QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0md

26 km WSW of Stella, Puerto Rico

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

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Rincón Municipio 27 kmAguada Municipio 35 kmAñasco Municipio 37 kmHormigueros Municipio 39 kmCabo Rojo Municipio 40 kmMoca Municipio 45 kmAguadilla Municipio 45 kmMayagüez Municipio 46 kmSan Germán Municipio 48 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
5.5 km below the surface
Felt
2 reports · strongest reported intensity III
Nearest
Rincón Municipio, 27 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1516 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 2 people have 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 18.2212, -67.4758. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Rincón Municipio, PR 27 km (17 mi) WSW of here earthquakes near Rincón Municipio
Aguada Municipio, PR 35 km (22 mi) WSW of here earthquakes near Aguada Municipio
Añasco Municipio, PR 37 km (23 mi) WSW of here earthquakes near Añasco Municipio
Hormigueros Municipio, PR 39 km (24 mi) WNW of here earthquakes near Hormigueros Municipio
Cabo Rojo Municipio, PR 40 km (25 mi) NW of here earthquakes near Cabo Rojo Municipio
Moca Municipio, PR 45 km (28 mi) WSW of here earthquakes near Moca Municipio

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

Aftershocks so far

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

  1. 2.8 5 km SW of Mayagüez, Puerto Rico
  2. 3.3 53 km WSW of Stella, Puerto Rico
  3. 3.4 Mona Passage
  4. 2.5 6 km ENE of Hormigueros, Puerto Rico
  5. 3.0 14 km WNW of Rincón, Puerto Rico
  6. 3.5 14 km WNW of Rincón, Puerto Rico
  7. 2.4 1 km E of Cabo Rojo, Puerto Rico
  8. 3.7 52 km WSW of Stella, Puerto Rico
  9. 2.2 4 km WSW of Hormigueros, Puerto Rico
  10. 2.7 2 km NW of Cabo Rojo, Puerto Rico
  11. 2.9 5 km SSE of Pole Ojea, Puerto Rico
  12. 2.2 4 km E of Hormigueros, 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 4.4 on 2017-10-01 — it released about 120 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.