186 km SSW of Emiliano Zapata, Mexico

This was a light earthquake. It is usually felt clearly nearby and can rattle windows and dishes, but damage is uncommon.

How big was it?

This earthquake released about 60 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 5.4 would have released about 32 times as much.

1. Northridge, California 1994 M 6.7 2,800× the energy of this one
2. Mineral, Virginia 2011 M 5.8 130× the energy of this one
3. Magna, Utah 2020 M 5.7 89× the energy of this one
4. This earthquake M 4.4 about 60 tons of TNT
5. Around the size people start to feel M 3.0 this one released 130× 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 5.8 on 2016-06-02 — about 130 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 17.9604, -105.9129. Map © OpenStreetMap contributors.

Aftershocks so far

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

1. 4.3 201 km SW of Emiliano Zapata, Mexico 10:36 UTC
2. 4.3 153 km SSW of Emiliano Zapata, Mexico 10:52 UTC
3. 5.3 175 km SW of Emiliano Zapata, Mexico 10:21 UTC
4. 5.7 183 km SSW of Emiliano Zapata, Mexico 10:16 UTC
5. 5.4 142 km SSW of Emiliano Zapata, Mexico 19:05 UTC
6. 4.6 144 km SW of La Manzanilla, Mexico 16:41 UTC
7. 4.5 145 km SSW of Emiliano Zapata, Mexico 16:34 UTC
8. 4.2 163 km SSW of Emiliano Zapata, Mexico 08:56 UTC
9. 4.2 151 km SW of Emiliano Zapata, Mexico 05:53 UTC
10. 4.3 141 km SSW of Emiliano Zapata, Mexico 05:42 UTC
11. 4.2 171 km SW of Emiliano Zapata, Mexico 10:28 UTC
12. 4.4 149 km SW of Barra de Navidad, Mexico 10:36 UTC
13. 5.6 173 km SW of La Manzanilla, Mexico 10:13 UTC
14. 4.6 181 km SW of La Manzanilla, Mexico 10:03 UTC
15. 4.4 218 km SW of Emiliano Zapata, Mexico 02:08 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 14:35 UTC. 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.