QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6md

Earthquake near Cambria, CA

No earthquake was likely felt in Cambria in the 24 hours to 8:38 am PST (16:38 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 1.6 earthquake was recorded 16 km (10 mi) north of Cambria, CA, at 9:36 pm PST on 9 February 2019 (05:36 UTC), 9.2 km deep. 1 person has reported feeling it to USGS.

USGS: 14km ENE of San Simeon, CA

9:36 pm PST, Feb 9, 2019 · · 9.2 km deep · released about 7.3 lb of TNT

10 km30 km60 km120 km N Monterey County 64 kmSan Luis Obispo County 65 kmSan Benito County 101 kmKings County 119 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
9:36 pm PST on 9 February 2019 ()
Where
16 km (10 mi) north of Cambria, CA · earthquakes near Cambria
Magnitude
M 1.6 (md)
Depth
9.2 km below the surface
Felt
1 report · strongest reported intensity III
Nearest
Monterey County, 64 km NNW
Nearest mapped fault
San Simeon fault, 15 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 2829 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 6 km (4 mi) from the epicentre. In Cambria, 16 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 7.3 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,500,000× the energy of this one
  3. Around the size people start to feel M 3.0 130× the energy of this one
  4. This earthquake M 1.6 about 7.3 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 · 4 km W of this epicentre
  2. 6.2 28km NW of Cambria, CA · 25 km W of this epicentre
  3. 5.8 1934 Parkfield, California Earthquake · 38 km ENE of this epicentre
  4. 5.7 Southwest of Cambria, California · 26 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 35.7030, -121.0520. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Monterey County, CA 64 km (40 mi) NNW earthquakes near Monterey County
San Luis Obispo County, CA 65 km (40 mi) ESE earthquakes near San Luis Obispo County
San Benito County, CA 101 km (63 mi) N earthquakes near San Benito County
Kings County, CA 119 km (74 mi) ENE earthquakes near Kings County

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

Aftershocks so far

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

  1. 1.8 28km SSE of Lopez Point, CA
  2. 1.8 16km SSE of Lopez Point, CA
  3. 1.6 22km NNE of San Simeon, CA
  4. 1.6 20km NW of San Simeon, CA
  5. 2.0 33km S of Lopez Point, CA
  6. 1.6 9km SSW of Atascadero, CA
  7. 1.7 19km SSE of Lopez Point, CA
  8. 1.9 25km NW of San Simeon, CA
  9. 2.5 4km NW of San Simeon, CA
  10. 1.8 26km NW of San Simeon, CA
  11. 1.8 9km W of Templeton, CA
  12. 2.1 9km W of Templeton, CA
  13. 1.9 9km W of Templeton, CA
  14. 3.0 9km W of Templeton, CA
  15. 3.3 9km W of Templeton, 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.