78 km NE of Miches, Dominican Republic

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

How big was it?

This earthquake released about 720 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 21,000× the energy of this one
2. Magna, Utah 2020 M 5.7 15,000× the energy of this one
3. Around the size people start to feel M 3.0 1.3× the energy of this one
4. This earthquake M 2.9 about 720 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.

Where

Epicentre 19.4183, -68.4611. Map © OpenStreetMap contributors.

Aftershocks so far

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

1. 3.0 Dominican Republic region 00:06 UTC
2. 3.0 74 km NNE of Punta Cana, Dominican Republic 07:08 UTC
3. 2.8 77 km NNE of Otra Banda, Dominican Republic 07:55 UTC
4. 3.2 69 km NNE of Punta Cana, Dominican Republic 17:23 UTC
5. 3.0 78 km NNE of Punta Cana, Dominican Republic 06:01 UTC
6. 2.3 70 km NE of Samaná, Dominican Republic 02:58 UTC
7. 3.2 75 km NNE of Punta Cana, Dominican Republic 08:47 UTC
8. 3.4 43 km NNE of Otra Banda, Dominican Republic 14:55 UTC
9. 3.4 91 km NNE of Miches, Dominican Republic 07:58 UTC
10. 3.3 37 km NE of Miches, Dominican Republic 02:16 UTC
11. 3.3 56 km N of Punta Cana, Dominican Republic 02:26 UTC
12. 3.1 34 km NE of Miches, Dominican Republic 09:03 UTC
13. 2.6 111 km NE of Miches, Dominican Republic 01:22 UTC
14. 2.7 111 km NNE of Punta Cana, Dominican Republic 01:14 UTC
15. 3.4 110 km NNE of Punta Cana, Dominican Republic 23:07 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 21:36 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 4.7 on 2018-12-07 — it released about 420 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.