QuakeIndex

Earthquake · automatic estimate, may change

M 1.6md

Earthquake near Berkeley, CA

Yes. A magnitude 1.6 earthquake was recorded 2 km (2 mi) east of Berkeley, CA, at 6:31 pm PST on 1 November 2026 (02:31 UTC), 9.8 km deep. No felt reports to USGS yet. The magnitude and location are an automatic first estimate and may change.

USGS: 3 km E of Berkeley, CA

18 km (11 mi) ENE of San Francisco, CA · in Berkeley, CA

6:31 pm PST, Nov 1, 2026 · · 9.8 km deep · released about 6.4 lb of TNT

10 km30 km60 km120 km N Contra Costa County 26 kmAlameda County 38 kmMarin County 48 kmSan Mateo County 52 kmSolano County 52 kmSan Francisco County 71 kmNapa County 71 kmSan Joaquin County 86 kmSanta Clara County 87 km
Distance rings around the epicentre, with the nearest towns at their true direction. Not a shaking map — see the USGS ShakeMap for that.
When
6:31 pm PST on 1 November 2026 ()
Where
2 km (2 mi) east of Berkeley, CA · earthquakes near Berkeley
Magnitude
M 1.6 (md)
Depth
9.8 km below the surface
Felt
no reports yet
Nearest
Contra Costa County, 26 km ENE
Nearest mapped fault
Hayward fault, under 1 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 3 hours 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 4 km (2 mi) from the epicentre. In Berkeley, 2 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: Berkeley 2 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 6.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,400,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,700,000× the energy of this one
  3. Around the size people start to feel M 3.0 150× the energy of this one
  4. This earthquake M 1.6 about 6.4 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 4.5 on 2019-10-15 — about 23,000 times the energy of this one.

Before 2016, the USGS record lists 6 earthquakes of M5 or more within 50 km; the five largest:

  1. 7.9 The 1906 San Francisco, California Earthquake · 30 km WSW of this epicentre
  2. 6.0 The 2014 South Napa, California Earthquake · 39 km N of this epicentre
  3. 5.8 The 1980 Livermore, California Earthquake · 42 km E of this epicentre
  4. 5.4 9 km NE of Livermore, California · 49 km ESE of this epicentre
  5. 5.3 The 1957 San Francisco, California Earthquake · 31 km SW 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 37.8682, -122.2455. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Contra Costa County, CA 26 km (16 mi) ENE earthquakes near Contra Costa County
Alameda County, CA 38 km (24 mi) SE earthquakes near Alameda County
Marin County, CA 48 km (30 mi) WNW earthquakes near Marin County
San Mateo County, CA 52 km (32 mi) SSW earthquakes near San Mateo County
Solano County, CA 52 km (32 mi) NNE earthquakes near Solano County
San Francisco County, CA 71 km (44 mi) WSW earthquakes near San Francisco County

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

Aftershocks so far

No further earthquakes have been recorded within 50 km since this one.

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.