Earthquake · reviewed by a seismologist
M 4.3mw
7km W of El Sauzal, B.C., MX
Yes. A magnitude 4.3 earthquake was recorded 7km W of El Sauzal, B.C., MX, at 4:21 am PDT on 25 July 2022 (11:21 UTC), 17 km deep. 624 people have reported feeling it to USGS.
- When
- Magnitude
- M 4.3 (mw)
- Depth
- 17 km below the surface
- Felt
- 624 reports · strongest reported intensity IV
- Measured shaking
- intensity IV (ShakeMap)
- USGS impact alert
- green
- Tsunami
- USGS flagged this event for tsunami evaluation. Follow tsunami.gov for official messages.
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 1504 days ago
Earthquake alerts for Imperial Beach, CA
Get a notification in this browser when USGS records an earthquake near Imperial Beach, 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 light earthquake. It is usually felt clearly nearby and can rattle windows and dishes, but damage is uncommon.
At this magnitude and depth, people at rest would likely notice it out to about 119 km (74 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 41 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 5.3 would have released about 32 times as much.
- Northridge, California 1994 M 6.7 4,100× the energy of this one
- Mineral, Virginia 2011 M 5.8 180× the energy of this one
- Magna, Utah 2020 M 5.7 130× the energy of this one
- This earthquake M 4.3 about 41 tons of TNT
- Around the size people start to feel M 3.0 this one released 86× more
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 4.5 on 2022-04-15 — about 2.3 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 31.9075, -116.7617. Map © OpenStreetMap contributors.
Aftershocks so far
53 earthquakes have been recorded within 50 km since this one.
- 2.1 36 km ENE of Ensenada, B.C., MX
- 1.5 44 km S of Campo, CA
- 2.6 32 km E of Primo Tapia, B.C., MX
- 2.3 36 km ENE of Ensenada, B.C., MX
- 2.1 19 km NNE of El Sauzal, B.C., MX
- 1.7 9 km W of Primo Tapia, B.C., MX
- 3.2 48 km SW of Primo Tapia, B.C., MX
- 2.0 11 km NE of El Sauzal, B.C., MX
- 1.9 25 km WSW of El Sauzal, B.C., MX
- 2.2 30 km NNE of Ensenada, B.C., MX
- 1.6 33 km ENE of Ensenada, B.C., MX
- 2.0 36 km ENE of Ensenada, B.C., MX
- 1.8 20 km WSW of Primo Tapia, B.C., MX
- 1.8 18 km WSW of Primo Tapia, B.C., MX
- 2.2 28km NE of Ensenada, 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.