QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7md

28 km WNW of Del Monte Forest, CA

· 16 km deep · released about 9.3 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Santa Cruz County 38 kmSanta Clara County 74 kmSan Mateo County 79 kmMonterey County 97 kmSan Benito County 102 kmAlameda County 107 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
16 km below the surface
Felt
no reports yet
Nearest
Santa Cruz County, 38 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 387 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 36.7138, -122.2202. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Santa Cruz County, CA 38 km (24 mi) SSW of here earthquakes near Santa Cruz County
Santa Clara County, CA 74 km (46 mi) SW of here earthquakes near Santa Clara County
San Mateo County, CA 79 km (49 mi) S of here earthquakes near San Mateo County
Monterey County, CA 97 km (60 mi) WNW of here earthquakes near Monterey County
San Benito County, CA 102 km (63 mi) W of here earthquakes near San Benito County
Alameda County, CA 107 km (67 mi) SSW of here earthquakes near Alameda County

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

Aftershocks so far

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

  1. 1.8 11 km SSW of La Selva Beach, CA
  2. 2.1 13 km S of Carmel By The Sea, CA
  3. 2.1 14 km S of Carmel By The Sea, CA
  4. 2.4 12 km WNW of Bonny Doon, CA
  5. 1.7 1 km ESE of Boulder Creek, CA
  6. 1.6 3 km ESE of Boulder Creek, CA
  7. 1.6 0 km SW of Boulder Creek, CA
  8. 4.6 1 km SE of Boulder Creek, CA
  9. 2.3 16 km NW of Pacific Grove, CA
  10. 2.5 1 km SW of Aptos Hills-Larkin Valley, CA
  11. 2.3 10 km SW of Bonny Doon, CA
  12. 2.8 4 km N of Corralitos, CA
  13. 2.0 23 km SW of Bonny Doon, 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.