QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5md

12km N of Friant, CA

· 18 km deep · released about 160 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Madera County 14 kmFresno County 37 kmMariposa County 57 kmMerced County 92 kmTuolumne County 106 kmKings County 114 kmMono County 116 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 2.5 (md)
Depth
18 km below the surface
Felt
18 reports · strongest reported intensity III
Nearest
Madera County, 14 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3159 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 18 people have reported feeling it to USGS.

How big was it?

This earthquake released about 160 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 92,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 65,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.8× the energy of this one
  4. This earthquake M 2.5 about 160 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 37.0945, -119.6942. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Madera County, CA 14 km (9 mi) SSE of here earthquakes near Madera County
Fresno County, CA 37 km (23 mi) N of here earthquakes near Fresno County
Mariposa County, CA 57 km (35 mi) SSE of here earthquakes near Mariposa County
Merced County, CA 92 km (57 mi) E of here earthquakes near Merced County
Tuolumne County, CA 106 km (66 mi) SSE of here earthquakes near Tuolumne County
Kings County, CA 114 km (71 mi) N of here earthquakes near Kings County

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

Aftershocks so far

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

  1. 1.6 7km NNE of Oakhurst, CA
  2. 1.6 18km SSW of Bootjack, CA
  3. 2.3 19km WNW of Yosemite Lakes, CA
  4. 1.8 3km W of Madera Acres, CA
  5. 2.3 6km W of Madera, CA
  6. 1.7 10km W of Ahwahnee, CA
  7. 1.6 2km NW of Oakhurst, CA
  8. 2.6 17km SSW of Bootjack, CA
  9. 2.1 9km N of Clovis, CA
  10. 1.8 17km SSW of Bootjack, CA
  11. 2.1 16km SSW of Bootjack, CA
  12. 1.6 17km SSW of Bootjack, CA
  13. 2.2 8km SSE of Friant, CA
  14. 1.9 17km SSW of Bootjack, CA
  15. 1.9 12km NNE of North Fork, 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.