Earthquake · reviewed by a seismologist
M 1.5md
Earthquake near Black Point-Green Point, CA
No earthquake was likely felt in Black Point-Green Point in the 24 hours to 9:17 pm PST (05:17 UTC). The last one was M 2.4, 6 km (4 mi) WSW, at 6:21 pm PDT on 26 September 2026, estimated intensity II (weak) in town. Every earthquake near Black Point-Green Point
This page: a magnitude 1.5 earthquake was recorded 7 km (4 mi) east-northeast of Black Point-Green Point, CA, at 3:14 pm PST on 12 January 2024 (23:14 UTC), 5.2 km deep.
USGS: 7 km ENE of Black Point-Green Point, CA
11 km (7 mi) ENE of Novato, CA · 39 km (24 mi) N of San Francisco, CA
- When
- 3:14 pm PST on 12 January 2024 ()
- Where
- 7 km (4 mi) east-northeast of Black Point-Green Point, CA · earthquakes near Black Point-Green Point
- Magnitude
- M 1.5 (md)
- Depth
- 5.2 km below the surface
- Felt
- no reports yet
- Nearest
- Marin County, 28 km WSW
- Nearest mapped fault
- Rodgers Creek 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 1033 days ago
Earthquake alerts for Black Point-Green Point, CA
Get a notification in this browser when USGS records an earthquake near Black Point-Green Point, CA. No account or email needed.
Alerts are on for .
Not a warning. An alert comes after USGS publishes a quake, usually minutes after the shaking. For early warning use ShakeAlert, through your phone's Wireless Emergency Alerts or the MyShake app.
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 9 km (6 mi) from the epicentre. In Black Point-Green Point, 7 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: Black Point-Green Point 7 km, intensity II. Estimated for each town centre; each link is that town's own record.
How big was it?
This earthquake released about 5.7 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.
- Mineral, Virginia 2011 M 5.8 2,600,000× the energy of this one
- Magna, Utah 2020 M 5.7 1,900,000× the energy of this one
- Around the size people start to feel M 3.0 170× the energy of this one
- This earthquake M 1.5 about 5.7 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 26,000 times the energy of this one.
Before 2016, the USGS record lists 4 earthquakes of M5 or more within 50 km:
- 7.9 The 1906 San Francisco, California Earthquake · 43 km SSW of this epicentre
- 6.0 The 2014 South Napa, California Earthquake · 15 km NE of this epicentre
- 5.3 3 km E of Bloomfield, California · 38 km WNW of this epicentre
- 5.3 Northern California · 40 km WNW 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 38.1300, -122.4395. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Marin County, CA | 28 km (18 mi) | WSW | earthquakes near Marin County |
| Napa County, CA | 43 km (27 mi) | NNE | earthquakes near Napa County |
| Solano County, CA | 46 km (29 mi) | ENE | earthquakes near Solano County |
| Contra Costa County, CA | 49 km (30 mi) | ESE | earthquakes near Contra Costa County |
| Sonoma County, CA | 61 km (38 mi) | NW | earthquakes near Sonoma County |
| San Francisco County, CA | 69 km (43 mi) | SW | earthquakes near San Francisco County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
59 earthquakes have been recorded within 50 km since this one.
- 1.8 1 km NNW of Orinda, CA
- 1.7 7 km SSW of Muir Beach, CA
- 1.6 6 km ENE of Vallejo, CA
- 2.1 3 km ESE of Berkeley, CA
- 2.2 7 km SSW of Muir Beach, CA
- 1.9 3 km ESE of Berkeley, CA
- 1.5 6 km E of Walnut Creek, CA
- 3.2 3 km ESE of Berkeley, CA
- 1.6 14 km NNE of Napa, CA
- 1.7 8 km SW of Calistoga, CA
- 1.5 7 km E of Santa Venetia, CA
- 1.7 1 km W of Pacheco, CA
- 3.0 4 km NE of Santa Rosa, CA
- 1.5 7 km E of Santa Venetia, CA
- 1.5 3 km NE of Saint Helena, 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
- The official USGS event page — the source of record for every value above
- Did you feel it? Report it to USGS — reports go to USGS, not to us
- ShakeMap for this event, when USGS has produced one
QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.