QuakeIndex

Earthquake · reviewed by a seismologist

M 4.4mb

52 km WNW of Rincón, Puerto Rico

· 82 km deep · released about 60 tons of TNT

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10 km30 km60 km120 km N Mayagüez Municipio 47 kmRincón Municipio 53 kmAguada Municipio 58 kmAguadilla Municipio 62 kmAñasco Municipio 66 kmMoca Municipio 69 kmHormigueros Municipio 75 kmIsabela Municipio 75 kmCabo Rojo Municipio 79 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 4.4 (mb)
Depth
82 km below the surface
Felt
4 reports · strongest reported intensity II
Nearest
Mayagüez Municipio, 47 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3189 days ago

This was a light earthquake. It is usually felt clearly nearby and can rattle windows and dishes, but damage is uncommon. 4 people have reported feeling it to USGS.

How big was it?

This earthquake released about 60 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 5.4 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 2,800× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 130× the energy of this one
  3. Magna, Utah 2020 M 5.7 89× the energy of this one
  4. This earthquake M 4.4 about 60 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 130× 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 18.4764, -67.7284. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mayagüez Municipio, PR 47 km (29 mi) NNE of here earthquakes near Mayagüez Municipio
Rincón Municipio, PR 53 km (33 mi) WNW of here earthquakes near Rincón Municipio
Aguada Municipio, PR 58 km (36 mi) W of here earthquakes near Aguada Municipio
Aguadilla Municipio, PR 62 km (38 mi) W of here earthquakes near Aguadilla Municipio
Añasco Municipio, PR 66 km (41 mi) WNW of here earthquakes near Añasco Municipio
Moca Municipio, PR 69 km (43 mi) W of here earthquakes near Moca Municipio

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

Aftershocks so far

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

  1. 2.8 39 km NW of San Antonio, Puerto Rico
  2. 2.9 60 km NW of Rincón, Puerto Rico
  3. 2.9 51 km SE of Punta Cana, Dominican Republic
  4. 1.9 6 km W of Stella, Puerto Rico
  5. 2.9 40 km NW of San Antonio, Puerto Rico
  6. 2.5 37 km WNW of Rincón, Puerto Rico
  7. 3.1 42 km NW of Aguadilla, Puerto Rico
  8. 3.1 17 km NW of Rincón, Puerto Rico
  9. 2.7 21 km SW of Stella, Puerto Rico
  10. 2.5 37 km SE of Punta Cana, Dominican Republic
  11. 2.1 5 km WSW of Rincón, Puerto Rico
  12. 3.0 16 km WSW of Stella, Puerto Rico
  13. 3.2 48 km ESE of Punta Cana, Dominican Republic
  14. 2.6 27 km NNW of Rincón, Puerto Rico
  15. 1.9 59 km W 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 4.1 on 2017-09-20.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.