QuakeIndex

Earthquake · automatic estimate, may change

M 1.5md

15 km WSW of Firebaugh, CA

· 0.7 km deep · released about 5.7 lb of TNT

10 km30 km60 km120 km N Merced County 42 kmSan Benito County 48 kmFresno County 86 kmMadera County 88 kmStanislaus County 89 kmMonterey County 90 kmMariposa County 104 kmSanta Clara County 105 kmKings 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 1.5 (md)
Depth
0.7 km below the surface
Felt
no reports yet
Nearest
Merced County, 42 km NNW
Status
Automatic — a machine’s first estimate, which may change

USGS · last changed by USGS · we first saw it 3 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 5.7 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 2,600,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,900,000× the energy of this one
  3. Around the size people start to feel M 3.0 170× the energy of this one
  4. This earthquake M 1.5 about 5.7 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 36.8262, -120.6140. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Merced County, CA 42 km (26 mi) SSE of here earthquakes near Merced County
San Benito County, CA 48 km (30 mi) ENE of here earthquakes near San Benito County
Fresno County, CA 86 km (53 mi) W of here earthquakes near Fresno County
Madera County, CA 88 km (55 mi) WSW of here earthquakes near Madera County
Stanislaus County, CA 89 km (55 mi) SSE of here earthquakes near Stanislaus County
Monterey County, CA 90 km (56 mi) NE of here earthquakes near Monterey County

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

Aftershocks so far

1 earthquake has been recorded within 50 km since this one.

  1. 1.2 13 km NNE of Pinnacles, 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.