QuakeIndex

Earthquake · reviewed by a seismologist

M 3.4md

59 km NE of Punta Cana, Dominican Republic

· 71 km deep · released about 2 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Mayagüez Municipio 97 kmAguadilla Municipio 103 kmRincón Municipio 103 kmAguada Municipio 106 kmMoca Municipio 115 kmIsabela Municipio 115 kmAñasco 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 3.4 (md)
Depth
71 km below the surface
Felt
no reports yet
Nearest
Mayagüez Municipio, 97 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2248 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 2 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 83,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 3,700× the energy of this one
  3. Magna, Utah 2020 M 5.7 2,600× the energy of this one
  4. This earthquake M 3.4 about 2 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 4.3× 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 18.9493, -67.9896. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mayagüez Municipio, PR 97 km (60 mi) N of here earthquakes near Mayagüez Municipio
Aguadilla Municipio, PR 103 km (64 mi) WNW of here earthquakes near Aguadilla Municipio
Rincón Municipio, PR 103 km (64 mi) NW of here earthquakes near Rincón Municipio
Aguada Municipio, PR 106 km (66 mi) NW of here earthquakes near Aguada Municipio
Moca Municipio, PR 115 km (71 mi) WNW of here earthquakes near Moca Municipio
Isabela Municipio, PR 115 km (71 mi) WNW of here earthquakes near Isabela Municipio

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

Aftershocks so far

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

  1. 3.4 77 km NW of San Antonio, Puerto Rico
  2. 3.3 79 km NW of San Antonio, Puerto Rico
  3. 3.2 96 km NE of Punta Cana, Dominican Republic
  4. 3.4 86 km NW of San Antonio, Puerto Rico
  5. 3.1 100 km NE of Punta Cana, Dominican Republic
  6. 3.3 75 km NE of Punta Cana, Dominican Republic
  7. 3.5 82 km NW of San Antonio, Puerto Rico
  8. 3.7 84 km ENE of Punta Cana, Dominican Republic
  9. 3.6 98 km NE of Punta Cana, Dominican Republic
  10. 2.6 85 km NW of San Antonio, Puerto Rico
  11. 3.3 85 km NW of San Antonio, Puerto Rico
  12. 3.6 81 km NE of Punta Cana, Dominican Republic
  13. 3.3 76 km NW of San Antonio, Puerto Rico
  14. 3.0 81 km NE of Punta Cana, Dominican Republic
  15. 2.7 87 km NW of San Antonio, Puerto Rico

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 4.6 on 2020-01-29 — it released about 59 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.