Earthquake · reviewed by a seismologist
M 2.8ml
40km ENE of Maneadero, B.C., MX
Yes. A magnitude 2.8 earthquake was recorded 40km ENE of Maneadero, B.C., MX, at 4:14 pm PST on 2 December 2021 (00:14 UTC), 15 km deep. 2 people have reported feeling it to USGS.
- When
- Magnitude
- M 2.8 (ml)
- Depth
- 15 km below the surface
- Felt
- 2 reports · strongest reported intensity III
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 1734 days ago
Earthquake alerts for Campo, CA
Get a notification in this browser when USGS records an earthquake near Campo, 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 24 km (15 mi) from the epicentre. 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 530 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 29,000× the energy of this one
- Magna, Utah 2020 M 5.7 20,000× the energy of this one
- Around the size people start to feel M 3.0 1.8× the energy of this one
- This earthquake M 2.8 about 530 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 in our catalogue was M 4.2 on 2018-07-25 — about 110 times the energy of this one.
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 31.8692, -116.1777. Map © OpenStreetMap contributors.
Aftershocks so far
44 earthquakes have been recorded within 50 km since this one.
- 2.3 69km ENE of Maneadero, B.C., MX
- 2.2 51km E of Ensenada, B.C., MX
- 2.2 43km ENE of Maneadero, B.C., MX
- 2.2 61km WSW of Alberto Oviedo Mota, B.C., MX
- 2.7 35km ENE of Maneadero, B.C., MX
- 2.8 34km E of Ensenada, B.C., MX
- 1.6 40km NNE of Ensenada, B.C., MX
- 2.4 57km E of Maneadero, B.C., MX
- 2.4 39km ENE of Maneadero, B.C., MX
- 1.9 44km ENE of Ensenada, B.C., MX
- 2.4 35km NE of Ensenada, B.C., MX
- 2.0 42km E of Ensenada, B.C., MX
- 2.0 34km NE of Ensenada, B.C., MX
- 2.4 67km SW of Alberto Oviedo Mota, B.C., MX
- 3.8 40km ENE of Maneadero, B.C., MX
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.