103 km SW of Barra de Navidad, 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 340 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 5.9 would have released about 32 times as much.

1. Northridge, California 1994 M 6.7 500× the energy of this one
2. Mineral, Virginia 2011 M 5.8 22× the energy of this one
3. Magna, Utah 2020 M 5.7 16× the energy of this one
4. This earthquake M 4.9 about 340 tons of TNT
5. Around the size people start to feel M 3.0 this one released 710× 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 5.6 on 2016-05-07 — about 11 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 18.4813, -105.3000. Map © OpenStreetMap contributors.

Aftershocks so far

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

1. 5.4 142 km SSW of Emiliano Zapata, Mexico 19:05 UTC
2. 4.6 144 km SW of La Manzanilla, Mexico 16:41 UTC
3. 4.5 145 km SSW of Emiliano Zapata, Mexico 16:34 UTC
4. 4.3 141 km SSW of Emiliano Zapata, Mexico 05:42 UTC
5. 4.6 126 km SSW of Emiliano Zapata, Mexico 00:53 UTC
6. 4.4 149 km SW of Barra de Navidad, Mexico 10:36 UTC
7. 4.2 132 km SSW of Barra de Navidad, Mexico 05:43 UTC
8. 4.2 147 km SW of Barra de Navidad, Mexico 16:43 UTC
9. 5.6 101 km SW of Barra de Navidad, Mexico 15:21 UTC
10. 4.1 94 km SW of Emiliano Zapata, Mexico 09:08 UTC
11. 4.4 131 km SW of Barra de Navidad, Mexico 16:12 UTC
12. 4.4 89 km SSW of Emiliano Zapata, Mexico 02:10 UTC
13. 4.5 117 km SSW of Barra de Navidad, Mexico 09:55 UTC
14. 4.1 108 km SSW of Barra de Navidad, Mexico 07:08 UTC
15. 4.6 144 km SSW of Barra de Navidad, Mexico 11:07 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 11:26 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.