QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6md

21 km S of Guánica, Puerto Rico

· 10 km deep · released about 280 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Guánica Municipio 19 kmLajas Municipio 25 kmGuayanilla Municipio 29 kmSabana Grande Municipio 34 kmYauco Municipio 35 kmPeñuelas Municipio 35 kmCabo Rojo Municipio 36 kmSan Germán Municipio 38 kmPonce Municipio 42 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 2.6 (md)
Depth
10 km below the surface
Felt
no reports yet
Nearest
Guánica Municipio, 19 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2207 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 280 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 55,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 39,000× the energy of this one
  3. Around the size people start to feel M 3.0 3.5× the energy of this one
  4. This earthquake M 2.6 about 280 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 17.7806, -66.9331. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Guánica Municipio, PR 19 km (12 mi) S of here earthquakes near Guánica Municipio
Lajas Municipio, PR 25 km (15 mi) SSE of here earthquakes near Lajas Municipio
Guayanilla Municipio, PR 29 km (18 mi) SSW of here earthquakes near Guayanilla Municipio
Sabana Grande Municipio, PR 34 km (21 mi) S of here earthquakes near Sabana Grande Municipio
Yauco Municipio, PR 35 km (22 mi) SSW of here earthquakes near Yauco Municipio
Peñuelas Municipio, PR 35 km (22 mi) SW of here earthquakes near Peñuelas Municipio

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

Aftershocks so far

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

  1. 2.5 0 km N of Indios, Puerto Rico
  2. 2.7 8 km SW of Guánica, Puerto Rico
  3. 2.2 7 km WSW of Fuig, Puerto Rico
  4. 3.0 3 km SE of Magas Arriba, Puerto Rico
  5. 2.6 4 km SW of Guánica, Puerto Rico
  6. 2.5 3 km S of Guánica, Puerto Rico
  7. 2.5 4 km WSW of Guánica, Puerto Rico
  8. 2.0 7 km S of Indios, Puerto Rico
  9. 2.0 6 km E of La Parguera, Puerto Rico
  10. 2.9 5 km S of Indios, Puerto Rico
  11. 2.8 5 km SSW of Indios, Puerto Rico
  12. 2.8 7 km SW of Guánica, Puerto Rico
  13. 2.5 11 km SW of Potala Pastillo, Puerto Rico
  14. 2.8 5 km SW of Guánica, Puerto Rico
  15. 2.7 4 km E of La Parguera, 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 440,000 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.