QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9md

16km ENE of Midpines, CA

· 37 km deep · released about 25 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Mariposa County 14 kmMadera County 45 kmTuolumne County 49 kmMono County 85 kmCalaveras County 95 kmFresno County 95 kmMerced County 97 kmStanislaus County 109 kmAlpine County 112 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 1.9 (md)
Depth
37 km below the surface
Felt
no reports yet
Nearest
Mariposa County, 14 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1573 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 25 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 5.8 600,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 420,000× the energy of this one
  3. Around the size people start to feel M 3.0 38× the energy of this one
  4. This earthquake M 1.9 about 25 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 37.6110, -119.7622. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mariposa County, CA 14 km (9 mi) ENE of here earthquakes near Mariposa County
Madera County, CA 45 km (28 mi) N of here earthquakes near Madera County
Tuolumne County, CA 49 km (30 mi) SSE of here earthquakes near Tuolumne County
Mono County, CA 85 km (53 mi) WSW of here earthquakes near Mono County
Calaveras County, CA 95 km (59 mi) SE of here earthquakes near Calaveras County
Fresno County, CA 95 km (59 mi) N of here earthquakes near Fresno County

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

Aftershocks so far

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

  1. 2.6 8km W of Ahwahnee, CA
  2. 1.5 19km SE of Yosemite Valley, CA
  3. 2.2 16km SSW of Yosemite Village, CA
  4. 1.8 32km NE of North Fork, CA
  5. 1.5 32km SW of Mammoth Lakes, CA
  6. 2.2 20km SSW of Mariposa, CA
  7. 1.9 14km S of Mariposa, CA
  8. 2.0 10km S of Mariposa, CA
  9. 1.8 11km S of Mariposa, CA
  10. 2.4 20km ENE of Le Grand, CA
  11. 1.6 7km NE of Ahwahnee, CA
  12. 2.0 10km SSW of Mariposa, CA
  13. 2.3 10km SSW of Mariposa, CA
  14. 1.7 22km ENE of Le Grand, CA
  15. 2.1 22km ENE of Le Grand, 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.