QuakeIndex

Earthquake · reviewed by a seismologist

M 3.2md

10 km SSE of Indios, Puerto Rico

· 6.0 km deep · released about 1,700 lb of TNT

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10 km30 km60 km120 km N Guayanilla Municipio 11 kmPeñuelas Municipio 14 kmGuánica Municipio 17 kmPonce Municipio 20 kmYauco Municipio 22 kmSabana Grande Municipio 27 kmLajas Municipio 30 kmAdjuntas Municipio 30 kmJuana Díaz Municipio 31 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
6.0 km below the surface
Felt
no reports yet
Nearest
Guayanilla Municipio, 11 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1836 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 1,700 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 6.7 200,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 8,800× the energy of this one
  3. Magna, Utah 2020 M 5.7 6,200× the energy of this one
  4. This earthquake M 3.2 about 1,700 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 1.8× 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 17.9108, -66.7675. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Guayanilla Municipio, PR 11 km (7 mi) SSE of here earthquakes near Guayanilla Municipio
Peñuelas Municipio, PR 14 km (8 mi) SSW of here earthquakes near Peñuelas Municipio
Guánica Municipio, PR 17 km (11 mi) ESE of here earthquakes near Guánica Municipio
Ponce Municipio, PR 20 km (12 mi) WSW of here earthquakes near Ponce Municipio
Yauco Municipio, PR 22 km (13 mi) SSE of here earthquakes near Yauco Municipio
Sabana Grande Municipio, PR 27 km (17 mi) SE of here earthquakes near Sabana Grande Municipio

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

Aftershocks so far

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

  1. 2.9 5 km SE of Maria Antonia, Puerto Rico
  2. 3.1 6 km WSW of La Parguera, Puerto Rico
  3. 2.3 4 km WSW of La Parguera, Puerto Rico
  4. 2.3 6 km WSW of La Parguera, Puerto Rico
  5. 2.5 Puerto Rico region
  6. 2.5 7 km WSW of La Parguera, Puerto Rico
  7. 2.2 4 km SW of Indios, Puerto Rico
  8. 2.4 5 km WSW of La Parguera, Puerto Rico
  9. 2.2 5 km SW of La Parguera, Puerto Rico
  10. 2.3 4 km WSW of La Parguera, Puerto Rico
  11. 2.5 Puerto Rico region
  12. 3.2 5 km SSE of Guánica, Puerto Rico
  13. 2.4 4 km SW of La Parguera, Puerto Rico
  14. 2.8 6 km WSW of La Parguera, Puerto Rico
  15. 2.6 5 km WSW of La Parguera, 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 6.4 on 2020-01-07 — it released about 70,000 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.