QuakeIndex

Earthquake · reviewed by a seismologist

M 3.1md

32 km SE of Punta Cana, Dominican Republic

· 157 km deep · released about 1,600 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Mayagüez Municipio 45 kmRincón Municipio 99 kmAguada Municipio 105 kmAguadilla Municipio 111 kmAñasco Municipio 112 kmCabo Rojo Municipio 114 kmHormigueros Municipio 116 kmMoca Municipio 117 km
Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.
When
Magnitude
M 3.1 (md)
Depth
157 km below the surface
Felt
no reports yet
Nearest
Mayagüez Municipio, 45 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2451 days ago

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 1,600 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.2 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 210,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 9,400× the energy of this one
  3. Magna, Utah 2020 M 5.7 6,700× the energy of this one
  4. This earthquake M 3.1 about 1,600 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 1.7× 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 18.3761, -68.1855. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mayagüez Municipio, PR 45 km (28 mi) NW of here earthquakes near Mayagüez Municipio
Rincón Municipio, PR 99 km (61 mi) W of here earthquakes near Rincón Municipio
Aguada Municipio, PR 105 km (66 mi) W of here earthquakes near Aguada Municipio
Aguadilla Municipio, PR 111 km (69 mi) W of here earthquakes near Aguadilla Municipio
Añasco Municipio, PR 112 km (69 mi) W of here earthquakes near Añasco Municipio
Cabo Rojo Municipio, PR 114 km (71 mi) WNW of here earthquakes near Cabo Rojo Municipio

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

Aftershocks so far

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

  1. 2.9 64 km WSW of Stella, Puerto Rico
  2. 2.6 45 km ESE of Punta Cana, Dominican Republic
  3. 3.1 24 km SSE of Boca de Yuma, Dominican Republic
  4. 3.4 24 km ENE of Punta Cana, Dominican Republic
  5. 3.3 37 km SE of Punta Cana, Dominican Republic
  6. 3.5 10 km N of Punta Cana, Dominican Republic
  7. 3.7 37 km SE of Punta Cana, Dominican Republic
  8. 2.7 37 km ENE of Punta Cana, Dominican Republic
  9. 2.6 68 km SE of Boca de Yuma, Dominican Republic
  10. 3.2 55 km W of Rincón, Puerto Rico
  11. 2.8 26 km SSE of Punta Cana, Dominican Republic
  12. 3.6 17 km SSE of Boca de Yuma, Dominican Republic
  13. 2.9 14 km ESE of Boca de Yuma, Dominican Republic
  14. 2.9 34 km SE of Boca de Yuma, Dominican Republic
  15. 3.1 8 km WSW of Punta Cana, Dominican Republic

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of . 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 5.3 on 2019-02-04 — it released about 1,700 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.