QuakeIndex

Earthquake · reviewed by a seismologist

M 5.8mwp

14 km S of Indios, Puerto Rico

· 6.0 km deep · released about 7.6 kilotons of TNT

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10 km30 km60 km120 km N Guánica Municipio 14 kmGuayanilla Municipio 15 kmPeñuelas Municipio 20 kmYauco Municipio 25 kmLajas Municipio 26 kmPonce Municipio 27 kmSabana Grande Municipio 28 kmSan Germán Municipio 35 kmAdjuntas Municipio 36 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 5.8 (mwp)
Depth
6.0 km below the surface
Felt
661 reports · strongest reported intensity VI
Measured shaking
intensity VI (ShakeMap)
USGS impact alert
yellow
Nearest
Guánica Municipio, 14 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 280 days ago

This was a moderate earthquake. Shaking at this size can damage poorly built structures close to the epicentre. 661 people have reported feeling it to USGS.

How big was it?

This earthquake released about 7.6 kilotons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 6.8 would have released about 32 times as much.

  1. Ridgecrest, California 2019 M 7.1 89× the energy of this one
  2. Loma Prieta, California 1989 M 6.9 45× the energy of this one
  3. Northridge, California 1994 M 6.7 22× the energy of this one
  4. This earthquake M 5.8 about 7.6 kilotons of TNT
  5. Magna, Utah 2020 M 5.7 this one released 1.4× more
  6. Around the size people start to feel M 3.0 this one released 16,000× 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 17.8675, -66.8193. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Guánica Municipio, PR 14 km (9 mi) SE of here earthquakes near Guánica Municipio
Guayanilla Municipio, PR 15 km (10 mi) S of here earthquakes near Guayanilla Municipio
Peñuelas Municipio, PR 20 km (13 mi) SSW of here earthquakes near Peñuelas Municipio
Yauco Municipio, PR 25 km (15 mi) S of here earthquakes near Yauco Municipio
Lajas Municipio, PR 26 km (16 mi) ESE of here earthquakes near Lajas Municipio
Ponce Municipio, PR 27 km (17 mi) WSW of here earthquakes near Ponce 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. 1.5 1 km NW of Palomas, Puerto Rico
  2. 1.7 8 km SSE of Guánica, Puerto Rico
  3. 2.3 8 km S of Indios, Puerto Rico
  4. 2.1 6 km SSE of Guánica, Puerto Rico
  5. 2.0 8 km SSE of Indios, Puerto Rico
  6. 2.5 13 km SSE of Indios, Puerto Rico
  7. 2.6 5 km SSW of Indios, Puerto Rico
  8. 2.4 13 km S of Indios, Puerto Rico
  9. 2.6 10 km SSE of Indios, Puerto Rico
  10. 3.5 9 km SSE of Indios, Puerto Rico
  11. 2.1 6 km S of Indios, Puerto Rico
  12. 3.0 Puerto Rico region
  13. 2.0 5 km S of Guánica, Puerto Rico
  14. 1.7 4 km SSE of Maria Antonia, Puerto Rico
  15. 2.1 11 km SSE of Indios, 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 5.0 on 2019-12-29.

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

On USGS

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