QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0md

Earthquake near Cambria, CA

No earthquake was likely felt in Cambria in the 24 hours to 9:15 am PST (17:15 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 2.0 earthquake was recorded 17 km (10 mi) north of Cambria, CA, at 5:08 pm PDT on 31 August 2019 (00:08 UTC), 8.3 km deep.

USGS: 11km NE of San Simeon, CA

5:08 pm PDT, Aug 31, 2019 · · 8.3 km deep · released about 33 lb of TNT

10 km30 km60 km120 km N Monterey County 62 kmSan Luis Obispo County 69 kmSan Benito County 100 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
5:08 pm PDT on 31 August 2019 ()
Where
17 km (10 mi) north of Cambria, CA · earthquakes near Cambria
Magnitude
M 2.0 (md)
Depth
8.3 km below the surface
Felt
no reports yet
Nearest
Monterey County, 62 km NNW
Nearest mapped fault
San Simeon fault, 11 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 2619 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 14 km (9 mi) from the epicentre. In Cambria, 17 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.

Earthquakes near other towns within 30 km: Lake Nacimiento.

How big was it?

This earthquake released about 33 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 450,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 320,000× the energy of this one
  3. Around the size people start to feel M 3.0 29× the energy of this one
  4. This earthquake M 2.0 about 33 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

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record lists 9 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.5 10 km NE of San Simeon, California · 1 km S of this epicentre
  2. 6.2 28km NW of Cambria, CA · 21 km W of this epicentre
  3. 5.8 1934 Parkfield, California Earthquake · 42 km ENE of this epicentre
  4. 5.7 Southwest of Cambria, California · 25 km SSW of this epicentre
  5. 5.2 26km NNW of Lake Nacimiento, CA · 29 km NNE 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 35.7117, -121.1005. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Monterey County, CA 62 km (38 mi) NNW earthquakes near Monterey County
San Luis Obispo County, CA 69 km (43 mi) ESE earthquakes near San Luis Obispo County
San Benito County, CA 100 km (62 mi) N earthquakes near San Benito County
Kings County, CA 123 km (76 mi) ENE earthquakes near Kings County

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

Aftershocks so far

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

  1. 1.8 11km NNE of Cayucos, CA
  2. 1.7 19km SSE of Lopez Point, CA
  3. 2.3 18km NNW of San Simeon, CA
  4. 2.2 20km NNW of San Simeon, CA
  5. 2.0 13km NE of San Simeon, CA
  6. 2.2 21km NW of San Simeon, CA
  7. 1.6 10km SSW of San Lucas, CA
  8. 1.9 10km NE of San Simeon, CA
  9. 1.8 11km NNE of Cayucos, CA
  10. 1.5 6km W of Templeton, CA
  11. 1.6 13km ENE of Cambria, CA
  12. 1.7 11km SSW of San Lucas, CA
  13. 1.7 5km W of Paso Robles, CA
  14. 1.5 12km NNE of San Simeon, CA
  15. 2.2 23km SSE 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.