QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2md

5km SW of North Fork, CA

· 32 km deep · released about 58 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Madera County 17 kmFresno County 50 kmMariposa County 52 kmTuolumne County 98 kmMono County 100 kmMerced County 103 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 2.2 (md)
Depth
32 km below the surface
Felt
no reports yet
Nearest
Madera County, 17 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1910 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 58 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 260,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 180,000× the energy of this one
  3. Around the size people start to feel M 3.0 16× the energy of this one
  4. This earthquake M 2.2 about 58 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 37.2007, -119.5638. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Madera County, CA 17 km (10 mi) E of here earthquakes near Madera County
Fresno County, CA 50 km (31 mi) N of here earthquakes near Fresno County
Mariposa County, CA 52 km (32 mi) SE of here earthquakes near Mariposa County
Tuolumne County, CA 98 km (61 mi) SSE of here earthquakes near Tuolumne County
Mono County, CA 100 km (62 mi) SW of here earthquakes near Mono County
Merced County, CA 103 km (64 mi) E of here earthquakes near Merced County

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

Aftershocks so far

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

  1. 1.7 21km E of Le Grand, CA
  2. 1.6 26km NE of North Fork, CA
  3. 1.9 6km ENE of Bonadelle Ranchos-Madera Ranchos, CA
  4. 2.1 19km SSW of Mariposa, CA
  5. 1.7 20km SE of Yosemite Valley, CA
  6. 2.0 7km NE of Bonadelle Ranchos-Madera Ranchos, CA
  7. 2.0 17km SSW of Bootjack, CA
  8. 2.0 8km W of North Fork, CA
  9. 1.6 19km SE of Yosemite Valley, CA
  10. 2.5 6km NNW of Fresno, CA
  11. 2.1 12km WNW of Yosemite Lakes, CA
  12. 1.8 19km SE of Yosemite Valley, CA
  13. 2.1 19km SE of Yosemite Valley, CA
  14. 2.5 18km SSW of Mariposa, CA
  15. 1.5 7km NE of Bonadelle Ranchos-Madera Ranchos, 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.