QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9md

3 km SE of Utuado, Puerto Rico

· 8.0 km deep · released about 23 lb of TNT

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10 km30 km60 km120 km N Utuado Municipio 4 kmJayuya Municipio 10 kmAdjuntas Municipio 11 kmCiales Municipio 18 kmFlorida Municipio 18 kmLares Municipio 21 kmArecibo Municipio 21 kmHatillo Municipio 25 kmVillalba Municipio 25 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 1.9 (md)
Depth
8.0 km below the surface
Felt
no reports yet
Nearest
Utuado Municipio, 4 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2536 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 23 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 660,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 470,000× the energy of this one
  3. Around the size people start to feel M 3.0 42× the energy of this one
  4. This earthquake M 1.9 about 23 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 18.2480, -66.6763. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Utuado Municipio, PR 4 km (2 mi) SE of here earthquakes near Utuado Municipio
Jayuya Municipio, PR 10 km (6 mi) WNW of here earthquakes near Jayuya Municipio
Adjuntas Municipio, PR 11 km (7 mi) NE of here earthquakes near Adjuntas Municipio
Ciales Municipio, PR 18 km (11 mi) WSW of here earthquakes near Ciales Municipio
Florida Municipio, PR 18 km (11 mi) SW of here earthquakes near Florida Municipio
Lares Municipio, PR 21 km (13 mi) E of here earthquakes near Lares Municipio

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

Aftershocks so far

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

  1. 1.8 2 km SE of Jauca, Puerto Rico
  2. 2.7 4 km SE of Jauca, Puerto Rico
  3. 1.8 8 km ESE of Adjuntas, Puerto Rico
  4. 1.9 2 km E of Jauca, Puerto Rico
  5. 1.9 2 km ESE of Jauca, Puerto Rico
  6. 2.0 7 km SW of Guánica, Puerto Rico
  7. 1.7 15 km S of Ponce, Puerto Rico
  8. 2.3 4 km SE of Jauca, Puerto Rico
  9. 1.9 9 km SW of Guánica, Puerto Rico
  10. 2.5 2 km SSW of Sabana Hoyos, Puerto Rico
  11. 1.9 2 km SSW of Las Ochenta, Puerto Rico
  12. 2.5 2 km NNE of El Ojo, Puerto Rico
  13. 2.2 3 km ESE of Jauca, Puerto Rico
  14. 1.6 14 km SSW of Potala Pastillo, Puerto Rico
  15. 1.8 2 km SSW of Las Ochenta, 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.