QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0md

22km WSW of Gustine, CA

· 1.1 km deep · released about 26 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Santa Clara County 39 kmStanislaus County 44 kmMerced County 46 kmSan Benito County 69 kmSanta Cruz County 71 kmAlameda County 76 kmSan Joaquin County 80 kmContra Costa County 100 kmSan Mateo County 102 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
Magnitude
M 2.0 (md)
Depth
1.1 km below the surface
Felt
no reports yet
Nearest
Santa Clara County, 39 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1284 days ago

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

How big was it?

This earthquake released about 26 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 580,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 410,000× the energy of this one
  3. Around the size people start to feel M 3.0 36× the energy of this one
  4. This earthquake M 2.0 about 26 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.

Where

Epicentre 37.2150, -121.2440. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Santa Clara County, CA 39 km (25 mi) E of here earthquakes near Santa Clara County
Stanislaus County, CA 44 km (27 mi) SSW of here earthquakes near Stanislaus County
Merced County, CA 46 km (29 mi) W of here earthquakes near Merced County
San Benito County, CA 69 km (43 mi) NNW of here earthquakes near San Benito County
Santa Cruz County, CA 71 km (44 mi) ENE of here earthquakes near Santa Cruz County
Alameda County, CA 76 km (47 mi) SE of here earthquakes near Alameda County

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

Aftershocks so far

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

  1. 1.6 7km NNE of Tres Pinos, CA
  2. 1.5 2km E of Aromas, CA
  3. 1.5 10km E of Alum Rock, CA
  4. 1.9 15km E of Seven Trees, CA
  5. 2.6 2km SW of Hollister, CA
  6. 1.6 11km NNE of Hollister, CA
  7. 2.0 2km N of Hollister, CA
  8. 1.9 14km N of Morgan Hill, CA
  9. 1.6 2km E of Aromas, CA
  10. 2.0 14km ENE of Seven Trees, CA
  11. 1.6 16km E of Seven Trees, CA
  12. 1.7 12km ESE of Alum Rock, CA
  13. 1.6 2km E of Aromas, CA
  14. 1.6 9km NNE of San Juan Bautista, CA
  15. 1.6 8km WSW of Gilroy, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 5.1 on 2022-10-25 — it released about 45,000 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

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