51km E 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 2 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.4 would have released about 32 times as much.

1. Northridge, California 1994 M 6.7 86,000× the energy of this one
2. Mineral, Virginia 2011 M 5.8 3,800× the energy of this one
3. Magna, Utah 2020 M 5.7 2,700× the energy of this one
4. This earthquake M 3.4 about 2 tons of TNT
5. Around the size people start to feel M 3.0 this one released 4.1× 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 31.6603, -116.0352. Map © OpenStreetMap contributors.

Aftershocks so far

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

1. 2.4 67km SW of Alberto Oviedo Mota, B.C., MX 04:36 UTC
2. 2.7 76km ESE of Maneadero, B.C., MX 19:17 UTC
3. 3.8 40km ENE of Maneadero, B.C., MX 15:26 UTC
4. 3.0 91km SSW of Alberto Oviedo Mota, B.C., MX 02:33 UTC
5. 3.2 91km ESE of Maneadero, B.C., MX 02:26 UTC
6. 2.1 44km ENE of Ensenada, B.C., MX 19:51 UTC
7. 1.8 44km ENE of Ensenada, B.C., MX 19:42 UTC
8. 1.9 64km SW of Alberto Oviedo Mota, B.C., MX 14:41 UTC
9. 2.5 53 km ENE of San Vicente, Mexico 07:16 UTC
10. 2.8 67km SW of Alberto Oviedo Mota, B.C., MX 11:33 UTC
11. 3.8 60km E of Maneadero, B.C., MX 05:38 UTC
12. 2.3 62km E of Maneadero, B.C., MX 13:47 UTC
13. 3.1 80km ESE of Maneadero, B.C., MX 06:58 UTC
14. 3.4 40km ENE of Maneadero, B.C., MX 09:13 UTC
15. 3.0 40km ENE of Maneadero, B.C., MX 08:53 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 12:52 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 5.1 on 2020-08-17 — it released about 370 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.