QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8md

Earthquake near Salinas, CA

No earthquake was likely felt in Salinas in the 24 hours to 3:32 am PST (11:32 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 2.8 earthquake was recorded 46 km (28 mi) east of Salinas, CA, at 10:22 am PDT on 31 March 2025 (17:22 UTC), 1.8 km deep. 3 people have reported feeling it to USGS.

USGS: 15 km NNE of Pinnacles, CA

92 km (57 mi) SE of San Jose, CA · 44 km (27 mi) E of Salinas, CA

10:22 am PDT, Mar 31, 2025 · · 1.8 km deep · released about 400 lb of TNT

Every earthquake near Salinas Felt it? Tell USGS Check my area
10 km30 km60 km120 km N San Benito County 8 kmMonterey County 50 kmMerced County 70 kmSanta Clara County 79 kmSanta Cruz County 86 kmStanislaus County 100 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
10:22 am PDT on 31 March 2025 ()
Where
46 km (28 mi) east of Salinas, CA · earthquakes near Salinas
Magnitude
M 2.8 (md)
Depth
1.8 km below the surface
Felt
3 reports · strongest reported intensity II
Nearest
San Benito County, 8 km SE
Nearest mapped fault
Calaveras 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 524 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 26 km (16 mi) from the epicentre. In Salinas, 46 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: Ridgemark.

How big was it?

This earthquake released about 400 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 38,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 27,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.4× the energy of this one
  4. This earthquake M 2.8 about 400 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 870 times the energy of this one.

Before 2016, the USGS record lists 16 earthquakes of M5 or more within 50 km; the five largest:

  1. 5.9 10 km SE of Tres Pinos, California · 10 km NW of this epicentre
  2. 5.8 Near Paicines, California · 10 km W of this epicentre
  3. 5.5 7 km SW of Hollister, California · 31 km WNW of this epicentre
  4. 5.5 12 km S of Tres Pinos, California · 14 km W of this epicentre
  5. 5.5 3 km ENE of Tres Pinos, California · 20 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 36.6668, -121.1432. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
San Benito County, CA 8 km (5 mi) SE earthquakes near San Benito County
Monterey County, CA 50 km (31 mi) SSW earthquakes near Monterey County
Merced County, CA 70 km (43 mi) NNE earthquakes near Merced County
Santa Clara County, CA 79 km (49 mi) NW earthquakes near Santa Clara County
Santa Cruz County, CA 86 km (53 mi) WNW earthquakes near Santa Cruz County
Stanislaus County, CA 100 km (62 mi) N earthquakes near Stanislaus County

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

Aftershocks so far

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

  1. 1.6 11 km SE of Pinnacles, CA
  2. 1.8 2 km NNW of Hollister, CA
  3. 1.6 6 km NNE of Greenfield, CA
  4. 1.6 16 km S of Tres Pinos, CA
  5. 1.9 13 km ESE of Pinnacles, CA
  6. 2.1 4 km SW of San Juan Bautista, CA
  7. 3.3 16 km SE of Pinnacles, CA
  8. 2.0 11 km SSW of Tres Pinos, CA
  9. 1.6 2 km E of Aromas, CA
  10. 1.8 16 km SE of Pinnacles, CA
  11. 1.7 32 km SW of South Dos Palos, CA
  12. 2.1 18 km SE of Pinnacles, CA
  13. 2.0 17 km SE of Pinnacles, CA
  14. 2.4 14 km SSW of Tres Pinos, CA
  15. 3.0 13 km SSW of Tres Pinos, 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.