Earthquake · reviewed by a seismologist
M 2.7md
Earthquake near Orange Cove, CA
No earthquake was likely felt in Orange Cove in the 24 hours to 6:19 pm PST (02:19 UTC). The last one was M 2.7, in Orange Cove, at 8:40 am PDT on 24 September 2026, estimated intensity II (weak) in town; 1 felt report to USGS. Every earthquake near Orange Cove
This page: a magnitude 2.7 earthquake was recorded 45 km (28 mi) northeast of Orange Cove, CA, at 11:43 pm PDT on 9 October 2017 (06:43 UTC), 2.3 km deep. 2 people have reported feeling it to USGS.
USGS: 21 km N of Wilsonia, California
74 km (46 mi) ENE of Fresno, CA
- When
- 11:43 pm PDT on 9 October 2017 ()
- Where
- 45 km (28 mi) northeast of Orange Cove, CA · earthquakes near Orange Cove
- Magnitude
- M 2.7 (md)
- Depth
- 2.3 km below the surface
- Felt
- 2 reports · strongest reported intensity III
- Nearest
- Fresno County, 63 km WSW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 3319 days ago
Earthquake alerts for Orange Cove, CA
Get a notification in this browser when USGS records an earthquake near Orange Cove, 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 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 25 km (16 mi) from the epicentre. In Orange Cove, 45 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.
How big was it?
This earthquake released about 340 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 45,000× the energy of this one
- Magna, Utah 2020 M 5.7 32,000× the energy of this one
- Around the size people start to feel M 3.0 2.8× the energy of this one
- This earthquake M 2.7 about 340 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 since 1900 lists no earthquake of M5 or more within 50 km.
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 36.9300, -118.9840. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Fresno County, CA | 63 km (39 mi) | WSW | earthquakes near Fresno County |
| Madera County, CA | 75 km (46 mi) | WNW | earthquakes near Madera County |
| Tulare County, CA | 80 km (50 mi) | SSE | earthquakes near Tulare County |
| Mariposa County, CA | 109 km (68 mi) | NW | earthquakes near Mariposa County |
| Mono County, CA | 110 km (68 mi) | N | earthquakes near Mono County |
| Kings County, CA | 121 km (75 mi) | SW | earthquakes near Kings County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
28 earthquakes have been recorded within 50 km since this one.
- 1.5 17km S of Round Valley, CA
- 2.2 6km W of Squaw Valley, CA
- 2.2 5km N of Shaver Lake, CA
- 1.5 26 km SW of Big Pine, California
- 2.6 16km SSW of Round Valley, CA
- 1.8 18km WSW of Wilkerson, CA
- 1.5 18km WSW of Wilkerson, CA
- 3.0 28km SW of Wilkerson, CA
- 1.7 27km WSW of Wilkerson, CA
- 1.8 27km WSW of Wilkerson, CA
- 2.1 11km NNW of Orange Cove, CA
- 2.4 29km S of Mammoth Lakes, CA
- 2.3 26km WSW of Wilkerson, CA
- 2.0 16km ENE of Shaver Lake, CA
- 1.9 11km ENE of Shaver Lake, 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.