QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9md

1 km ENE of El Ojo, Puerto Rico

· 12 km deep · released about 25 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Santa Isabel Municipio 6 kmCoamo Municipio 11 kmJuana Díaz Municipio 12 kmSalinas Municipio 13 kmVillalba Municipio 17 kmAibonito Municipio 18 kmBarranquitas Municipio 22 kmOrocovis Municipio 24 kmPonce Municipio 24 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
12 km below the surface
Felt
no reports yet
Nearest
Santa Isabel Municipio, 6 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2784 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 25 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 600,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 420,000× the energy of this one
  3. Around the size people start to feel M 3.0 38× the energy of this one
  4. This earthquake M 1.9 about 25 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 18.0100, -66.3760. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Santa Isabel Municipio, PR 6 km (4 mi) N of here earthquakes near Santa Isabel Municipio
Coamo Municipio, PR 11 km (7 mi) S of here earthquakes near Coamo Municipio
Juana Díaz Municipio, PR 12 km (8 mi) E of here earthquakes near Juana Díaz Municipio
Salinas Municipio, PR 13 km (8 mi) WNW of here earthquakes near Salinas Municipio
Villalba Municipio, PR 17 km (10 mi) SE of here earthquakes near Villalba Municipio
Aibonito Municipio, PR 18 km (11 mi) SW of here earthquakes near Aibonito Municipio

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

Aftershocks so far

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

  1. 1.7 0 km NE of Jobos, Puerto Rico
  2. 2.6 2 km NNE of Jobos, Puerto Rico
  3. 2.2 1 km SSW of Jobos, Puerto Rico
  4. 2.0 Puerto Rico region
  5. 2.3 1 km SW of Jobos, Puerto Rico
  6. 1.8 0 km NE of Jobos, Puerto Rico
  7. 2.6 0 km ENE of Jobos, Puerto Rico
  8. 2.1 2 km N of Jobos, Puerto Rico
  9. 1.6 1 km ENE of Jobos, Puerto Rico
  10. 2.1 5 km N of Jobos, Puerto Rico
  11. 1.8 1 km SSW of Jobos, Puerto Rico
  12. 2.9 1 km E of Jobos, Puerto Rico
  13. 4.6 3 km SSW of Jobos, Puerto Rico
  14. 2.2 0 km E of Jobos, Puerto Rico
  15. 1.9 0 km E of Jobos, 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.