QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4md

3 km SE of Hormigueros, Puerto Rico

· 15 km deep · released about 140 lb of TNT

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10 km30 km60 km120 km N Hormigueros Municipio 2 kmSan Germán Municipio 7 kmCabo Rojo Municipio 16 kmSabana Grande Municipio 17 kmLajas Municipio 17 kmLas Marías Municipio 18 kmMaricao Municipio 19 kmAñasco Municipio 19 kmYauco Municipio 26 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 2.4 (md)
Depth
15 km below the surface
Felt
no reports yet
Nearest
Hormigueros Municipio, 2 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2693 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 140 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 110,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 78,000× the energy of this one
  3. Around the size people start to feel M 3.0 6.9× the energy of this one
  4. This earthquake M 2.4 about 140 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 18.1193, -67.1011. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Hormigueros Municipio, PR 2 km (1 mi) SE of here earthquakes near Hormigueros Municipio
San Germán Municipio, PR 7 km (4 mi) W of here earthquakes near San Germán Municipio
Cabo Rojo Municipio, PR 16 km (10 mi) NNE of here earthquakes near Cabo Rojo Municipio
Sabana Grande Municipio, PR 17 km (10 mi) WNW of here earthquakes near Sabana Grande Municipio
Lajas Municipio, PR 17 km (11 mi) NNW of here earthquakes near Lajas Municipio
Las Marías Municipio, PR 18 km (11 mi) SW of here earthquakes near Las Marías Municipio

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

Aftershocks so far

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

  1. 2.2 1 km N of Pole Ojea, Puerto Rico
  2. 2.2 4 km NNE of Sabana Eneas, Puerto Rico
  3. 2.0 13 km SSE of Maria Antonia, Puerto Rico
  4. 2.0 Puerto Rico region
  5. 2.4 3 km NW of Aguadilla, Puerto Rico
  6. 1.7 9 km SSW of La Playa, Puerto Rico
  7. 1.7 10 km S of Guánica, Puerto Rico
  8. 1.8 9 km SSW of Guánica, Puerto Rico
  9. 1.9 0 km SSW of Adjuntas, Puerto Rico
  10. 2.1 1 km S of Adjuntas, Puerto Rico
  11. 2.1 1 km S of Adjuntas, Puerto Rico
  12. 1.6 1 km NNW of Monte Grande, Puerto Rico
  13. 2.2 5 km N of San Germán, Puerto Rico
  14. 2.1 1 km SE of Espino, Puerto Rico
  15. 2.1 9 km ESE of Maricao, 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 620 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.