QuakeIndex

Earthquake · reviewed by a seismologist

M 3.1md

63 km SE of Boca de Yuma, Dominican Republic

· 82 km deep · released about 1,500 lb of TNT

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10 km30 km60 km120 km N Mayagüez Municipio 30 kmRincón Municipio 103 kmCabo Rojo Municipio 103 kmAguada Municipio 111 kmHormigueros Municipio 111 kmAñasco Municipio 113 kmLajas Municipio 118 kmSan Germán Municipio 119 kmAguadilla Municipio 119 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
82 km below the surface
Felt
no reports yet
Nearest
Mayagüez Municipio, 30 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 451 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 1,500 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 6.7 230,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 10,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 7,200× the energy of this one
  4. This earthquake M 3.1 about 1,500 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 1.6× 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 18.0008, -68.1558. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mayagüez Municipio, PR 30 km (19 mi) WSW of here earthquakes near Mayagüez Municipio
Rincón Municipio, PR 103 km (64 mi) WSW of here earthquakes near Rincón Municipio
Cabo Rojo Municipio, PR 103 km (64 mi) W of here earthquakes near Cabo Rojo Municipio
Aguada Municipio, PR 111 km (69 mi) WSW of here earthquakes near Aguada Municipio
Hormigueros Municipio, PR 111 km (69 mi) W of here earthquakes near Hormigueros Municipio
Añasco Municipio, PR 113 km (70 mi) WSW of here earthquakes near Añasco Municipio

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

Aftershocks so far

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

  1. 3.3 54 km SSE of Boca de Yuma, Dominican Republic
  2. 3.4 46 km SE of Boca de Yuma, Dominican Republic
  3. 3.1 37 km SSE of Boca de Yuma, Dominican Republic
  4. 3.8 22 km SE of Boca de Yuma, Dominican Republic
  5. 3.4 48 km SSE of Boca de Yuma, Dominican Republic
  6. 3.3 51 km SSE of Boca de Yuma, Dominican Republic
  7. 3.2 75 km SE of Boca de Yuma, Dominican Republic
  8. 3.7 57 km ESE of Punta Cana, Dominican Republic
  9. 3.3 65 km SE of Boca de Yuma, Dominican Republic
  10. 3.4 37 km S of Boca de Yuma, Dominican Republic
  11. 3.3 68 km WSW of Stella, Puerto Rico
  12. 3.7 38 km SE of Boca de Yuma, Dominican Republic
  13. 3.4 62 km S of Boca de Yuma, Dominican Republic
  14. 2.9 48 km SSE of Boca de Yuma, Dominican Republic
  15. 3.6 47 km SSE of Boca de Yuma, 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 5.3 on 2019-02-04 — it released about 1,800 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.