QuakeIndex

Earthquake · reviewed by a seismologist

M 3.4md

69 km ENE of Punta Cana, Dominican Republic

· 109 km deep · released about 1.8 tons of TNT

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10 km30 km60 km120 km N Rincón Municipio 72 kmAguadilla Municipio 73 kmAguada Municipio 75 kmMayagüez Municipio 76 kmMoca Municipio 85 kmAñasco Municipio 86 kmIsabela Municipio 86 kmQuebradillas Municipio 95 kmSan Sebastián Municipio 97 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 3.4 (md)
Depth
109 km below the surface
Felt
no reports yet
Nearest
Rincón Municipio, 72 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2952 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 1.8 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.4 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 95,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 4,300× the energy of this one
  3. Magna, Utah 2020 M 5.7 3,000× the energy of this one
  4. This earthquake M 3.4 about 1.8 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 3.7× 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 18.7563, -67.7761. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Rincón Municipio, PR 72 km (45 mi) NW of here earthquakes near Rincón Municipio
Aguadilla Municipio, PR 73 km (46 mi) WNW of here earthquakes near Aguadilla Municipio
Aguada Municipio, PR 75 km (47 mi) NW of here earthquakes near Aguada Municipio
Mayagüez Municipio, PR 76 km (47 mi) N of here earthquakes near Mayagüez Municipio
Moca Municipio, PR 85 km (53 mi) WNW of here earthquakes near Moca Municipio
Añasco Municipio, PR 86 km (53 mi) NW of here earthquakes near Añasco Municipio

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

Aftershocks so far

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

  1. 2.7 42 km NNW of San Antonio, Puerto Rico
  2. 3.3 61 km NNE of Punta Cana, Dominican Republic
  3. 2.6 54 km W of Rincón, Puerto Rico
  4. 2.6 36 km NW of Rincón, Puerto Rico
  5. 2.7 40 km NNW of San Antonio, Puerto Rico
  6. 3.1 61 km WNW of Rincón, Puerto Rico
  7. 2.8 Mona Passage
  8. 2.3 31 km WNW of Rincón, Puerto Rico
  9. 3.0 34 km ESE of Punta Cana, Dominican Republic
  10. 2.3 50 km W of Rincón, Puerto Rico
  11. 2.7 46 km ENE of Punta Cana, Dominican Republic
  12. 2.6 29 km W of Rincón, Puerto Rico
  13. 2.8 45 km NW of San Antonio, Puerto Rico
  14. 2.2 52 km NW of San Antonio, Puerto Rico
  15. 2.6 58 km ESE 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 4.4 on 2017-10-01 — it released about 34 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.