QuakeIndex

Earthquake · reviewed by a seismologist

M 4.0md

56 km SE of Punta Cana, Dominican Republic

· 107 km deep · released about 15 tons of TNT

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10 km30 km60 km120 km N Mayagüez Municipio 24 kmRincón Municipio 77 kmAguada Municipio 85 kmAñasco Municipio 90 kmCabo Rojo Municipio 90 kmAguadilla Municipio 91 kmHormigueros Municipio 93 kmMoca Municipio 96 kmSan Germán Municipio 101 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 4.0 (md)
Depth
107 km below the surface
Felt
no reports yet
Nearest
Mayagüez Municipio, 24 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1545 days ago

This was a light earthquake. It is usually felt clearly nearby and can rattle windows and dishes, but damage is uncommon.

How big was it?

This earthquake released about 15 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 5.0 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 11,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 500× the energy of this one
  3. Magna, Utah 2020 M 5.7 350× the energy of this one
  4. This earthquake M 4.0 about 15 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 32× 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 18.2758, -67.9808. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mayagüez Municipio, PR 24 km (15 mi) NNW of here earthquakes near Mayagüez Municipio
Rincón Municipio, PR 77 km (48 mi) W of here earthquakes near Rincón Municipio
Aguada Municipio, PR 85 km (53 mi) W of here earthquakes near Aguada Municipio
Añasco Municipio, PR 90 km (56 mi) W of here earthquakes near Añasco Municipio
Cabo Rojo Municipio, PR 90 km (56 mi) WNW of here earthquakes near Cabo Rojo Municipio
Aguadilla Municipio, PR 91 km (57 mi) WSW of here earthquakes near Aguadilla Municipio

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

Aftershocks so far

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

  1. 3.2 44 km W of Rincón, Puerto Rico
  2. 3.7 55 km SSE of Punta Cana, Dominican Republic
  3. 4.0 59 km E of Punta Cana, Dominican Republic
  4. 3.3 48 km SE of Boca de Yuma, Dominican Republic
  5. 3.8 60 km SE of Punta Cana, Dominican Republic
  6. 3.2 37 km WNW of Rincón, Puerto Rico
  7. 3.4 66 km WSW of Stella, Puerto Rico
  8. 3.2 Mona Passage
  9. 3.0 28 km W of Rincón, Puerto Rico
  10. 3.3 41 km SE of Boca de Yuma, Dominican Republic
  11. 3.2 42 km WSW of Stella, Puerto Rico
  12. 3.3 25 km ESE of Punta Cana, Dominican Republic
  13. 3.7 25 km SE of Boca de Yuma, Dominican Republic
  14. 3.3 53 km WSW of Stella, Puerto Rico
  15. 3.4 Mona Passage

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 4.5 on 2021-10-14 — it released about 4.7 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.