10km NNE of Delta, 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 1.7 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 99,000× the energy of this one
2. Mineral, Virginia 2011 M 5.8 4,400× the energy of this one
3. Magna, Utah 2020 M 5.7 3,100× the energy of this one
4. This earthquake M 3.4 about 1.7 tons of TNT
5. Around the size people start to feel M 3.0 this one released 3.6× 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 32.4385, -115.1648. Map © OpenStreetMap contributors.

Nearby places

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

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

1. 2.1 9km SSW of Progreso, B.C., MX 08:11 UTC
2. 2.2 10km SSW of Progreso, B.C., MX 04:05 UTC
3. 1.8 8km SSW of Holtville, CA 03:25 UTC
4. 1.7 8km SSW of Holtville, CA 22:07 UTC
5. 1.5 7km SSW of Holtville, CA 10:32 UTC
6. 1.6 14km SE of Puebla, B.C., MX 08:45 UTC
7. 2.1 6km NNW of Delta, B.C., MX 11:29 UTC
8. 2.1 8km NNW of Delta, B.C., MX 09:00 UTC
9. 1.8 8km W of Holtville, CA 05:11 UTC
10. 1.7 8km W of Holtville, CA 05:08 UTC
11. 1.9 8km W of Holtville, CA 05:05 UTC
12. 1.9 5km SSW of Holtville, CA 05:05 UTC
13. 2.1 18km W of Delta, B.C., MX 10:25 UTC
14. 2.0 19km W of Delta, B.C., MX 16:32 UTC
15. 2.2 9km NNE of Delta, B.C., MX 07:49 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 17:23 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 4.8 on 2018-11-19 — it released about 150 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.