QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8md

22km NNW of Lopez Point, CA

· 13 km deep · released about 450 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Monterey County 33 kmSan Benito County 71 kmSanta Cruz County 95 kmSanta Clara County 114 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 2.8 (md)
Depth
13 km below the surface
Felt
8 reports · strongest reported intensity III
Nearest
Monterey County, 33 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2227 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 8 people have reported feeling it to USGS.

How big was it?

This earthquake released about 450 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 34,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 24,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.1× the energy of this one
  4. This earthquake M 2.8 about 450 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 36.1968, -121.6843. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Monterey County, CA 33 km (21 mi) W of here earthquakes near Monterey County
San Benito County, CA 71 km (44 mi) SW of here earthquakes near San Benito County
Santa Cruz County, CA 95 km (59 mi) SSE of here earthquakes near Santa Cruz County
Santa Clara County, CA 114 km (71 mi) S of here earthquakes near Santa Clara County
Merced County, CA 140 km (87 mi) SW of here earthquakes near Merced County
San Luis Obispo County, CA 143 km (89 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

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

  1. 2.6 19km SSE of Lopez Point, CA
  2. 1.8 20km E of Point Sur, CA
  3. 2.4 2km E of Lopez Point, CA
  4. 1.7 3km ENE of Lopez Point, CA
  5. 2.3 3km ENE of Lopez Point, CA
  6. 3.0 3km ENE of Lopez Point, CA
  7. 3.5 2km ENE of Lopez Point, CA
  8. 3.0 3km ENE of Lopez Point, CA
  9. 1.8 16km NNW of Lopez Point, CA
  10. 1.7 9km SSW of Carmel By The Sea, CA
  11. 1.8 7km SSW of Gonzales, CA
  12. 1.6 9km NNE of Gonzales, CA
  13. 1.8 14km N of Point Sur, CA
  14. 1.6 17km N of Lopez Point, CA
  15. 1.6 14km SE of Lopez Point, 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.