Earthquake · reviewed by a seismologist
M 1.8ml
30km ENE of Ensenada, B.C., MX
Yes. A magnitude 1.8 earthquake was recorded 30km ENE of Ensenada, B.C., MX, at 12:29 am PST on 31 January 2020 (08:29 UTC), 9.6 km deep.
- When
- Magnitude
- M 1.8 (ml)
- Depth
- 9.6 km below the surface
- Felt
- no reports yet
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2477 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 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 9 km (6 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 13 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 1,200,000× the energy of this one
- Magna, Utah 2020 M 5.7 840,000× the energy of this one
- Around the size people start to feel M 3.0 75× the energy of this one
- This earthquake M 1.8 about 13 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 4,600 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 31.9310, -116.3057. Map © OpenStreetMap contributors.
Aftershocks so far
55 earthquakes have been recorded within 50 km since this one.
- 1.8 28km ENE of Ensenada, B.C., MX
- 2.1 59km E of Maneadero, B.C., MX
- 1.8 44km ENE of Ensenada, B.C., MX
- 2.0 32km NE of Ensenada, B.C., MX
- 1.9 37km NE of Ensenada, B.C., MX
- 1.8 33km ENE of Maneadero, B.C., MX
- 1.9 35km NNE of Ensenada, B.C., MX
- 2.1 24km NNE of Ensenada, B.C., MX
- 2.8 47km ENE of Ensenada, B.C., MX
- 3.4 55km ESE of Maneadero, B.C., MX
- 1.6 25km ESE of Primo Tapia, B.C., MX
- 2.1 12km NW of El Sauzal, B.C., MX
- 2.5 13km SSE of Maneadero, B.C., MX
- 2.9 15km WNW of El Sauzal, B.C., MX
- 2.5 34km E 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.