QuakeIndex

Earthquake · reviewed by a seismologist

M 3.2md

7 km SSW of La Playa, Puerto Rico

· 128 km deep · released about 1 tons of TNT

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10 km30 km60 km120 km N Añasco Municipio 12 kmRincón Municipio 13 kmHormigueros Municipio 14 kmAguada Municipio 17 kmMoca Municipio 23 kmSan Germán Municipio 23 kmCabo Rojo Municipio 25 kmLas Marías Municipio 25 kmSan Sebastián Municipio 29 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
128 km below the surface
Felt
2 reports · strongest reported intensity II
Nearest
Añasco Municipio, 12 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 868 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 2 people have reported feeling it to USGS.

How big was it?

This earthquake released about 1 tons 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 6.7 170,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 7,400× the energy of this one
  3. Magna, Utah 2020 M 5.7 5,200× the energy of this one
  4. This earthquake M 3.2 about 1 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 2.1× 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 18.2220, -67.2170. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Añasco Municipio, PR 12 km (7 mi) SW of here earthquakes near Añasco Municipio
Rincón Municipio, PR 13 km (8 mi) SSE of here earthquakes near Rincón Municipio
Hormigueros Municipio, PR 14 km (9 mi) NW of here earthquakes near Hormigueros Municipio
Aguada Municipio, PR 17 km (11 mi) S of here earthquakes near Aguada Municipio
Moca Municipio, PR 23 km (14 mi) SW of here earthquakes near Moca Municipio
San Germán Municipio, PR 23 km (14 mi) NW of here earthquakes near San Germán 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. 3.0 10 km WSW of Stella, Puerto Rico
  2. 2.5 4 km WSW of Guánica, Puerto Rico
  3. 2.1 1 km S of Yauco, Puerto Rico
  4. 2.3 6 km ENE of La Parguera, Puerto Rico
  5. 3.3 1 km WNW of Aguada, Puerto Rico
  6. 1.9 2 km SSE of Guánica, Puerto Rico
  7. 2.2 6 km WSW of Liborio Negron Torres, Puerto Rico
  8. 3.0 14 km WNW of Rincón, Puerto Rico
  9. 2.6 23 km SW of Stella, Puerto Rico
  10. 2.5 9 km SSW of Guánica, Puerto Rico
  11. 2.6 8 km NW of Rincón, Puerto Rico
  12. 2.5 0 km SE of Indios, Puerto Rico
  13. 2.3 8 km SW of Guánica, Puerto Rico
  14. 2.0 2 km W of Fuig, Puerto Rico
  15. 2.8 2 km SE of Yauco, 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 5.9 on 2020-01-11 — it released about 10,000 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.