QuakeIndex

Earthquake · reviewed by a seismologist

M 4.0Ml

61 km N of Hatillo, Puerto Rico

· 36 km deep · released about 15 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Barceloneta Municipio 66 kmQuebradillas Municipio 67 kmHatillo Municipio 67 kmCamuy Municipio 67 kmArecibo Municipio 68 kmIsabela Municipio 68 kmManatí Municipio 71 kmVega Baja Municipio 74 kmAguadilla Municipio 75 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 4.0 (Ml)
Depth
36 km below the surface
Felt
4 reports · strongest reported intensity III
Nearest
Barceloneta Municipio, 66 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3394 days ago

This was a light earthquake. It is usually felt clearly nearby and can rattle windows and dishes, but damage is uncommon. 4 people have reported feeling it to USGS.

How big was it?

This earthquake released about 15 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 5.0 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 11,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 500× the energy of this one
  3. Magna, Utah 2020 M 5.7 350× the energy of this one
  4. This earthquake M 4.0 about 15 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 32× 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 19.0387, -66.7386. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Barceloneta Municipio, PR 66 km (41 mi) NNW of here earthquakes near Barceloneta Municipio
Quebradillas Municipio, PR 67 km (41 mi) NNE of here earthquakes near Quebradillas Municipio
Hatillo Municipio, PR 67 km (41 mi) N of here earthquakes near Hatillo Municipio
Camuy Municipio, PR 67 km (42 mi) N of here earthquakes near Camuy Municipio
Arecibo Municipio, PR 68 km (42 mi) N of here earthquakes near Arecibo Municipio
Isabela Municipio, PR 68 km (42 mi) NNE of here earthquakes near Isabela Municipio

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

Aftershocks so far

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

  1. 3.0 62 km N of Brenas, Puerto Rico
  2. 2.8 16 km N of Carrizales, Puerto Rico
  3. 2.5 44 km N of Garrochales, Puerto Rico
  4. 3.0 Puerto Rico region
  5. 2.2 Puerto Rico region
  6. 2.8 70 km N of Isabela, Puerto Rico
  7. 2.8 69 km N of Hatillo, Puerto Rico
  8. 2.5 55 km N of Hatillo, Puerto Rico
  9. 2.6 65 km N of San Antonio, Puerto Rico
  10. 3.4 88 km N of Hatillo, Puerto Rico
  11. 2.8 70 km N of Tierras Nuevas Poniente, Puerto Rico
  12. 3.0 79 km N of Isabela, Puerto Rico
  13. 3.1 80 km N of Isabela, Puerto Rico
  14. 2.8 Mona Passage
  15. 2.6 66 km N of Hatillo, 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.

On USGS

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