QuakeIndex

Earthquake · reviewed by a seismologist

M 3.8md

38 km ESE of Punta Cana, Dominican Republic

· 97 km deep · released about 8.7 tons of TNT

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10 km30 km60 km120 km N Mayagüez Municipio 46 kmRincón Municipio 87 kmAguada Municipio 93 kmAguadilla Municipio 97 kmAñasco Municipio 100 kmMoca Municipio 104 kmHormigueros Municipio 106 kmCabo Rojo Municipio 106 kmIsabela Municipio 110 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 3.8 (md)
Depth
97 km below the surface
Felt
no reports yet
Nearest
Mayagüez Municipio, 46 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1202 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 8.7 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.8 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 19,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 870× the energy of this one
  3. Magna, Utah 2020 M 5.7 620× the energy of this one
  4. This earthquake M 3.8 about 8.7 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 18× 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 18.4633, -68.0603. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mayagüez Municipio, PR 46 km (29 mi) NNW of here earthquakes near Mayagüez Municipio
Rincón Municipio, PR 87 km (54 mi) W of here earthquakes near Rincón Municipio
Aguada Municipio, PR 93 km (58 mi) W of here earthquakes near Aguada Municipio
Aguadilla Municipio, PR 97 km (60 mi) W of here earthquakes near Aguadilla Municipio
Añasco Municipio, PR 100 km (62 mi) WNW of here earthquakes near Añasco Municipio
Moca Municipio, PR 104 km (65 mi) W of here earthquakes near Moca Municipio

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

Aftershocks so far

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

  1. 3.4 43 km NE of Punta Cana, Dominican Republic
  2. 3.4 54 km SE of Punta Cana, Dominican Republic
  3. 3.9 44 km ESE of Punta Cana, Dominican Republic
  4. 3.5 22 km SSE of Punta Cana, Dominican Republic
  5. 3.7 32 km SE of Boca de Yuma, Dominican Republic
  6. 3.6 50 km ESE of Boca de Yuma, Dominican Republic
  7. 3.4 62 km W of Rincón, Puerto Rico
  8. 3.3 Mona Passage
  9. 3.4 51 km W of Rincón, Puerto Rico
  10. 3.2 47 km WSW of Stella, Puerto Rico
  11. 3.2 48 km WSW of Stella, Puerto Rico
  12. 3.8 47 km ESE of Boca de Yuma, Dominican Republic
  13. 4.0 59 km SE of Boca de Yuma, Dominican Republic
  14. 3.8 18 km SE of Boca de Yuma, Dominican Republic
  15. 3.9 18 km E 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 4.5 on 2021-10-14 — it released about 8.2 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.