QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

34km ENE of Ensenada, B.C., MX

· 13 km deep · released about 37 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N
Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.
When
Magnitude
M 2.1 (ml)
Depth
13 km below the surface
Felt
no reports yet
Nearest
San Diego County, 124 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2894 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 37 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 410,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 290,000× the energy of this one
  3. Around the size people start to feel M 3.0 26× the energy of this one
  4. This earthquake M 2.1 about 37 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.

Where

Epicentre 31.9913, -116.2868. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
San Diego County, CA 124 km (77 mi) SSE of here earthquakes near San Diego County
Imperial County, CA 146 km (91 mi) SW of here earthquakes near Imperial County

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

53 earthquakes have been recorded within 50 km since this one.

  1. 2.5 46km ESE of Maneadero, B.C., MX
  2. 2.0 46km ENE of Maneadero, B.C., MX
  3. 2.4 7km ENE of El Sauzal, B.C., MX
  4. 2.1 34km ENE of Maneadero, B.C., MX
  5. 1.7 42km ENE of Ensenada, B.C., MX
  6. 2.7 24km ESE of Primo Tapia, B.C., MX
  7. 1.9 36km E of Ensenada, B.C., MX
  8. 3.1 62km E of Maneadero, B.C., MX
  9. 1.6 36km NE of Ensenada, B.C., MX
  10. 2.0 69km WSW of Alberto Oviedo Mota, B.C., MX
  11. 2.4 69km WSW of Alberto Oviedo Mota, B.C., MX
  12. 1.7 37km E of Ensenada, B.C., MX
  13. 2.3 36km NE of Ensenada, B.C., MX
  14. 3.4 72km E of Maneadero, B.C., MX
  15. 1.8 36km 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.2 on 2018-07-25 — it released about 1,600 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.