Earthquake · reviewed by a seismologist
M 2.0md
Earthquake near Corning, CA
No earthquake was likely felt in Corning in the 24 hours to 11:15 pm PST (07:15 UTC). The last one was M 4.0, 81 km (51 mi) SW, at 5:01 am PDT on 28 October 2026, estimated intensity II (weak) in town; 14 felt reports to USGS. Every earthquake near Corning
This page: a magnitude 2.0 earthquake was recorded 26 km (16 mi) west of Corning, CA, at 8:13 am PDT on 1 July 2017 (15:13 UTC), 16 km deep.
USGS: 4 km WSW of Flournoy, California
59 km (36 mi) WNW of Chico, CA
- When
- 8:13 am PDT on 1 July 2017 ()
- Where
- 26 km (16 mi) west of Corning, CA · earthquakes near Corning
- Magnitude
- M 2.0 (md)
- Depth
- 16 km below the surface
- Felt
- no reports yet
- Nearest
- Tehama County, 33 km NE
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 3412 days ago
Earthquake alerts for Corning, 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 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 5 km (3 mi) from the epicentre. In Corning, 26 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.
Earthquakes near other towns within 30 km: Rancho Tehama Reserve, Orland.
How big was it?
This earthquake released about 35 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 440,000× the energy of this one
- Magna, Utah 2020 M 5.7 310,000× the energy of this one
- Around the size people start to feel M 3.0 28× the energy of this one
- This earthquake M 2.0 about 35 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 one earthquake of M5 or more within 50 km:
- 5.5 33 km NW of Rancho Tehama Reserve, California · 39 km NNW 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 39.9005, -122.4787. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Tehama County, CA | 33 km (20 mi) | NE | earthquakes near Tehama County |
| Glenn County, CA | 34 km (21 mi) | SSE | earthquakes near Glenn County |
| Butte County, CA | 79 km (49 mi) | ESE | earthquakes near Butte County |
| Colusa County, CA | 83 km (52 mi) | SSE | earthquakes near Colusa County |
| Lake County, CA | 91 km (57 mi) | SSW | earthquakes near Lake County |
| Mendocino County, CA | 98 km (61 mi) | WSW | earthquakes near Mendocino County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
43 earthquakes have been recorded within 50 km since this one.
- 1.7 24km NW of Alder Springs, CA
- 1.9 6km NNE of Hamilton City, CA
- 1.5 34km WNW of Rancho Tehama Reserve, CA
- 1.9 37km W of Rancho Tehama Reserve, CA
- 1.7 38km NNW of Alder Springs, CA
- 1.9 28km NW of Alder Springs, CA
- 2.4 41km NE of Covelo, CA
- 1.9 32km NNW of Alder Springs, CA
- 1.6 32km NNW of Alder Springs, CA
- 1.8 39km NE of Covelo, CA
- 1.6 39km NE of Covelo, CA
- 1.7 39km NE of Covelo, CA
- 2.8 40km NE of Covelo, CA
- 1.7 36km NNW of Alder Springs, CA
- 1.7 28km NW of Alder Springs, 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.