QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5md

1 km N of Liborio Negron Torres, Puerto Rico

· 17 km deep · released about 180 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Sabana Grande Municipio 3 kmYauco Municipio 10 kmSan Germán Municipio 11 kmMaricao Municipio 13 kmGuánica Municipio 13 kmLajas Municipio 14 kmGuayanilla Municipio 17 kmLas Marías Municipio 19 kmHormigueros 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
17 km below the surface
Felt
no reports yet
Nearest
Sabana Grande Municipio, 3 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 175 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 180 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 83,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 59,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.2× the energy of this one
  4. This earthquake M 2.5 about 180 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 18.0610, -66.9440. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Sabana Grande Municipio, PR 3 km (2 mi) S of here earthquakes near Sabana Grande Municipio
Yauco Municipio, PR 10 km (6 mi) WSW of here earthquakes near Yauco Municipio
San Germán Municipio, PR 11 km (7 mi) ESE of here earthquakes near San Germán Municipio
Maricao Municipio, PR 13 km (8 mi) S of here earthquakes near Maricao Municipio
Guánica Municipio, PR 13 km (8 mi) N of here earthquakes near Guánica Municipio
Lajas Municipio, PR 14 km (9 mi) NE of here earthquakes near Lajas Municipio

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

Aftershocks so far

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

  1. 2.2 4 km SSW of Indios, Puerto Rico
  2. 2.0 4 km SW of Indios, Puerto Rico
  3. 2.3 3 km SSW of Indios, Puerto Rico
  4. 2.7 2 km SW of Indios, Puerto Rico
  5. 2.5 4 km SSW of Indios, Puerto Rico
  6. 2.8 4 km SSE of Magas Arriba, Puerto Rico
  7. 2.4 3 km WSW of Indios, Puerto Rico
  8. 3.0 3 km SSW of Indios, Puerto Rico
  9. 3.1 3 km SSW of Indios, Puerto Rico
  10. 2.9 3 km SW of Indios, Puerto Rico
  11. 2.0 2 km NW of Tallaboa, Puerto Rico
  12. 2.2 4 km W of La Parguera, Puerto Rico
  13. 2.1 6 km SW of Adjuntas, Puerto Rico
  14. 2.5 6 km WSW of Guánica, Puerto Rico
  15. 1.9 2 km ESE of Magas Arriba, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 6.4 on 2020-01-07 — it released about 660,000 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.