QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5Md

3 km E of Lajas, Puerto Rico

· 20 km deep · released about 170 lb of TNT

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10 km30 km60 km120 km N San Germán Municipio 6 kmLajas Municipio 8 kmSabana Grande Municipio 9 kmHormigueros Municipio 13 kmGuánica Municipio 16 kmMaricao Municipio 16 kmCabo Rojo Municipio 18 kmYauco Municipio 18 kmLas Marías Municipio 20 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 2.5 (Md)
Depth
20 km below the surface
Felt
no reports yet
Nearest
San Germán Municipio, 6 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3518 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

How big was it?

This earthquake released about 170 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 89,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 63,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.6× the energy of this one
  4. This earthquake M 2.5 about 170 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 18.0522, -67.0241. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
San Germán Municipio, PR 6 km (4 mi) SSE of here earthquakes near San Germán Municipio
Lajas Municipio, PR 8 km (5 mi) NNE of here earthquakes near Lajas Municipio
Sabana Grande Municipio, PR 9 km (5 mi) WSW of here earthquakes near Sabana Grande Municipio
Hormigueros Municipio, PR 13 km (8 mi) SE of here earthquakes near Hormigueros Municipio
Guánica Municipio, PR 16 km (10 mi) NW of here earthquakes near Guánica Municipio
Maricao Municipio, PR 16 km (10 mi) SW of here earthquakes near Maricao Municipio

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

Aftershocks so far

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

  1. 2.1 1 km SE of San Germán, Puerto Rico
  2. 2.5 15 km SSW of Stella, Puerto Rico
  3. 2.4 7 km WSW of La Parguera, Puerto Rico
  4. 2.7 18 km SSE of Tallaboa, Puerto Rico
  5. 1.9 8 km WSW of La Parguera, Puerto Rico
  6. 2.4 7 km WSW of La Parguera, Puerto Rico
  7. 2.6 5 km WNW of La Parguera, Puerto Rico
  8. 2.6 5 km WSW of La Parguera, Puerto Rico
  9. 2.4 8 km SSE of La Parguera, Puerto Rico
  10. 2.3 20 km S of La Parguera, Puerto Rico
  11. 2.3 13 km SSW of Guánica, Puerto Rico
  12. 2.4 1 km W of San Germán, Puerto Rico
  13. 1.7 1 km WNW of Monte Grande, Puerto Rico
  14. 1.9 12 km SSE of Lares, Puerto Rico
  15. 2.0 20 km SSW of Guánica, 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.