QuakeIndex

Earthquake · reviewed by a seismologist

M 5.0ml

10 km SSE of Guánica, Puerto Rico

· 6.0 km deep · released about 480 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Guánica Municipio 9 kmGuayanilla Municipio 15 kmPeñuelas Municipio 21 kmLajas Municipio 21 kmYauco Municipio 22 kmSabana Grande Municipio 24 kmPonce Municipio 30 kmSan Germán Municipio 31 kmMaricao Municipio 33 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 5.0 (ml)
Depth
6.0 km below the surface
Felt
339 reports · strongest reported intensity VI
Measured shaking
intensity V (ShakeMap)
USGS impact alert
green
Nearest
Guánica Municipio, 9 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1285 days ago

This was a moderate earthquake. Shaking at this size can damage poorly built structures close to the epicentre. 339 people have reported feeling it to USGS.

How big was it?

This earthquake released about 480 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 6.0 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 350× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 16× the energy of this one
  3. Magna, Utah 2020 M 5.7 11× the energy of this one
  4. This earthquake M 5.0 about 480 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 1,000× more

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 17.8846, -66.8640. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Guánica Municipio, PR 9 km (6 mi) SE of here earthquakes near Guánica Municipio
Guayanilla Municipio, PR 15 km (9 mi) SSW of here earthquakes near Guayanilla Municipio
Peñuelas Municipio, PR 21 km (13 mi) SW of here earthquakes near Peñuelas Municipio
Lajas Municipio, PR 21 km (13 mi) ESE of here earthquakes near Lajas Municipio
Yauco Municipio, PR 22 km (14 mi) S of here earthquakes near Yauco Municipio
Sabana Grande Municipio, PR 24 km (15 mi) SSE of here earthquakes near Sabana Grande 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. 1.8 13 km SSE of Guánica, Puerto Rico
  2. 1.8 9 km S of Indios, Puerto Rico
  3. 1.8 8 km SSE of Guánica, Puerto Rico
  4. 1.8 10 km S of Indios, Puerto Rico
  5. 2.1 7 km SSE of Guánica, Puerto Rico
  6. 2.1 8 km NE of Tallaboa Alta, Puerto Rico
  7. 2.2 17 km SSW of Guánica, Puerto Rico
  8. 1.7 Puerto Rico region
  9. 1.9 11 km S of Indios, Puerto Rico
  10. 2.9 8 km S of Indios, Puerto Rico
  11. 1.9 9 km SE of Maria Antonia, Puerto Rico
  12. 2.0 14 km S of Guánica, Puerto Rico
  13. 1.8 Puerto Rico region
  14. 1.9 9 km SSE of Maria Antonia, Puerto Rico
  15. 2.1 7 km SSE of Maria Antonia, 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 4.7 on 2019-12-28.

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

On USGS

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