QuakeIndex

Earthquake · reviewed by a seismologist

M 3.2md

80 km W of Pole Ojea, Puerto Rico

· 112 km deep · released about 1,800 lb of TNT

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10 km30 km60 km120 km N Mayagüez Municipio 18 kmCabo Rojo Municipio 81 kmRincón Municipio 86 kmHormigueros Municipio 90 kmAguada Municipio 94 kmAñasco Municipio 94 kmLajas Municipio 95 kmSan Germán Municipio 98 kmMoca Municipio 104 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 3.2 (md)
Depth
112 km below the surface
Felt
no reports yet
Nearest
Mayagüez Municipio, 18 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3036 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 1,800 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.2 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 180,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 8,200× the energy of this one
  3. Magna, Utah 2020 M 5.7 5,800× the energy of this one
  4. This earthquake M 3.2 about 1,800 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 1.9× 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 17.9265, -67.9396. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mayagüez Municipio, PR 18 km (11 mi) SSW of here earthquakes near Mayagüez Municipio
Cabo Rojo Municipio, PR 81 km (50 mi) W of here earthquakes near Cabo Rojo Municipio
Rincón Municipio, PR 86 km (53 mi) WSW of here earthquakes near Rincón Municipio
Hormigueros Municipio, PR 90 km (56 mi) WSW of here earthquakes near Hormigueros Municipio
Aguada Municipio, PR 94 km (58 mi) WSW of here earthquakes near Aguada Municipio
Añasco Municipio, PR 94 km (59 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

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

  1. 2.9 50 km SE of Boca de Yuma, Dominican Republic
  2. 2.9 58 km SE of Boca de Yuma, Dominican Republic
  3. 2.8 63 km W of Puerto Real, Puerto Rico
  4. 2.8 43 km SSE of Punta Cana, Dominican Republic
  5. 3.2 72 km W of Puerto Real, Puerto Rico
  6. 3.0 71 km ESE of Boca de Yuma, Dominican Republic
  7. 3.4 62 km SSE of Boca de Yuma, Dominican Republic
  8. 3.0 77 km WSW of Pole Ojea, Puerto Rico
  9. 2.8 66 km SE of Boca de Yuma, Dominican Republic
  10. 3.1 71 km WSW of Stella, Puerto Rico
  11. 2.7 54 km WSW of Stella, Puerto Rico
  12. 3.0 Dominican Republic region
  13. 2.8 53 km W of Puerto Real, Puerto Rico
  14. 2.1 43 km WSW of Stella, Puerto Rico
  15. 3.2 69 km SE of Punta Cana, 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 4.3 on 2017-07-18 — it released about 46 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.