QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6md

25 km SSE of Lopez Point, CA

· 4.2 km deep · released about 6.4 lb of TNT

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10 km30 km60 km120 km N Monterey County 48 kmSan Benito County 94 kmSan Luis Obispo County 102 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 1.6 (md)
Depth
4.2 km below the surface
Felt
no reports yet
Nearest
Monterey County, 48 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 388 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 6.4 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 2,400,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,700,000× the energy of this one
  3. Around the size people start to feel M 3.0 150× the energy of this one
  4. This earthquake M 1.6 about 6.4 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 35.8197, -121.4485. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Monterey County, CA 48 km (30 mi) SSW of here earthquakes near Monterey County
San Benito County, CA 94 km (58 mi) SSW of here earthquakes near San Benito County
San Luis Obispo County, CA 102 km (64 mi) WNW 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

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

  1. 2.2 4 km E of Lopez Point, CA
  2. 1.7 3 km E of Lopez Point, CA
  3. 1.9 20 km W of San Simeon, CA
  4. 2.1 2 km SW of San Simeon, CA
  5. 1.9 27 km NW of San Simeon, CA
  6. 2.3 15 km NW of San Simeon, CA
  7. 2.5 22 km SSW of King City, CA
  8. 2.3 7 km NE of San Simeon, CA
  9. 1.6 25 km NW of San Simeon, CA
  10. 1.7 20 km N of San Simeon, CA
  11. 1.6 15 km NW of San Simeon, CA
  12. 1.7 26 km W of San Simeon, CA
  13. 1.9 8 km WSW of San Ardo, CA
  14. 2.2 8 km WSW of San Ardo, CA
  15. 1.5 16 km WSW of Cambria, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.7 on 2021-10-25 — it released about 45,000 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.