QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8md

2km NNW of Lopez Point, CA

· 16 km deep · released about 15 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Monterey County 32 kmSan Benito County 77 kmSanta Cruz 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 1.8 (md)
Depth
16 km below the surface
Felt
no reports yet
Nearest
Monterey County, 32 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2391 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 15 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 730,000× the energy of this one
  3. Around the size people start to feel M 3.0 65× the energy of this one
  4. This earthquake M 1.8 about 15 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 36.0388, -121.5747. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Monterey County, CA 32 km (20 mi) SW of here earthquakes near Monterey County
San Benito County, CA 77 km (48 mi) SW of here earthquakes near San Benito County
Santa Cruz County, CA 115 km (71 mi) SSE of here earthquakes near Santa Cruz County
San Luis Obispo County, CA 125 km (78 mi) NW 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

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

  1. 3.0 3km ENE of Lopez Point, CA
  2. 3.5 2km ENE of Lopez Point, CA
  3. 3.0 3km ENE of Lopez Point, CA
  4. 1.7 16km NNW of San Simeon, CA
  5. 1.8 22km N of San Simeon, CA
  6. 1.8 26km NNW of San Simeon, CA
  7. 1.8 16km NNW of Lopez Point, CA
  8. 1.9 26km NW of San Simeon, CA
  9. 1.8 7km SSW of Gonzales, CA
  10. 1.8 25km NW of San Simeon, CA
  11. 2.1 24km NNW of San Simeon, CA
  12. 1.6 17km N of Lopez Point, CA
  13. 1.6 14km SE of Lopez Point, CA
  14. 2.3 23km NNW of San Simeon, CA
  15. 1.7 11km N of San Simeon, 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.