QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4md

Earthquake near Cambria, CA

No earthquake was likely felt in Cambria in the 24 hours to 6:04 am PST (14:04 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 2.4 earthquake was recorded 43 km (26 mi) northwest of Cambria, CA, at 11:44 pm PDT on 24 June 2019 (06:44 UTC), 7.3 km deep. 6 people have reported feeling it to USGS.

USGS: 28km SSE of Lopez Point, CA

11:44 pm PDT, Jun 24, 2019 · · 7.3 km deep · released about 140 lb of TNT

Every earthquake near Cambria Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Monterey County 53 kmSan Benito County 98 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
11:44 pm PDT on 24 June 2019 ()
Where
43 km (26 mi) northwest of Cambria, CA · earthquakes near Cambria
Magnitude
M 2.4 (md)
Depth
7.3 km below the surface
Felt
6 reports · strongest reported intensity II
Nearest
Monterey County, 53 km NNE
Nearest mapped fault
San Gregorio fault, 5 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 2697 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 20 km (12 mi) from the epicentre. In Cambria, 43 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 140 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 110,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 78,000× the energy of this one
  3. Around the size people start to feel M 3.0 6.9× the energy of this one
  4. This earthquake M 2.4 about 140 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 7 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.5 10 km NE of San Simeon, California · 34 km ESE of this epicentre
  2. 6.2 28km NW of Cambria, CA · 14 km ESE of this epicentre
  3. 5.7 Southwest of Cambria, California · 40 km SE of this epicentre
  4. 5.2 26km NNW of Lake Nacimiento, CA · 49 km ENE of this epicentre
  5. 5.2 25 km NW of San Simeon, California · 11 km ENE 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 35.7817, -121.4680. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Monterey County, CA 53 km (33 mi) NNE earthquakes near Monterey County
San Benito County, CA 98 km (61 mi) NNE earthquakes near San Benito County
San Luis Obispo County, CA 102 km (63 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

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

  1. 1.6 9km NNE of Cambria, CA
  2. 1.6 10km NNW of Lopez Point, CA
  3. 1.8 2km NNW of Lopez Point, CA
  4. 1.7 15km NE of San Simeon, CA
  5. 2.5 16km NNW of Lopez Point, CA
  6. 2.4 18km NNE of San Simeon, CA
  7. 1.7 18km NNE of San Simeon, CA
  8. 2.1 14km NNW of Lopez Point, CA
  9. 1.6 12km S of San Lucas, CA
  10. 1.9 12km NE of San Simeon, CA
  11. 1.6 12km NE of San Simeon, CA
  12. 2.1 12km NE of San Simeon, CA
  13. 1.7 19km SSE of Lopez Point, CA
  14. 2.3 18km NNW of San Simeon, CA
  15. 2.2 20km NNW 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.