QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

5 km SW of Liborio Negron Torres, Puerto Rico

· 17 km deep · released about 85 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Lajas Municipio 7 kmGuánica Municipio 8 kmSabana Grande Municipio 10 kmSan Germán Municipio 13 kmYauco Municipio 16 kmGuayanilla Municipio 19 kmMaricao Municipio 20 kmHormigueros Municipio 21 kmCabo Rojo Municipio 21 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 2.3 (md)
Depth
17 km below the surface
Felt
no reports yet
Nearest
Lajas Municipio, 7 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1184 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 85 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 180,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 130,000× the energy of this one
  3. Around the size people start to feel M 3.0 11× the energy of this one
  4. This earthquake M 2.3 about 85 lb of TNT

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 18.0028, -66.9790. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Lajas Municipio, PR 7 km (4 mi) ENE of here earthquakes near Lajas Municipio
Guánica Municipio, PR 8 km (5 mi) NW of here earthquakes near Guánica Municipio
Sabana Grande Municipio, PR 10 km (6 mi) SSW of here earthquakes near Sabana Grande Municipio
San Germán Municipio, PR 13 km (8 mi) SSE of here earthquakes near San Germán Municipio
Yauco Municipio, PR 16 km (10 mi) SW of here earthquakes near Yauco Municipio
Guayanilla Municipio, PR 19 km (12 mi) W of here earthquakes near Guayanilla Municipio

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

Aftershocks so far

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

  1. 2.3 Puerto Rico region
  2. 2.6 6 km WSW of Guánica, Puerto Rico
  3. 2.6 2 km WNW of Indios, Puerto Rico
  4. 2.2 1 km ESE of Yauco, Puerto Rico
  5. 2.0 5 km SSW of Indios, Puerto Rico
  6. 2.4 10 km SSW of Guánica, Puerto Rico
  7. 1.9 6 km SW of Guánica, Puerto Rico
  8. 2.0 1 km S of Indios, Puerto Rico
  9. 2.6 Puerto Rico region
  10. 2.3 5 km WNW of Fuig, Puerto Rico
  11. 2.4 Puerto Rico region
  12. 3.0 10 km SSW of Tallaboa, Puerto Rico
  13. 2.7 Puerto Rico region
  14. 2.4 3 km WSW of La Parguera, Puerto Rico
  15. 2.4 4 km SSW of Indios, 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 1,400,000 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.