QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9md

7 km S of La Parguera, Puerto Rico

· 13 km deep · released about 24 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Lajas Municipio 8 kmGuánica Municipio 13 kmCabo Rojo Municipio 18 kmSabana Grande Municipio 22 kmSan Germán Municipio 23 kmHormigueros Municipio 27 kmYauco Municipio 28 kmGuayanilla Municipio 28 kmMaricao Municipio 32 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
Lajas Municipio, 8 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3062 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 17.9046, -67.0388. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Lajas Municipio, PR 8 km (5 mi) S of here earthquakes near Lajas Municipio
Guánica Municipio, PR 13 km (8 mi) WSW of here earthquakes near Guánica Municipio
Cabo Rojo Municipio, PR 18 km (11 mi) SE of here earthquakes near Cabo Rojo Municipio
Sabana Grande Municipio, PR 22 km (14 mi) SSW of here earthquakes near Sabana Grande Municipio
San Germán Municipio, PR 23 km (14 mi) S of here earthquakes near San Germán Municipio
Hormigueros Municipio, PR 27 km (17 mi) SSE of here earthquakes near Hormigueros 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 11 km S of Pole Ojea, Puerto Rico
  2. 1.6 2 km SSW of Sabana Eneas, Puerto Rico
  3. 2.0 39 km S of Tallaboa, Puerto Rico
  4. 2.3 3 km SE of Magas Arriba, Puerto Rico
  5. 1.7 8 km NW of Santo Domingo, Puerto Rico
  6. 2.6 11 km W of Pole Ojea, Puerto Rico
  7. 1.6 4 km NE of Hormigueros, Puerto Rico
  8. 1.8 3 km WSW of Tallaboa, Puerto Rico
  9. 1.9 Puerto Rico region
  10. 2.7 11 km W of Puerto Real, Puerto Rico
  11. 1.6 3 km E of Tallaboa, Puerto Rico
  12. 2.7 1 km NNE of La Playa, Puerto Rico
  13. 2.0 20 km S of Guánica, Puerto Rico
  14. 2.1 5 km N of Sabana Eneas, Puerto Rico
  15. 2.8 4 km SW of Mayagüez, 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.