QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9md

2 km W of Jauca, Puerto Rico

· 12 km deep · released about 24 lb of TNT

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10 km30 km60 km120 km N Santa Isabel Municipio 2 kmJuana Díaz Municipio 12 kmSalinas Municipio 13 kmCoamo Municipio 15 kmVillalba Municipio 20 kmAibonito Municipio 22 kmPonce Municipio 24 kmGuayama Municipio 26 kmBarranquitas Municipio 27 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, 2 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2833 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 24 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 5.8 640,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 450,000× the energy of this one
  3. Around the size people start to feel M 3.0 40× the energy of this one
  4. This earthquake M 1.9 about 24 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 17.9678, -66.3846. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Santa Isabel Municipio, PR 2 km (1 mi) N of here earthquakes near Santa Isabel Municipio
Juana Díaz Municipio, PR 12 km (7 mi) ESE of here earthquakes near Juana Díaz Municipio
Salinas Municipio, PR 13 km (8 mi) W of here earthquakes near Salinas Municipio
Coamo Municipio, PR 15 km (10 mi) S of here earthquakes near Coamo Municipio
Villalba Municipio, PR 20 km (13 mi) SSE of here earthquakes near Villalba Municipio
Aibonito Municipio, PR 22 km (14 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

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

  1. 2.2 1 km NW of Sumidero, Puerto Rico
  2. 2.0 6 km NW of Adjuntas, Puerto Rico
  3. 2.7 2 km SW of H. Rivera Colon, Puerto Rico
  4. 1.5 7 km ESE of Adjuntas, Puerto Rico
  5. 1.5 1 km NE of Yauco, Puerto Rico
  6. 1.6 7 km SSW of Estancias de Florida, Puerto Rico
  7. 2.6 3 km N of Cidra, Puerto Rico
  8. 2.7 5 km S of Jayuya, Puerto Rico
  9. 1.7 3 km SSE of Santa Isabel, Puerto Rico
  10. 1.8 4 km SE of Indios, Puerto Rico
  11. 2.1 1 km S of Guayanilla, Puerto Rico
  12. 2.1 0 km SW of Toa Alta, Puerto Rico
  13. 2.0 3 km SW of Adjuntas, Puerto Rico
  14. 1.9 5 km SSE of Central Aguirre, Puerto Rico
  15. 1.9 6 km WNW of Palomas, 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.