QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0md

26 km N of Hatillo, Puerto Rico

· 10.0 km deep · released about 1,000 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Hatillo Municipio 31 kmCamuy Municipio 32 kmQuebradillas Municipio 32 kmArecibo Municipio 34 kmIsabela Municipio 36 kmBarceloneta Municipio 36 kmManatí Municipio 43 kmFlorida Municipio 45 kmAguadilla Municipio 47 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 3.0 (md)
Depth
10.0 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Hatillo Municipio, 31 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 498 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 1,000 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.0 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 330,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 15,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 10,000× the energy of this one
  4. This earthquake M 3.0 about 1,000 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 18.7205, -66.7807. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Hatillo Municipio, PR 31 km (19 mi) N of here earthquakes near Hatillo Municipio
Camuy Municipio, PR 32 km (20 mi) NNE of here earthquakes near Camuy Municipio
Quebradillas Municipio, PR 32 km (20 mi) NNE of here earthquakes near Quebradillas Municipio
Arecibo Municipio, PR 34 km (21 mi) NNW of here earthquakes near Arecibo Municipio
Isabela Municipio, PR 36 km (22 mi) NE of here earthquakes near Isabela Municipio
Barceloneta Municipio, PR 36 km (23 mi) NW of here earthquakes near Barceloneta Municipio

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

Aftershocks so far

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

  1. 3.2 57 km N of Isabela, Puerto Rico
  2. 2.5 13 km N of Quebradillas, Puerto Rico
  3. 3.2 45 km N of Carrizales, Puerto Rico
  4. 3.2 15 km NNW of San Antonio, Puerto Rico
  5. 3.2 6 km NNW of Arecibo, Puerto Rico
  6. 2.8 69 km N of Tierras Nuevas Poniente, Puerto Rico
  7. 3.2 13 km NNW of Brenas, Puerto Rico
  8. 3.0 14 km N of Carrizales, Puerto Rico
  9. 3.1 39 km N of Hatillo, Puerto Rico
  10. 2.6 18 km NNE of Isabela, Puerto Rico
  11. 3.2 65 km N of Tierras Nuevas Poniente, Puerto Rico
  12. 3.1 40 km N of Brenas, Puerto Rico
  13. 2.6 31 km N of Brenas, Puerto Rico
  14. 2.8 21 km N of San Antonio, Puerto Rico
  15. 2.7 3 km N 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 4.7 on 2017-07-17 — it released about 290 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.