40 km NE of Miches, Dominican Republic

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

At this magnitude and depth, people at rest would likely notice it out to about 32 km (20 mi) from the epicentre. Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

How big was it?

This earthquake released about 680 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.9 would have released about 32 times as much.

1. Mineral, Virginia 2011 M 5.8 22,000× the energy of this one
2. Magna, Utah 2020 M 5.7 16,000× the energy of this one
3. Around the size people start to feel M 3.0 1.4× the energy of this one
4. This earthquake M 2.9 about 680 lb of TNT

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 5.3 on 2023-12-26 — about 4,000 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 19.2465, -68.7752. Map © OpenStreetMap contributors.

Aftershocks so far

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

1. 3.0 56 km NNE of Miches, Dominican Republic 01:52 UTC
2. 3.6 46 km NE of Samaná, Dominican Republic 02:15 UTC
3. 2.7 61 km NNE of Miches, Dominican Republic 21:15 UTC
4. 3.4 54 km NNE of Otra Banda, Dominican Republic 11:41 UTC
5. 3.4 15 km NNE of Miches, Dominican Republic 15:36 UTC
6. 3.7 40 km ENE of Samaná, Dominican Republic 15:03 UTC
7. 3.4 31 km NE of Miches, Dominican Republic 01:41 UTC
8. 3.0 76 km NE of Samaná, Dominican Republic 05:46 UTC
9. 3.7 61 km ENE of Miches, Dominican Republic 07:05 UTC
10. 3.7 34 km N of Miches, Dominican Republic 09:59 UTC
11. 4.1 34 km E of Miches, Dominican Republic 07:55 UTC
12. 3.7 56 km NNE of Miches, Dominican Republic 02:06 UTC
13. 2.7 63 km NE of Miches, Dominican Republic 14:27 UTC
14. 3.2 18 km ENE of Miches, Dominican Republic 15:29 UTC
15. 2.8 87 km NE of Miches, Dominican Republic 11:58 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 20:29 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.