Earthquake · automatic estimate, may change
M 2.6md
Earthquake near Esparto, CA
No earthquake was likely felt in Esparto in the 24 hours to 5:56 am PST (13:56 UTC). The last one was M 4.2, 80 km (50 mi) W, at 7:40 pm PDT on 28 July 2026, estimated intensity II (weak) in town; 240 felt reports to USGS. Every earthquake near Esparto
This page: a magnitude 2.6 earthquake was recorded 10 km (6 mi) south of Esparto, CA, at 3:14 am PDT on 19 October 2020 (10:14 UTC), 9.5 km deep. 14 people have reported feeling it to USGS. The magnitude and location are an automatic first estimate and may change.
USGS: 10km S of Esparto, CA
49 km (31 mi) W of Sacramento, CA · 26 km (16 mi) WSW of Woodland, CA
- When
- 3:14 am PDT on 19 October 2020 ()
- Where
- 10 km (6 mi) south of Esparto, CA · earthquakes near Esparto
- Magnitude
- M 2.6 (md)
- Depth
- 9.5 km below the surface
- Felt
- 14 reports · strongest reported intensity IV
- Nearest
- Yolo County, 14 km NE
- Nearest mapped fault
- Great Valley thrust fault system, 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 2144 days ago
Earthquake alerts for Esparto, CA
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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 small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.
At this magnitude and depth, people at rest would likely notice it out to about 21 km (13 mi) from the epicentre. In Esparto, 10 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: Monument Hills 15 km, intensity II. Estimated for each town centre; each link is that town's own record.
How big was it?
This earthquake released about 230 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 65,000× the energy of this one
- Magna, Utah 2020 M 5.7 46,000× the energy of this one
- Around the size people start to feel M 3.0 4.1× the energy of this one
- This earthquake M 2.6 about 230 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 2 earthquakes of M5 or more within 50 km:
- 6.0 The 2014 South Napa, California Earthquake · 50 km SSW of this epicentre
- 5.4 South of Elmira, California · 36 km SSE 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 38.6067, -122.0343. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Yolo County, CA | 14 km (9 mi) | NE | earthquakes near Yolo County |
| Napa County, CA | 28 km (17 mi) | WSW | earthquakes near Napa County |
| Solano County, CA | 39 km (24 mi) | SSE | earthquakes near Solano County |
| Sutter County, CA | 56 km (35 mi) | NNE | earthquakes near Sutter County |
| Sacramento County, CA | 62 km (39 mi) | ESE | earthquakes near Sacramento County |
| Colusa County, CA | 66 km (41 mi) | NNW | earthquakes near Colusa 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.
- 3.6 11km ESE of Angwin, CA
- 1.8 14km E of Angwin, CA
- 1.6 15km E of Angwin, CA
- 1.8 12km ENE of Angwin, CA
- 1.6 14km E of Angwin, CA
- 1.7 11km E of Hidden Valley Lake, CA
- 1.5 12km E of Angwin, CA
- 2.3 11km E of Hidden Valley Lake, CA
- 1.6 13km ESE of Angwin, CA
- 1.6 14km ESE of Angwin, CA
- 2.1 10km ESE of Angwin, CA
- 1.5 9km NE of Hidden Valley Lake, CA
- 1.8 9km NE of Hidden Valley Lake, CA
- 1.7 9km NNE of Yountville, CA
- 1.6 6km SE of St. 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.