QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7md

18km SSW of Cantua Creek, CA

· 11 km deep · released about 9.3 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Kings County 62 kmSan Benito County 67 kmFresno County 80 kmMonterey County 83 kmMerced County 97 kmSan Luis Obispo County 108 kmMadera County 111 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 1.7 (md)
Depth
11 km below the surface
Felt
no reports yet
Nearest
Kings County, 62 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3195 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 9.3 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,600,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,100,000× the energy of this one
  3. Around the size people start to feel M 3.0 100× the energy of this one
  4. This earthquake M 1.7 about 9.3 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 36.3610, -120.4050. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Kings County, CA 62 km (38 mi) WNW of here earthquakes near Kings County
San Benito County, CA 67 km (42 mi) ESE of here earthquakes near San Benito County
Fresno County, CA 80 km (50 mi) WSW of here earthquakes near Fresno County
Monterey County, CA 83 km (51 mi) E of here earthquakes near Monterey County
Merced County, CA 97 km (60 mi) SSE of here earthquakes near Merced County
San Luis Obispo County, CA 108 km (67 mi) N of here earthquakes near San Luis Obispo County

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

Aftershocks so far

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

  1. 2.0 17km NW of Parkfield, CA
  2. 1.7 20km SW of New Idria, CA
  3. 1.5 7km E of Coalinga, CA
  4. 2.0 5km ENE of New Idria, CA
  5. 3.0 17km NNE of New Idria, CA
  6. 1.7 15km WSW of Cantua Creek, CA
  7. 1.9 24km NW of Parkfield, CA
  8. 1.7 7km S of Huron, CA
  9. 1.6 10km SW of Huron, CA
  10. 2.0 24km NW of Parkfield, CA
  11. 1.7 2km SSW of New Idria, CA
  12. 2.6 17km NW of Parkfield, CA
  13. 1.6 24km NNE of San Ardo, CA
  14. 2.4 3km SSW of Huron, CA
  15. 2.1 24km NE of King City, 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.