51 km SSE of La Placita de Morelos, Mexico

This was a light earthquake. It is usually felt clearly nearby and can rattle windows and dishes, but damage is uncommon. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 85 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 5.5 would have released about 32 times as much.

1. Northridge, California 1994 M 6.7 2,000× the energy of this one
2. Mineral, Virginia 2011 M 5.8 89× the energy of this one
3. Magna, Utah 2020 M 5.7 63× the energy of this one
4. This earthquake M 4.5 about 85 tons of TNT
5. Around the size people start to feel M 3.0 this one released 180× 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 4.7 on 2016-04-26 — about 2 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 18.1047, -103.3907. Map © OpenStreetMap contributors.

Aftershocks so far

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

1. 4.3 72 km WSW of El Habillal, Mexico 17:05 UTC
2. 4.4 19 km SE of Aquila, Mexico 10:53 UTC
3. 4.9 12 km SSE of Aquila, Mexico 10:46 UTC
4. 4.8 21 km ESE of Aquila, Mexico 09:18 UTC
5. 6.2 18 km SE of Aquila, Mexico 08:32 UTC
6. 4.0 56 km SE of La Placita de Morelos, Mexico 02:28 UTC
7. 4.2 95 km SSE of La Placita de Morelos, Mexico 22:12 UTC
8. 4.2 77 km W of El Habillal, Mexico 18:05 UTC
9. 4.0 60 km SSE of La Placita de Morelos, Mexico 09:22 UTC
10. 4.5 42 km S of La Placita de Morelos, Mexico 01:00 UTC
11. 4.4 Colima-Michoacan border region, Mexico 00:58 UTC
12. 4.7 41 km SE of La Placita de Morelos, Mexico 15:35 UTC
13. 4.1 74 km SSE of La Placita de Morelos, Mexico 16:34 UTC
14. 4.1 32 km SSE of La Placita de Morelos, Mexico 15:47 UTC
15. 4.4 Michoacan, Mexico 09:43 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 14:08 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.