QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1md

54 km SE of Punta Cana, Dominican Republic

· 8.0 km deep · released about 41 lb of TNT

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10 km30 km60 km120 km N Mayagüez Municipio 23 kmRincón Municipio 84 kmAguada Municipio 91 kmCabo Rojo Municipio 94 kmAñasco Municipio 96 kmHormigueros Municipio 98 kmAguadilla Municipio 98 kmMoca Municipio 102 kmSan Germán Municipio 107 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 2.1 (md)
Depth
8.0 km below the surface
Felt
no reports yet
Nearest
Mayagüez Municipio, 23 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2797 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 41 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 370,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 260,000× the energy of this one
  3. Around the size people start to feel M 3.0 23× the energy of this one
  4. This earthquake M 2.1 about 41 lb of TNT

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 18.2350, -68.0373. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mayagüez Municipio, PR 23 km (14 mi) NW of here earthquakes near Mayagüez Municipio
Rincón Municipio, PR 84 km (52 mi) W of here earthquakes near Rincón Municipio
Aguada Municipio, PR 91 km (57 mi) W of here earthquakes near Aguada Municipio
Cabo Rojo Municipio, PR 94 km (59 mi) WNW of here earthquakes near Cabo Rojo Municipio
Añasco Municipio, PR 96 km (60 mi) W of here earthquakes near Añasco Municipio
Hormigueros Municipio, PR 98 km (61 mi) W of here earthquakes near Hormigueros 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. 3.0 53 km W of Stella, Puerto Rico
  2. 3.2 40 km SE of Punta Cana, Dominican Republic
  3. 3.0 17 km S of Punta Cana, Dominican Republic
  4. 3.3 50 km SE of Boca de Yuma, Dominican Republic
  5. 3.1 52 km SE of Boca de Yuma, Dominican Republic
  6. 2.7 54 km ESE of Punta Cana, Dominican Republic
  7. 2.9 38 km ESE of Punta Cana, Dominican Republic
  8. 2.7 41 km WNW of Rincón, Puerto Rico
  9. 2.6 27 km SE of Boca de Yuma, Dominican Republic
  10. 2.9 63 km SE of Punta Cana, Dominican Republic
  11. 3.3 31 km SE of Punta Cana, Dominican Republic
  12. 2.9 59 km SE of Punta Cana, Dominican Republic
  13. 2.5 42 km SE of Punta Cana, Dominican Republic
  14. 2.8 71 km WSW of Stella, Puerto Rico
  15. 3.0 40 km WSW of Stella, 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 2,900 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.