QuakeIndex

Earthquake · reviewed by a seismologist

M 4.0mw

Earthquake near Soledad, CA

No earthquake was likely felt in Soledad in the 24 hours to 5:19 am PST (13:19 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 4.0 earthquake was recorded 25 km (15 mi) northeast of Soledad, CA, at 6:36 am PDT on 1 September 2022 (13:36 UTC), 1.6 km deep. 38 people have reported feeling it to USGS.

USGS: 5km ENE of Pinnacles, CA

50 km (31 mi) ESE of Salinas, CA · 105 km (65 mi) SE of San Jose, CA

6:36 am PDT, Sep 1, 2022 · · 1.6 km deep · released about 15 tons of TNT

10 km30 km60 km120 km N San Benito County 7 kmMonterey County 40 kmMerced County 79 kmSanta Clara County 92 kmSanta Cruz County 96 kmStanislaus County 113 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
6:36 am PDT on 1 September 2022 ()
Where
25 km (15 mi) northeast of Soledad, CA · earthquakes near Soledad
Magnitude
M 4.0 (mw)
Depth
1.6 km below the surface
Felt
38 reports · strongest reported intensity IV
Measured shaking
intensity V (ShakeMap)
USGS impact alert
green
Tsunami
USGS flagged this event for tsunami evaluation. Follow tsunami.gov for official messages.
Nearest
San Benito County, 7 km N
Nearest mapped fault
San Andreas fault, 3 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 1221 days ago

This was a light earthquake. It is usually felt clearly nearby and can rattle windows and dishes, but damage is uncommon.

At this magnitude and depth, people at rest would likely notice it out to about 97 km (60 mi) from the epicentre. In Soledad, 25 km away, the estimate is intensity III (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: Soledad 25 km, intensity III · Greenfield 29 km, intensity III · King City 37 km, intensity III · Hollister 43 km, intensity III. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 15 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 5.0 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 11,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 500× the energy of this one
  3. Magna, Utah 2020 M 5.7 350× the energy of this one
  4. This earthquake M 4.0 about 15 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 32× more

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 12 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 · 45 km E of this epicentre
  2. 5.9 10 km SE of Tres Pinos, California · 23 km NNW of this epicentre
  3. 5.8 Near Paicines, California · 19 km NW of this epicentre
  4. 5.8 29 km NE of San Lucas, California · 40 km SE of this epicentre
  5. 5.5 7 km SW of Hollister, California · 42 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 36.5490, -121.0965. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
San Benito County, CA 7 km (4 mi) N earthquakes near San Benito County
Monterey County, CA 40 km (25 mi) SSW earthquakes near Monterey County
Merced County, CA 79 km (49 mi) NNE earthquakes near Merced County
Santa Clara County, CA 92 km (57 mi) NW earthquakes near Santa Clara County
Santa Cruz County, CA 96 km (60 mi) WNW earthquakes near Santa Cruz County
Stanislaus County, CA 113 km (70 mi) N earthquakes near Stanislaus County

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

Aftershocks so far

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

  1. 2.5 3km W of Hollister, CA
  2. 1.9 4km NNW of Pinnacles, CA
  3. 1.6 12km SE of Pinnacles, CA
  4. 1.8 21km SW of Los Banos, CA
  5. 2.1 14km W of New Idria, CA
  6. 1.8 5km NNE of Pinnacles, CA
  7. 3.3 21km SW of Los Banos, CA
  8. 1.6 22km SW of Los Banos, CA
  9. 2.4 5km NNE of Pinnacles, CA
  10. 1.8 5km ENE of Pinnacles, CA
  11. 1.5 5km ENE of Pinnacles, CA
  12. 1.6 5km NE of Pinnacles, CA
  13. 2.0 22km NE of San Lucas, CA
  14. 1.9 5km NNE of Pinnacles, CA
  15. 1.6 23km WSW of New Idria, 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.