QuakeIndex

Earthquake · reviewed by a seismologist

M 3.7mw

2km WSW of Los Banos, CA

· 5.8 km deep · released about 6.1 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Merced County 21 kmSan Benito County 52 kmStanislaus County 58 kmSanta Clara County 75 kmMonterey County 98 kmSanta Cruz County 101 kmMadera County 101 kmMariposa County 103 kmSan Joaquin County 104 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 3.7 (mw)
Depth
5.8 km below the surface
Felt
143 reports · strongest reported intensity V
Measured shaking
intensity IV (ShakeMap)
Nearest
Merced County, 21 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1433 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 143 people have reported feeling it to USGS.

How big was it?

This earthquake released about 6.1 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.7 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 28,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 1,200× the energy of this one
  3. Magna, Utah 2020 M 5.7 870× the energy of this one
  4. This earthquake M 3.7 about 6.1 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 13× 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.

Where

Epicentre 37.0517, -120.8747. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Merced County, CA 21 km (13 mi) SW of here earthquakes near Merced County
San Benito County, CA 52 km (33 mi) NNE of here earthquakes near San Benito County
Stanislaus County, CA 58 km (36 mi) SSE of here earthquakes near Stanislaus County
Santa Clara County, CA 75 km (46 mi) ESE of here earthquakes near Santa Clara County
Monterey County, CA 98 km (61 mi) NNE of here earthquakes near Monterey County
Santa Cruz County, CA 101 km (63 mi) E of here earthquakes near Santa Cruz County

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

Aftershocks so far

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

  1. 2.1 12km NNE of Hollister, CA
  2. 2.4 6km NNE of Los Banos, CA
  3. 2.1 5km NNE of Los Banos, CA
  4. 2.0 5km NNE of Los Banos, CA
  5. 1.9 6km NNE of Los Banos, CA
  6. 2.0 12km NNE of Hollister, CA
  7. 1.7 8km S of Gustine, CA
  8. 1.7 18km SSW of Gustine, CA
  9. 1.9 25km SSW of South Dos Palos, CA
  10. 1.8 24km SSW of Los Banos, CA
  11. 1.6 24km SSW of Los Banos, CA
  12. 1.5 17km NE of Pinnacles, CA
  13. 1.5 19km ENE of Tres Pinos, CA
  14. 1.7 30km NE of Pinnacles, CA
  15. 2.3 15km SE 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.