QuakeIndex

Earthquake · reviewed by a seismologist

M 6.0mw

67 km NNW of San Antonio, Puerto Rico

· 10 km deep · released about 15 kilotons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Aguadilla Municipio 68 kmIsabela Municipio 71 kmQuebradillas Municipio 77 kmAguada Municipio 78 kmMoca Municipio 80 kmRincón Municipio 82 kmCamuy Municipio 82 kmHatillo Municipio 86 kmSan Sebastián Municipio 89 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 6.0 (mw)
Depth
10 km below the surface
Felt
665 reports · strongest reported intensity V
Measured shaking
intensity IV (ShakeMap)
USGS impact alert
green
Tsunami
USGS flagged this event for tsunami evaluation. Follow tsunami.gov for official messages.
Nearest
Aguadilla Municipio, 68 km SSE
Status
Reviewed by a seismologist

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

This was a strong earthquake. Damage is likely near the epicentre and it is felt over a wide area. 665 people have reported feeling it to USGS.

How big was it?

This earthquake released about 15 kilotons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 7.0 would have released about 32 times as much.

  1. Ridgecrest, California 2019 M 7.1 45× the energy of this one
  2. Loma Prieta, California 1989 M 6.9 22× the energy of this one
  3. Northridge, California 1994 M 6.7 11× the energy of this one
  4. This earthquake M 6.0 about 15 kilotons of TNT
  5. Mineral, Virginia 2011 M 5.8 this one released 2× more
  6. Magna, Utah 2020 M 5.7 this one released 2.8× 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 19.0770, -67.2701. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Aguadilla Municipio, PR 68 km (42 mi) NNW of here earthquakes near Aguadilla Municipio
Isabela Municipio, PR 71 km (44 mi) NNW of here earthquakes near Isabela Municipio
Quebradillas Municipio, PR 77 km (48 mi) NNW of here earthquakes near Quebradillas Municipio
Aguada Municipio, PR 78 km (49 mi) N of here earthquakes near Aguada Municipio
Moca Municipio, PR 80 km (50 mi) NNW of here earthquakes near Moca Municipio
Rincón Municipio, PR 82 km (51 mi) N of here earthquakes near Rincón Municipio

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

Aftershocks so far

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

  1. 2.5 75 km N of San Antonio, Puerto Rico
  2. 2.8 62 km NNW of San Antonio, Puerto Rico
  3. 3.0 77 km NNW of San Antonio, Puerto Rico
  4. 3.1 79 km NNW of San Antonio, Puerto Rico
  5. 2.5 56 km N of Hatillo, Puerto Rico
  6. 2.8 73 km N of Isabela, Puerto Rico
  7. 2.7 76 km N of Isabela, Puerto Rico
  8. 2.5 64 km N of Isabela, Puerto Rico
  9. 2.7 78 km N of Isabela, Puerto Rico
  10. 3.0 56 km NNW of San Antonio, Puerto Rico
  11. 2.8 74 km NW of San Antonio, Puerto Rico
  12. 2.7 49 km N of San Antonio, Puerto Rico
  13. 2.5 Puerto Rico region
  14. 3.2 76 km N of San Antonio, Puerto Rico
  15. 2.9 52 km NNW of San Antonio, 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 4.2 on 2017-08-27.

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

On USGS

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