72km ENE of Maneadero, B.C., MX

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 2 people have reported feeling it to USGS.

How big was it?

This earthquake released about 1,200 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.1 would have released about 32 times as much.

1. Northridge, California 1994 M 6.7 280,000× the energy of this one
2. Mineral, Virginia 2011 M 5.8 12,000× the energy of this one
3. Magna, Utah 2020 M 5.7 8,800× the energy of this one
4. This earthquake M 3.1 about 1,200 lb of TNT
5. Around the size people start to feel M 3.0 this one released 1.3× 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.

Where

Epicentre 31.9002, -115.8408. Map © OpenStreetMap contributors.

Aftershocks so far

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

1. 2.2 69km WSW of Alberto Oviedo Mota, B.C., MX 19:14 UTC
2. 2.1 70km ENE of Maneadero, B.C., MX 15:54 UTC
3. 2.5 54km E of Maneadero, B.C., MX 01:13 UTC
4. 2.6 71km WSW of Alberto Oviedo Mota, B.C., MX 22:41 UTC
5. 2.3 64km SW of Alberto Oviedo Mota, B.C., MX 15:57 UTC
6. 2.6 64km WSW of Alberto Oviedo Mota, B.C., MX 23:45 UTC
7. 2.0 47km ENE of Ensenada, B.C., MX 22:53 UTC
8. 1.9 52km SSW of Progreso, B.C., MX 06:39 UTC
9. 2.3 51km SSW of Progreso, B.C., MX 02:15 UTC
10. 2.7 70km WSW of Alberto Oviedo Mota, B.C., MX 19:43 UTC
11. 1.8 34km ENE of Ensenada, B.C., MX 00:19 UTC
12. 2.3 41km ENE of Maneadero, B.C., MX 05:29 UTC
13. 2.3 70km WSW of Alberto Oviedo Mota, B.C., MX 08:53 UTC
14. 2.9 70km WSW of Alberto Oviedo Mota, B.C., MX 20:07 UTC
15. 2.5 71km WSW of Alberto Oviedo Mota, B.C., MX 19:07 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 15:25 UTC. 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 48 times the energy of this one.

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

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.