 1.7 4km W of Pinnacles, CA
  7. 2.1 10km SE of Pinnacles, CA
  8. 2.4 10km SE of Pinnacles, CA
  9. 2.0 12km SE of Pinnacles, CA
  10. 2.1 9km SSW of Tres Pinos, CA
  11. 2.0 5km ESE of Aromas, CA
  12. 1.9 3km N of Pinnacles, CA
  13. 1.7 28km SSW of South Dos Palos, CA
  14. 2.7 4km NW of Pinnacles, CA
  15. 2.1 26km SW of Gustine, 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.

On USGS

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