QuakeIndex

Earthquake · reviewed by a seismologist

M 3.1md

57 km E of Punta Cana, Dominican Republic

· 90 km deep · released about 1,300 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Mayagüez Municipio 60 kmRincón Municipio 72 kmAguada Municipio 76 kmAguadilla Municipio 77 kmAñasco Municipio 85 kmMoca Municipio 87 kmIsabela Municipio 91 kmHormigueros Municipio 95 kmSan Sebastián Municipio 99 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
90 km below the surface
Felt
no reports yet
Nearest
Mayagüez Municipio, 60 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2903 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 1,300 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.1 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 250,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 11,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 7,900× the energy of this one
  4. This earthquake M 3.1 about 1,300 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 1.4× 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 18.6218, -67.8601. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mayagüez Municipio, PR 60 km (37 mi) N of here earthquakes near Mayagüez Municipio
Rincón Municipio, PR 72 km (44 mi) WNW of here earthquakes near Rincón Municipio
Aguada Municipio, PR 76 km (47 mi) WNW of here earthquakes near Aguada Municipio
Aguadilla Municipio, PR 77 km (48 mi) WNW of here earthquakes near Aguadilla Municipio
Añasco Municipio, PR 85 km (53 mi) WNW of here earthquakes near Añasco Municipio
Moca Municipio, PR 87 km (54 mi) WNW of here earthquakes near Moca Municipio

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

Aftershocks so far

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

  1. 2.7 44 km NW of Aguadilla, Puerto Rico
  2. 2.7 70 km NW of San Antonio, Puerto Rico
  3. 2.8 61 km SE of Punta Cana, Dominican Republic
  4. 3.3 61 km NW of Rincón, Puerto Rico
  5. 2.4 38 km NW of Rincón, Puerto Rico
  6. 3.3 62 km W of Rincón, Puerto Rico
  7. 2.7 74 km NW of San Antonio, Puerto Rico
  8. 2.4 75 km NE of Punta Cana, Dominican Republic
  9. 2.3 70 km NE of Punta Cana, Dominican Republic
  10. 2.7 51 km ENE of Punta Cana, Dominican Republic
  11. 2.1 35 km WNW of Rincón, Puerto Rico
  12. 2.5 23 km WNW of Rincón, Puerto Rico
  13. 2.3 53 km WSW of Stella, Puerto Rico
  14. 3.0 53 km ENE of Punta Cana, Dominican Republic
  15. 2.5 50 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 4.4 on 2017-10-01 — it released about 89 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.