Earthquake · reviewed by a seismologist
M 2.8md
Earthquake near Tulare, CA
USGS: Central California
10 km (6 mi) S of Visalia, CA · in Tulare, CA
- When
- 7:49 am PST on 8 January 2017 ()
- Where
- 4 km (2 mi) N of Tulare, CA · earthquakes near Tulare
- Magnitude
- M 2.8 (md)
- Depth
- 34 km below the surface
- Felt
- 3 reports · strongest reported intensity II
- Nearest
- Kings County, 47 km WSW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 3543 days ago
A magnitude 2.8 earthquake was recorded 4 km (2 mi) N of Tulare, CA, at 7:49 am PST on 8 January 2017 (15:49 UTC). 3 people have reported feeling it to USGS. This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.
Earthquakes near other towns within 30 km: Matheny, Visalia, Farmersville, Goshen, Patterson Tract, Exeter.
How big was it?
This earthquake released about 420 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 36,000× the energy of this one
- Magna, Utah 2020 M 5.7 26,000× the energy of this one
- Around the size people start to feel M 3.0 2.3× the energy of this one
- This earthquake M 2.8 about 420 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:
- 5.0 5 km S of Springville, California · 49 km ESE 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 36.2422, -119.3415. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Kings County, CA | 47 km (29 mi) | WSW | earthquakes near Kings County |
| Tulare County, CA | 50 km (31 mi) | E | earthquakes near Tulare County |
| Fresno County, CA | 64 km (40 mi) | NNW | earthquakes near Fresno County |
| Madera County, CA | 114 km (71 mi) | NNW | earthquakes near Madera County |
| Kern County, CA | 114 km (71 mi) | SSE | earthquakes near Kern County |
| San Luis Obispo County, CA | 138 km (86 mi) | SW | earthquakes near San Luis Obispo County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
30 earthquakes have been recorded within 50 km since this one.
- 2.3 3km ESE of Armona, CA
- 2.3 12km SE of Alpaugh, CA
- 3.0 21km ESE of Kettleman City, CA
- 2.5 2km SW of Hanford, CA
- 2.4 2km SW of Home Garden, CA
- 1.7 13km SE of Woodlake, CA
- 1.7 10km WNW of Pixley, CA
- 2.3 9km S of Riverdale, CA
- 2.1 18km WSW of Corcoran, CA
- 1.8 8km NNE of Porterville, CA
- 2.3 7km NNW of Lemoore, CA
- 3.5 18km WSW of Corcoran, CA
- 1.9 15km E of Kettleman City, CA
- 2.9 6km SSE of Lemoore, CA
- 2.6 18km WSW of Corcoran, 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.