QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6md

Earthquake near Laytonville, CA

No earthquake was likely felt in Laytonville in the 24 hours to 6:47 am PST (14:47 UTC). The last one was M 2.4, 13 km (8 mi) WSW, at 7:25 am PST on 4 November 2026, estimated intensity II (weak) in town. Every earthquake near Laytonville

This page: a magnitude 1.6 earthquake was recorded 9 km (6 mi) west-northwest of Laytonville, CA, at 12:25 pm PST on 7 November 2024 (20:25 UTC), less than 1 km deep.

USGS: 9 km NW of Laytonville, CA

12:25 pm PST, Nov 7, 2024 · · -0.9 km deep · released about 6.6 lb of TNT

10 km30 km60 km120 km N Mendocino County 34 kmLake County 99 kmGlenn County 102 kmTrinity County 110 kmHumboldt County 113 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
12:25 pm PST on 7 November 2024 ()
Where
9 km (6 mi) west-northwest of Laytonville, CA · earthquakes near Laytonville
Magnitude
M 1.6 (md)
Depth
-0.9 km below the surface
Felt
no reports yet
Nearest
Mendocino County, 34 km SSE
Nearest mapped fault
Maacama fault, 3 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 731 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 11 km (7 mi) from the epicentre. In Laytonville, 9 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.

Likely felt in: Laytonville 9 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 6.6 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 2,300,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,600,000× the energy of this one
  3. Around the size people start to feel M 3.0 140× the energy of this one
  4. This earthquake M 1.6 about 6.6 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 4.3 on 2024-06-22 — about 15,000 times the energy of this one.

Before 2016, the USGS record lists 2 earthquakes of M5 or more within 50 km:

  1. 5.9 9 km S of Leggett, California · 15 km WNW of this epicentre
  2. 5.5 7 km ESE of Shelter Cove, California · 47 km NW 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 39.7218, -123.5823. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Mendocino County, CA 34 km (21 mi) SSE earthquakes near Mendocino County
Lake County, CA 99 km (62 mi) SE earthquakes near Lake County
Glenn County, CA 102 km (63 mi) E earthquakes near Glenn County
Trinity County, CA 110 km (69 mi) NNE earthquakes near Trinity County
Humboldt County, CA 113 km (70 mi) NNW earthquakes near Humboldt County
Tehama County, CA 124 km (77 mi) ENE earthquakes near Tehama County

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

Aftershocks so far

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

  1. 1.6 14 km NNE of Brooktrails, CA
  2. 2.4 19 km ENE of Rockport, CA
  3. 2.1 19 km ENE of Rockport, CA
  4. 2.5 11 km NNE of Covelo, CA
  5. 1.7 11 km NNE of Covelo, CA
  6. 1.9 19 km ENE of Rockport, CA
  7. 1.8 1 km NNW of Redway, CA
  8. 1.5 18 km SW of Laytonville, CA
  9. 1.6 7 km ESE of Willits, CA
  10. 1.6 15 km SSE of Covelo, CA
  11. 1.5 15 km SW of Willits, CA
  12. 1.7 7 km WNW of Laytonville, CA
  13. 2.0 6 km WNW of Laytonville, CA
  14. 2.1 7 km WNW of Laytonville, CA
  15. 1.7 20 km ENE of Rockport, 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.