QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

Earthquake near Soledad, CA

No earthquake was likely felt in Soledad in the 24 hours to 2:25 am PST (10:25 UTC). The last one was M 3.0, 26 km (16 mi) N, at 2:58 pm PDT on 22 October 2026, estimated intensity II (weak) in town. Every earthquake near Soledad

This page: a magnitude 2.3 earthquake was recorded 28 km (18 mi) east-northeast of Soledad, CA, at 9:57 am PST on 27 December 2022 (17:57 UTC), 11 km deep.

USGS: 8km ENE of Pinnacles, CA

53 km (33 mi) ESE of Salinas, CA · 105 km (66 mi) SE of San Jose, CA

9:57 am PST, Dec 27, 2022 · · 11 km deep · released about 91 lb of TNT

10 km30 km60 km120 km N San Benito County 6 kmMonterey County 43 kmMerced County 76 kmSanta Clara County 92 kmSanta Cruz County 98 kmStanislaus 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
9:57 am PST on 27 December 2022 ()
Where
28 km (18 mi) east-northeast of Soledad, CA · earthquakes near Soledad
Magnitude
M 2.3 (md)
Depth
11 km below the surface
Felt
no reports yet
Nearest
San Benito County, 6 km NNW
Nearest mapped fault
San Andreas fault, 6 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 1406 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 17 km (11 mi) from the epicentre. In Soledad, 28 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.

How big was it?

This earthquake released about 91 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 170,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 120,000× the energy of this one
  3. Around the size people start to feel M 3.0 10× the energy of this one
  4. This earthquake M 2.3 about 91 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 3,800 times the energy of this one.

Before 2016, the USGS record lists 15 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.1 Northwest of Huron, California · 42 km E of this epicentre
  2. 5.9 10 km SE of Tres Pinos, California · 24 km NW of this epicentre
  3. 5.8 Near Paicines, California · 21 km NW of this epicentre
  4. 5.8 29 km NE of San Lucas, California · 39 km SE of this epicentre
  5. 5.5 7 km SW of Hollister, California · 44 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 36.5637, -121.0607. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
San Benito County, CA 6 km (4 mi) NNW earthquakes near San Benito County
Monterey County, CA 43 km (26 mi) SSW earthquakes near Monterey County
Merced County, CA 76 km (47 mi) NNE earthquakes near Merced County
Santa Clara County, CA 92 km (57 mi) NW earthquakes near Santa Clara County
Santa Cruz County, CA 98 km (61 mi) WNW earthquakes near Santa Cruz County
Stanislaus County, CA 111 km (69 mi) N earthquakes near Stanislaus County

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

Aftershocks so far

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

  1. 1.8 22km NE of San Lucas, CA
  2. 1.8 8km NW of Pinnacles, CA
  3. 2.1 5km SSE of San Juan Bautista, CA
  4. 2.1 5km S of San Juan Bautista, CA
  5. 1.9 5km S of San Juan Bautista, CA
  6. 1.7 2km N of Pinnacles, CA
  7. 1.5 9km SSE of San Juan Bautista, CA
  8. 1.6 1km W of Tres Pinos, CA
  9. 3.0 8km NNW of New Idria, CA
  10. 1.6 8km SSE of San Juan Bautista, CA
  11. 1.8 8km SSE of San Juan Bautista, CA
  12. 2.2 10km ENE of Pinnacles, CA
  13. 2.3 5km SSE of San Juan Bautista, CA
  14. 2.5 5km SSE of San Juan Bautista, CA
  15. 1.8 4km SSE of San Juan Bautista, 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.