7 km NE of Ramón Santana, Dominican Republic

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 1 person has reported feeling it to USGS.

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.

Where

Epicentre 18.5931, -69.1354. Map © OpenStreetMap contributors.

Aftershocks so far

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

1. 3.2 7 km ENE of Santa Cruz de El Seibo, Dominican Republic 04:07 UTC
2. 3.8 14 km SW of Salvaleón de Higüey, Dominican Republic 05:51 UTC
3. 3.2 1 km NE of Guaymate, Dominican Republic 19:58 UTC
4. 3.1 16 km SE of Miches, Dominican Republic 07:08 UTC
5. 2.8 17 km SSE of La Romana, Dominican Republic 13:10 UTC
6. 3.4 17 km SW of Salvaleón de Higüey, Dominican Republic 18:50 UTC
7. 2.8 16 km SE of La Romana, Dominican Republic 05:32 UTC
8. 2.5 5 km WNW of Otra Banda, Dominican Republic 08:42 UTC
9. 2.7 11 km ESE of Santa Cruz de El Seibo, Dominican Republic 10:33 UTC
10. 3.4 12 km SE of Guaymate, Dominican Republic 06:30 UTC
11. 3.1 27 km S of La Romana, Dominican Republic 22:02 UTC
12. 2.6 12 km ENE of La Romana, Dominican Republic 23:58 UTC
13. 3.2 7 km NW of Otra Banda, Dominican Republic 15:06 UTC
14. 3.6 21 km NW of Salvaleón de Higüey, Dominican Republic 16:47 UTC
15. 3.1 13 km SE of La Romana, Dominican Republic 06:46 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 12:43 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 4.6 on 2016-03-20 — it released about 350 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.