QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6md

10 km E of Maricao, Puerto Rico

· 9.0 km deep · released about 7.3 lb of TNT

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10 km30 km60 km120 km N Maricao Municipio 6 kmYauco Municipio 9 kmSabana Grande Municipio 12 kmLas Marías Municipio 12 kmLares Municipio 12 kmAdjuntas Municipio 13 kmSan Germán Municipio 18 kmGuayanilla Municipio 20 kmSan Sebastián 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 1.6 (md)
Depth
9.0 km below the surface
Felt
no reports yet
Nearest
Maricao Municipio, 6 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2748 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 7.3 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,500,000× the energy of this one
  3. Around the size people start to feel M 3.0 130× the energy of this one
  4. This earthquake M 1.6 about 7.3 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 18.1678, -66.8810. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Maricao Municipio, PR 6 km (4 mi) E of here earthquakes near Maricao Municipio
Yauco Municipio, PR 9 km (6 mi) NNW of here earthquakes near Yauco Municipio
Sabana Grande Municipio, PR 12 km (7 mi) NE of here earthquakes near Sabana Grande Municipio
Las Marías Municipio, PR 12 km (8 mi) ESE of here earthquakes near Las Marías Municipio
Lares Municipio, PR 12 km (8 mi) S of here earthquakes near Lares Municipio
Adjuntas Municipio, PR 13 km (8 mi) W of here earthquakes near Adjuntas Municipio

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

Aftershocks so far

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

  1. 1.6 1 km NW of Coto Laurel, Puerto Rico
  2. 2.1 3 km NW of Quebradillas, Puerto Rico
  3. 1.6 3 km SSE of Mayagüez, Puerto Rico
  4. 1.9 1 km ENE of Hormigueros, Puerto Rico
  5. 1.8 3 km SW of Las Marías, Puerto Rico
  6. 1.8 15 km NW of Puerto Real, Puerto Rico
  7. 2.1 0 km SW of Lajas, Puerto Rico
  8. 1.7 2 km NNE of Yauco, Puerto Rico
  9. 1.8 2 km N of Yauco, Puerto Rico
  10. 2.1 3 km NNE of La Playa, Puerto Rico
  11. 1.6 5 km SW of La Parguera, Puerto Rico
  12. 2.3 3 km ENE of Isabela, Puerto Rico
  13. 1.7 3 km S of Las Marías, Puerto Rico
  14. 1.5 14 km SSW of Guánica, Puerto Rico
  15. 1.8 6 km WNW of Puerto Real, 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.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.