QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2md

Earthquake near Cambria, CA

No earthquake was likely felt in Cambria in the 24 hours to 7:40 am PST (15:40 UTC). The last one was M 2.3, 18 km (11 mi) NNE, at 5:04 pm PDT on 21 September 2026, estimated intensity II (weak) in town. Every earthquake near Cambria

This page: a magnitude 2.2 earthquake was recorded 48 km (30 mi) northwest of Cambria, CA, at 5:41 am PDT on 17 March 2022 (12:41 UTC), 5.5 km deep.

USGS: 23km SSE of Lopez Point, CA

97 km (61 mi) S of Salinas, CA

5:41 am PDT, Mar 17, 2022 · · 5.5 km deep · released about 58 lb of TNT

10 km30 km60 km120 km N Monterey County 50 kmSan Benito County 96 kmSan Luis Obispo County 108 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
5:41 am PDT on 17 March 2022 ()
Where
48 km (30 mi) northwest of Cambria, CA · earthquakes near Cambria
Magnitude
M 2.2 (md)
Depth
5.5 km below the surface
Felt
no reports yet
Nearest
Monterey County, 50 km NNE
Nearest mapped fault
San Gregorio fault, 6 km from its surface trace — near is not the same as on
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1701 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth, people at rest would likely notice it out to about 18 km (11 mi) from the epicentre. In Cambria, 48 km away, the estimate is intensity II (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

How big was it?

This earthquake released about 58 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 260,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 180,000× the energy of this one
  3. Around the size people start to feel M 3.0 16× the energy of this one
  4. This earthquake M 2.2 about 58 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.

For this area

The largest earthquake within 50 km since 2016 was M 4.7 on 2021-10-25 — about 4,900 times the energy of this one.

Before 2016, the USGS record lists 5 earthquakes of M5 or more within 50 km:

  1. 6.5 10 km NE of San Simeon, California · 40 km ESE of this epicentre
  2. 6.2 28km NW of Cambria, CA · 20 km ESE of this epicentre
  3. 5.7 Southwest of Cambria, California · 46 km SE of this epicentre
  4. 5.2 25 km NW of San Simeon, California · 14 km E of this epicentre
  5. 5.2 22 km NW of San Simeon, California · 16 km E of this epicentre

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 35.8193, -121.5160. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Monterey County, CA 50 km (31 mi) NNE earthquakes near Monterey County
San Benito County, CA 96 km (60 mi) NNE earthquakes near San Benito County
San Luis Obispo County, CA 108 km (67 mi) ESE earthquakes near San Luis Obispo County

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

Aftershocks so far

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

  1. 2.1 25km NW of San Simeon, CA
  2. 2.6 24km NW of San Simeon, CA
  3. 2.7 28km SSE of Lopez Point, CA
  4. 1.6 20km SE of Lopez Point, CA
  5. 1.6 20km NW of San Simeon, CA
  6. 1.6 25km NW of San Simeon, CA
  7. 1.6 8km NNE of San Simeon, CA
  8. 1.6 8km NNE of San Simeon, CA
  9. 1.6 17km SSE of Lopez Point, CA
  10. 2.4 2km E of Lopez Point, CA
  11. 2.3 25km NW of San Simeon, CA
  12. 1.8 13km NE of San Simeon, CA
  13. 1.6 17km NNE of San Simeon, CA
  14. 1.6 16km NNW of San Simeon, CA
  15. 1.9 9km NE 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.