QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

6 km NNE of Tallaboa Alta, Puerto Rico

· 20 km deep · released about 77 lb of TNT

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10 km30 km60 km120 km N Peñuelas Municipio 10 kmPonce Municipio 13 kmAdjuntas Municipio 13 kmJayuya Municipio 15 kmGuayanilla Municipio 17 kmUtuado Municipio 19 kmYauco Municipio 20 kmVillalba Municipio 21 kmJuana Díaz Municipio 22 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
20 km below the surface
Felt
no reports yet
Nearest
Peñuelas Municipio, 10 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 206 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 77 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 12× the energy of this one
  4. This earthquake M 2.3 about 77 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 18.0992, -66.6668. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Peñuelas Municipio, PR 10 km (6 mi) NE of here earthquakes near Peñuelas Municipio
Ponce Municipio, PR 13 km (8 mi) NNW of here earthquakes near Ponce Municipio
Adjuntas Municipio, PR 13 km (8 mi) SE of here earthquakes near Adjuntas Municipio
Jayuya Municipio, PR 15 km (9 mi) SW of here earthquakes near Jayuya Municipio
Guayanilla Municipio, PR 17 km (11 mi) NE of here earthquakes near Guayanilla Municipio
Utuado Municipio, PR 19 km (12 mi) SSE of here earthquakes near Utuado 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. 2.4 3 km SSW of Tallaboa, Puerto Rico
  2. 2.3 6 km WSW of Guánica, Puerto Rico
  3. 2.0 2 km SSW of Vázquez, Puerto Rico
  4. 2.0 3 km SW of Indios, Puerto Rico
  5. 1.7 1 km N of Guayanilla, Puerto Rico
  6. 1.9 2 km ESE of Palomas, Puerto Rico
  7. 2.2 4 km SE of Maria Antonia, Puerto Rico
  8. 2.1 2 km SSE of Yauco, Puerto Rico
  9. 2.1 1 km WSW of Guayanilla, Puerto Rico
  10. 1.9 5 km ENE of La Parguera, Puerto Rico
  11. 1.9 2 km NW of Guayanilla, Puerto Rico
  12. 2.0 2 km SW of Indios, Puerto Rico
  13. 2.2 2 km SSE of Las Marías, Puerto Rico
  14. 2.8 1 km SSW of Indios, Puerto Rico
  15. 2.3 3 km W of Fuig, 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.