QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4md

3 km SW of Maricao, Puerto Rico

· 20 km deep · released about 120 lb of TNT

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10 km30 km60 km120 km N Maricao Municipio 7 kmSan Germán Municipio 7 kmLas Marías Municipio 8 kmSabana Grande Municipio 10 kmHormigueros Municipio 13 kmYauco Municipio 17 kmLares Municipio 19 kmSan Sebastián Municipio 19 kmAñasco Municipio 20 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
20 km below the surface
Felt
no reports yet
Nearest
Maricao Municipio, 7 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 97 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 120 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 5.8 130,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 92,000× the energy of this one
  3. Around the size people start to feel M 3.0 8.2× the energy of this one
  4. This earthquake M 2.4 about 120 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 18.1588, -66.9978. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Maricao Municipio, PR 7 km (4 mi) WSW of here earthquakes near Maricao Municipio
San Germán Municipio, PR 7 km (4 mi) NE of here earthquakes near San Germán Municipio
Las Marías Municipio, PR 8 km (5 mi) SSW of here earthquakes near Las Marías Municipio
Sabana Grande Municipio, PR 10 km (6 mi) NNW of here earthquakes near Sabana Grande Municipio
Hormigueros Municipio, PR 13 km (8 mi) ENE of here earthquakes near Hormigueros Municipio
Yauco Municipio, PR 17 km (10 mi) WNW of here earthquakes near Yauco Municipio

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

Aftershocks so far

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

  1. 1.6 6 km W of La Parguera, Puerto Rico
  2. 1.9 5 km ESE of La Parguera, Puerto Rico
  3. 1.9 8 km SE of La Parguera, Puerto Rico
  4. 2.3 2 km SW of Indios, Puerto Rico
  5. 2.5 12 km S of Guánica, Puerto Rico
  6. 2.9 11 km S of Guánica, Puerto Rico
  7. 2.4 2 km W of Fuig, Puerto Rico
  8. 2.1 4 km S of Indios, Puerto Rico
  9. 2.0 4 km WSW of Guánica, Puerto Rico
  10. 1.8 6 km E of La Parguera, Puerto Rico
  11. 1.9 3 km SSW of Indios, Puerto Rico
  12. 1.9 3 km WSW of Indios, Puerto Rico
  13. 2.5 2 km SW of Indios, Puerto Rico
  14. 2.0 3 km WSW of Indios, Puerto Rico
  15. 3.9 2 km SW 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 1,000,000 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.