QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

6 km N of Puerto Real, Puerto Rico

· 83 km deep · released about 98 lb of TNT

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10 km30 km60 km120 km N Hormigueros Municipio 8 kmCabo Rojo Municipio 15 kmSan Germán Municipio 17 kmAñasco Municipio 19 kmLajas Municipio 24 kmRincón Municipio 24 kmLas Marías Municipio 25 kmSabana Grande Municipio 27 kmAguada Municipio 27 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
83 km below the surface
Felt
no reports yet
Nearest
Hormigueros Municipio, 8 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2802 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 98 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 5.8 150,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 110,000× the energy of this one
  3. Around the size people start to feel M 3.0 9.8× the energy of this one
  4. This earthquake M 2.3 about 98 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 18.1310, -67.1953. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Hormigueros Municipio, PR 8 km (5 mi) W of here earthquakes near Hormigueros Municipio
Cabo Rojo Municipio, PR 15 km (9 mi) N of here earthquakes near Cabo Rojo Municipio
San Germán Municipio, PR 17 km (11 mi) W of here earthquakes near San Germán Municipio
Añasco Municipio, PR 19 km (12 mi) SSW of here earthquakes near Añasco Municipio
Lajas Municipio, PR 24 km (15 mi) NW of here earthquakes near Lajas Municipio
Rincón Municipio, PR 24 km (15 mi) SSE of here earthquakes near Rincón Municipio

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

Aftershocks so far

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

  1. 1.5 Puerto Rico region
  2. 2.5 2 km SSE of Boquerón, Puerto Rico
  3. 1.8 0 km SSE of Juncal, Puerto Rico
  4. 1.7 Mona Passage
  5. 2.0 3 km SE of Pole Ojea, Puerto Rico
  6. 1.9 4 km SSE of Pole Ojea, Puerto Rico
  7. 2.0 1 km NNE of Santo Domingo, Puerto Rico
  8. 1.8 4 km ESE of Pole Ojea, Puerto Rico
  9. 2.1 5 km SE of Boquerón, Puerto Rico
  10. 2.2 2 km ESE of Pole Ojea, Puerto Rico
  11. 1.6 2 km WSW of Liborio Negron Torres, Puerto Rico
  12. 2.0 3 km WSW of Tallaboa, Puerto Rico
  13. 2.6 5 km SW of Sabana Grande, Puerto Rico
  14. 2.0 1 km WSW of Indios, Puerto Rico
  15. 1.8 7 km S 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 4.3 on 2017-10-14 — it released about 870 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.