QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0md

4 km SE of Rafael Capo, Puerto Rico

· 128 km deep · released about 800 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Hatillo Municipio 8 kmArecibo Municipio 10 kmUtuado Municipio 14 kmCamuy Municipio 14 kmLares Municipio 17 kmFlorida Municipio 20 kmQuebradillas Municipio 21 kmBarceloneta Municipio 22 kmAdjuntas Municipio 23 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
128 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Hatillo Municipio, 8 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1509 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 800 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 6.7 420,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 19,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 13,000× the energy of this one
  4. This earthquake M 3.0 about 800 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 18.3842, -66.7512. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Hatillo Municipio, PR 8 km (5 mi) SE of here earthquakes near Hatillo Municipio
Arecibo Municipio, PR 10 km (6 mi) SW of here earthquakes near Arecibo Municipio
Utuado Municipio, PR 14 km (8 mi) NNW of here earthquakes near Utuado Municipio
Camuy Municipio, PR 14 km (8 mi) ESE of here earthquakes near Camuy Municipio
Lares Municipio, PR 17 km (11 mi) NE of here earthquakes near Lares Municipio
Florida Municipio, PR 20 km (12 mi) W of here earthquakes near Florida Municipio

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

Aftershocks so far

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

  1. 3.1 3 km SW of Indios, Puerto Rico
  2. 3.5 3 km S of Animas, Puerto Rico
  3. 2.3 2 km SW of Indios, Puerto Rico
  4. 1.7 3 km SSW of Indios, Puerto Rico
  5. 2.7 13 km N of Isabela, Puerto Rico
  6. 2.1 1 km NW of Indios, Puerto Rico
  7. 2.3 4 km ESE of Maria Antonia, Puerto Rico
  8. 1.9 2 km WSW of Indios, Puerto Rico
  9. 2.0 2 km WSW of Indios, Puerto Rico
  10. 2.7 16 km NE of Arecibo, Puerto Rico
  11. 1.9 4 km S of Indios, Puerto Rico
  12. 2.3 3 km SW of Indios, Puerto Rico
  13. 1.9 2 km WSW of Indios, Puerto Rico
  14. 2.0 2 km W of Indios, Puerto Rico
  15. 2.7 4 km SE of Las Marías, 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 6.4 on 2020-01-07 — it released about 150,000 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.