QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

28 km S of Tallaboa, Puerto Rico

· 11 km deep · released about 74 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Guayanilla Municipio 31 kmGuánica Municipio 32 kmPonce Municipio 32 kmPeñuelas Municipio 32 kmJuana Díaz Municipio 38 kmYauco Municipio 41 kmSanta Isabel Municipio 43 kmLajas Municipio 43 kmSabana Grande Municipio 46 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
11 km below the surface
Felt
no reports yet
Nearest
Guayanilla Municipio, 31 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2340 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 74 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 5.8 200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 140,000× the energy of this one
  3. Around the size people start to feel M 3.0 13× the energy of this one
  4. This earthquake M 2.3 about 74 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 17.7358, -66.7216. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Guayanilla Municipio, PR 31 km (19 mi) SSE of here earthquakes near Guayanilla Municipio
Guánica Municipio, PR 32 km (20 mi) SE of here earthquakes near Guánica Municipio
Ponce Municipio, PR 32 km (20 mi) SSW of here earthquakes near Ponce Municipio
Peñuelas Municipio, PR 32 km (20 mi) S of here earthquakes near Peñuelas Municipio
Juana Díaz Municipio, PR 38 km (24 mi) SW of here earthquakes near Juana Díaz Municipio
Yauco Municipio, PR 41 km (26 mi) SSE of here earthquakes near Yauco 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. 2.5 7 km S of Guánica, Puerto Rico
  2. 2.2 0 km WSW of Guayanilla, Puerto Rico
  3. 1.9 4 km SSW of Indios, Puerto Rico
  4. 3.0 1 km WNW of Guayanilla, Puerto Rico
  5. 1.6 9 km SSE of Indios, Puerto Rico
  6. 1.5 1 km WSW of Magas Arriba, Puerto Rico
  7. 1.9 1 km NE of Magas Arriba, Puerto Rico
  8. 1.8 9 km S of Tallaboa, Puerto Rico
  9. 4.2 3 km WSW of Tallaboa, Puerto Rico
  10. 1.7 2 km N of Magas Arriba, Puerto Rico
  11. 2.4 Puerto Rico region
  12. 1.9 10 km S of Indios, Puerto Rico
  13. 3.1 0 km E of Peñuelas, Puerto Rico
  14. 1.8 1 km N of Guayanilla, Puerto Rico
  15. 3.1 1 km SSE of Magas Arriba, 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 1,600,000 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.