QuakeIndex

Earthquake · reviewed by a seismologist

M 4.1md

11 km SSW of Boca de Yuma, Dominican Republic

· 164 km deep · released about 19 tons of TNT

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10 km30 km60 km120 km N Mayagüez Municipio 85 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 4.1 (md)
Depth
164 km below the surface
Felt
no reports yet
Nearest
Mayagüez Municipio, 85 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 401 days ago

This was a light earthquake. It is usually felt clearly nearby and can rattle windows and dishes, but damage is uncommon.

How big was it?

This earthquake released about 19 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 5.1 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 9,100× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 410× the energy of this one
  3. Magna, Utah 2020 M 5.7 290× the energy of this one
  4. This earthquake M 4.1 about 19 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 39× 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 18.2850, -68.6663. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mayagüez Municipio, PR 85 km (53 mi) WNW of here earthquakes near Mayagüez Municipio

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

Aftershocks so far

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

  1. 3.8 22 km SE of Boca de Yuma, Dominican Republic
  2. 3.8 4 km ENE of Guaymate, Dominican Republic
  3. 3.4 48 km SSE of Boca de Yuma, Dominican Republic
  4. 3.7 2 km SSE of Guaymate, Dominican Republic
  5. 3.3 51 km SSE of Boca de Yuma, Dominican Republic
  6. 3.8 10 km NE of La Romana, Dominican Republic
  7. 3.9 17 km SE of La Romana, Dominican Republic
  8. 3.4 37 km S of Boca de Yuma, Dominican Republic
  9. 3.7 38 km SE of Boca de Yuma, Dominican Republic
  10. 2.9 48 km SSE of Boca de Yuma, Dominican Republic
  11. 3.6 47 km SSE of Boca de Yuma, Dominican Republic
  12. 3.4 48 km S of La Romana, Dominican Republic
  13. 3.9 11 km ENE of La Romana, Dominican Republic
  14. 3.3 6 km SE of La Romana, Dominican Republic
  15. 3.2 10 km ENE of La Romana, 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 72 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.