QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8md

8km S of Los Banos, CA

· -0.4 km deep · released about 16 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Merced County 26 kmSan Benito County 46 kmStanislaus County 65 kmSanta Clara County 78 kmMonterey County 92 kmMadera County 102 kmSanta Cruz County 102 kmMariposa County 106 kmFresno County 110 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 1.8 (md)
Depth
-0.4 km below the surface
Felt
no reports yet
Nearest
Merced County, 26 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1959 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 16 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 930,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 660,000× the energy of this one
  3. Around the size people start to feel M 3.0 59× the energy of this one
  4. This earthquake M 1.8 about 16 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 36.9855, -120.8603. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Merced County, CA 26 km (16 mi) SSW of here earthquakes near Merced County
San Benito County, CA 46 km (29 mi) NNE of here earthquakes near San Benito County
Stanislaus County, CA 65 km (41 mi) S of here earthquakes near Stanislaus County
Santa Clara County, CA 78 km (49 mi) ESE of here earthquakes near Santa Clara County
Monterey County, CA 92 km (57 mi) NNE of here earthquakes near Monterey County
Madera County, CA 102 km (63 mi) WSW of here earthquakes near Madera County

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

Aftershocks so far

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

  1. 1.6 8km NE of Ridgemark, CA
  2. 3.7 2km WSW of Los Banos, CA
  3. 1.7 10km N of Pinnacles, CA
  4. 1.7 12km NE of Hollister, CA
  5. 1.6 20km SW of Gustine, CA
  6. 1.6 26km SSW of Los Banos, CA
  7. 1.9 11km ENE of Pinnacles, CA
  8. 2.2 6km NNE of Tres Pinos, CA
  9. 2.4 12km NNE of Pinnacles, CA
  10. 1.5 24km NW of New Idria, CA
  11. 1.8 8km ENE of Pinnacles, CA
  12. 2.3 22km SW of Los Banos, CA
  13. 1.6 7km NE of Ridgemark, CA
  14. 1.9 23km S of South Dos Palos, 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.