QuakeIndex

Earthquake · reviewed by a seismologist

M 3.2md

1 km W of Tallaboa, Puerto Rico

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

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Peñuelas Municipio 3 kmGuayanilla Municipio 8 kmPonce Municipio 13 kmYauco Municipio 17 kmAdjuntas Municipio 21 kmGuánica Municipio 21 kmJuana Díaz Municipio 25 kmSabana Grande Municipio 25 kmJayuya Municipio 28 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
12 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Peñuelas Municipio, 3 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1300 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 1 person has reported feeling it to USGS.

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 17.9953, -66.7273. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Peñuelas Municipio, PR 3 km (2 mi) S of here earthquakes near Peñuelas Municipio
Guayanilla Municipio, PR 8 km (5 mi) E of here earthquakes near Guayanilla Municipio
Ponce Municipio, PR 13 km (8 mi) W of here earthquakes near Ponce Municipio
Yauco Municipio, PR 17 km (11 mi) SE of here earthquakes near Yauco Municipio
Adjuntas Municipio, PR 21 km (13 mi) S of here earthquakes near Adjuntas Municipio
Guánica Municipio, PR 21 km (13 mi) ENE of here earthquakes near Guánica Municipio

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

Aftershocks so far

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

  1. 2.0 4 km ESE of Maria Antonia, Puerto Rico
  2. 1.7 4 km ENE of La Parguera, Puerto Rico
  3. 2.3 2 km NW of Tallaboa, Puerto Rico
  4. 1.8 6 km WSW of Guánica, Puerto Rico
  5. 1.8 3 km SW of Tallaboa, Puerto Rico
  6. 2.3 Puerto Rico region
  7. 2.2 0 km WNW of Guayanilla, Puerto Rico
  8. 2.4 7 km SW of Tallaboa, Puerto Rico
  9. 1.9 2 km SE of Cabo Rojo, Puerto Rico
  10. 2.2 15 km S of Guánica, Puerto Rico
  11. 1.9 Puerto Rico region
  12. 2.6 4 km SW of Indios, Puerto Rico
  13. 2.2 10 km SSE of Maria Antonia, Puerto Rico
  14. 3.2 0 km WNW of Mayag?ez, Puerto Rico
  15. 2.4 Puerto Rico region

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 65,000 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.