QuakeIndex

Earthquake · automatic estimate, may change

M 1.8md

Earthquake near Paso Robles, CA

No earthquake was likely felt in Paso Robles in the 24 hours to 5:37 am PST (13:37 UTC). The last one was M 2.5, 21 km (13 mi) S, at 11:41 pm PDT on 15 August 2026, estimated intensity II (weak) in town; 61 felt reports to USGS. Every earthquake near Paso Robles

This page: a magnitude 1.8 earthquake was recorded 42 km (26 mi) north-northwest of Paso Robles, CA, at 3:26 pm PST on 3 November 2026 (23:26 UTC), 9.7 km deep. The magnitude and location are an automatic first estimate and may change.

USGS: 6 km SE of San Ardo, CA

3:26 pm PST, Nov 3, 2026 · · 9.7 km deep · released about 17 lb of TNT

10 km30 km60 km120 km N Monterey County 49 kmSan Benito County 73 kmSan Luis Obispo County 76 kmKings County 95 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
3:26 pm PST on 3 November 2026 ()
Where
42 km (26 mi) north-northwest of Paso Robles, CA · earthquakes near Paso Robles
Magnitude
M 1.8 (md)
Depth
9.7 km below the surface
Felt
no reports yet
Nearest
Monterey County, 49 km NW
Nearest mapped fault
San Andreas fault, 22 km from its surface trace — near is not the same as on
Status
Automatic — a machine’s first estimate, which may change

USGS · last changed by USGS · we first saw it 9 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 10 km (6 mi) from the epicentre. In Paso Robles, 42 km away, the estimate is intensity I (not felt). 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, San Miguel.

How big was it?

This earthquake released about 17 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 5.8 900,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 640,000× the energy of this one
  3. Around the size people start to feel M 3.0 57× the energy of this one
  4. This earthquake M 1.8 about 17 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 4.7 on 2021-10-25 — about 17,000 times the energy of this one.

Before 2016, the USGS record lists 16 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.5 10 km NE of San Simeon, California · 37 km SW of this epicentre
  2. 6.4 1901 Parkfield, California Earthquake · 33 km E of this epicentre
  3. 6.0 2004 Parkfield, California Earthquake · 49 km ESE of this epicentre
  4. 5.8 29 km NE of San Lucas, California · 37 km NNE of this epicentre
  5. 5.8 1934 Parkfield, California Earthquake · 24 km SE 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 35.9798, -120.8693. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Monterey County, CA 49 km (31 mi) NW earthquakes near Monterey County
San Benito County, CA 73 km (45 mi) NNW earthquakes near San Benito County
San Luis Obispo County, CA 76 km (47 mi) SSE earthquakes near San Luis Obispo County
Kings County, CA 95 km (59 mi) E earthquakes near Kings County
Fresno County, CA 139 km (86 mi) NE earthquakes near Fresno County
Santa Cruz County, CA 153 km (95 mi) NW earthquakes near Santa Cruz County

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

Aftershocks so far

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

  1. 1.2 15 km SW of Parkfield, CA
  2. 1.5 23 km ENE of San Lucas, CA
  3. 2.1 22 km NE of San Lucas, CA
  4. 0.7 2 km S of Parkfield, CA
  5. 1.1 12 km ESE of San Ardo, CA
  6. 1.6 24 km SE of Pinnacles, CA
  7. 2.5 23 km SE of Pinnacles, CA
  8. 1.8 10 km S of San Lucas, CA
  9. 1.7 13 km NE of San Simeon, CA
  10. 0.3 23 km ENE of San Lucas, CA
  11. 1.5 13 km NE of San Simeon, CA
  12. 1.3 13 km NW of Parkfield, CA
  13. 0.6 10 km WNW of Bradley, CA
  14. 2.1 5 km SSE of San Ardo, CA
  15. 1.1 11 km NW of Parkfield, 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.