QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9md

1 km NE of Jauca, Puerto Rico

· 13 km deep · released about 19 lb of TNT

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10 km30 km60 km120 km N Santa Isabel Municipio 4 kmSalinas Municipio 10 kmCoamo Municipio 14 kmJuana Díaz Municipio 14 kmAibonito Municipio 20 kmVillalba Municipio 21 kmGuayama Municipio 23 kmBarranquitas Municipio 25 kmCayey Municipio 26 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
13 km below the surface
Felt
no reports yet
Nearest
Santa Isabel Municipio, 4 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3017 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 19 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 5.8 790,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 560,000× the energy of this one
  3. Around the size people start to feel M 3.0 50× the energy of this one
  4. This earthquake M 1.9 about 19 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 17.9773, -66.3566. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Santa Isabel Municipio, PR 4 km (3 mi) NE of here earthquakes near Santa Isabel Municipio
Salinas Municipio, PR 10 km (6 mi) W of here earthquakes near Salinas Municipio
Coamo Municipio, PR 14 km (9 mi) S of here earthquakes near Coamo Municipio
Juana Díaz Municipio, PR 14 km (9 mi) E of here earthquakes near Juana Díaz Municipio
Aibonito Municipio, PR 20 km (12 mi) SSW of here earthquakes near Aibonito Municipio
Villalba Municipio, PR 21 km (13 mi) SE of here earthquakes near Villalba Municipio

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

Aftershocks so far

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

  1. 2.2 2 km NNE of Coquí, Puerto Rico
  2. 1.8 6 km WSW of Adjuntas, Puerto Rico
  3. 2.0 1 km W of Guayabal, Puerto Rico
  4. 2.1 7 km SW of Tallaboa, Puerto Rico
  5. 2.1 2 km E of Juana Díaz, Puerto Rico
  6. 1.6 4 km E of Tallaboa Alta, Puerto Rico
  7. 1.5 4 km E of Tallaboa Alta, Puerto Rico
  8. 2.1 7 km S of Emajagua, Puerto Rico
  9. 2.2 2 km SSW of Tallaboa, Puerto Rico
  10. 1.6 0 km SW of Capitanejo, Puerto Rico
  11. 2.0 9 km SSW of Emajagua, Puerto Rico
  12. 1.9 6 km SSW of Emajagua, Puerto Rico
  13. 1.8 4 km S of Caguas, Puerto Rico
  14. 1.7 4 km SSE of Indios, Puerto Rico
  15. 1.9 2 km WNW of Guayanilla, 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.