QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

Earthquake near Agua Dulce, CA

No earthquake was likely felt in Agua Dulce in the 24 hours to 5:34 am PST (13:34 UTC). The last one was M 3.8, 42 km (26 mi) WSW, at 8:00 pm PDT on 29 September 2026, estimated intensity II (weak) in town; 199 felt reports to USGS. Every earthquake near Agua Dulce

This page: a magnitude 1.8 earthquake was recorded in Agua Dulce, CA, at 4:59 pm PST on 13 November 2019 (00:59 UTC), 4.2 km deep.

USGS: 1km WNW of Agua Dulce, CA

54 km (33 mi) N of Los Angeles, CA · 18 km (11 mi) ENE of Santa Clarita, CA

4:59 pm PST, Nov 13, 2019 · · 4.2 km deep · released about 14 lb of TNT

Every earthquake near Agua Dulce Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Los Angeles County 34 kmVentura County 75 kmKern County 101 kmOrange County 105 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
4:59 pm PST on 13 November 2019 ()
Where
in Agua Dulce, CA · earthquakes near Agua Dulce
Magnitude
M 1.8 (ml)
Depth
4.2 km below the surface
Felt
no reports yet
Nearest
Los Angeles County, 34 km SSE
Nearest mapped fault
San Andreas fault, 12 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 2555 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 13 km (8 mi) from the epicentre. 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: Acton, Leona Valley, Quartz Hill, Desert View Highlands, Vincent, Palmdale.

How big was it?

This earthquake released about 14 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 790,000× the energy of this one
  3. Around the size people start to feel M 3.0 70× the energy of this one
  4. This earthquake M 1.8 about 14 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 17 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.7 Northridge, California, earthquake · 37 km SSW of this epicentre
  2. 6.6 1971 San Fernando Earthquake, California · 10 km SSW of this epicentre
  3. 5.9 1km ENE of Granada Hills, California · 29 km SSW of this epicentre
  4. 5.8 10km SSW of Agua Dulce, CA · 10 km SSW of this epicentre
  5. 5.8 10km SSW of Agua Dulce, CA · 10 km SSW 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 34.4997, -118.3367. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Los Angeles County, CA 34 km (21 mi) SSE earthquakes near Los Angeles County
Ventura County, CA 75 km (46 mi) WSW earthquakes near Ventura County
Kern County, CA 101 km (63 mi) NNW earthquakes near Kern County
Orange County, CA 105 km (65 mi) SSE earthquakes near Orange County

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

Aftershocks so far

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

  1. 1.7 0km NNW of San Fernando, CA
  2. 2.6 1km ESE of Sylmar, CA
  3. 1.5 1km SW of Sylmar, CA
  4. 2.7 1km SSE of Sylmar, CA
  5. 3.7 1km NNE of San Fernando, CA
  6. 2.1 1km SE of Sylmar, CA
  7. 1.9 1km NW of San Fernando, CA
  8. 3.1 1km N of San Fernando, CA
  9. 2.1 1km NNW of San Fernando, CA
  10. 2.1 1km ESE of Sylmar, CA
  11. 1.9 1km W of Sylmar, CA
  12. 2.1 1km WSW of Sylmar, CA
  13. 2.4 1km WSW of Sylmar, CA
  14. 2.5 1km WSW of Sylmar, CA
  15. 4.2 1km SE of Sylmar, 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.