QuakeIndex

not reported · automatic estimate, may change

M 1.5ml

Central California

· 16 km deep · released about 5.4 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Madera County 50 kmFresno County 65 kmMariposa County 76 kmMono County 83 kmTuolumne County 114 kmTulare County 115 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 1.5 (ml)
Depth
16 km below the surface
Felt
no reports yet
Nearest
Madera County, 50 km W
Status
Automatic — a machine’s first estimate, which may change

USGS · last changed by USGS · we first saw it 1887 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

USGS catalogues this as not reported, not an earthquake.

How big was it?

This earthquake released about 5.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,800,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 2,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 180× the energy of this one
  4. This earthquake M 1.5 about 5.4 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 37.2087, -119.1808. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Madera County, CA 50 km (31 mi) E of here earthquakes near Madera County
Fresno County, CA 65 km (41 mi) NE of here earthquakes near Fresno County
Mariposa County, CA 76 km (47 mi) ESE of here earthquakes near Mariposa County
Mono County, CA 83 km (52 mi) SSW of here earthquakes near Mono County
Tuolumne County, CA 114 km (71 mi) SE of here earthquakes near Tuolumne County
Tulare County, CA 115 km (71 mi) NNW of here earthquakes near Tulare County

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

Aftershocks so far

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

  1. 3.1 15km WSW of Toms Place, CA
  2. 2.6 15km WSW of Toms Place, CA
  3. 2.0 10km WSW of Toms Place, CA
  4. 2.9 10km WSW of Toms Place, CA
  5. 1.9 6km NW of North Fork, CA
  6. 2.0 8km SE of Oakhurst, CA
  7. 1.5 27km S of Mammoth Lakes, CA
  8. 1.8 10km WSW of Toms Place, CA
  9. 2.8 14km NNE of Shaver Lake, CA
  10. 2.8 10km SW of Toms Place, CA
  11. 2.0 12km W of Toms Place, CA
  12. 1.5 17km SSE of Mammoth Lakes, CA
  13. 1.8 16km SE of Mammoth Lakes, CA
  14. 2.1 9km WSW of Toms Place, CA
  15. 1.9 16km SW of Toms Place, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.0 on 2020-04-05 — it released about 6,700 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.