QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8md

31 km WNW of Rincón, Puerto Rico

· 17 km deep · released about 16 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Rincón Municipio 32 kmAguada Municipio 37 kmAguadilla Municipio 41 kmAñasco Municipio 45 kmMoca Municipio 48 kmIsabela Municipio 54 kmMayagüez Municipio 55 kmHormigueros Municipio 56 kmSan Sebastián Municipio 60 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 1.8 (md)
Depth
17 km below the surface
Felt
1 report · strongest reported intensity III
Nearest
Rincón Municipio, 32 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2865 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 16 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 970,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 680,000× the energy of this one
  3. Around the size people start to feel M 3.0 61× the energy of this one
  4. This earthquake M 1.8 about 16 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 18.4456, -67.5276. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Rincón Municipio, PR 32 km (20 mi) WNW of here earthquakes near Rincón Municipio
Aguada Municipio, PR 37 km (23 mi) WNW of here earthquakes near Aguada Municipio
Aguadilla Municipio, PR 41 km (25 mi) W of here earthquakes near Aguadilla Municipio
Añasco Municipio, PR 45 km (28 mi) WNW of here earthquakes near Añasco Municipio
Moca Municipio, PR 48 km (30 mi) W of here earthquakes near Moca Municipio
Isabela Municipio, PR 54 km (34 mi) W of here earthquakes near Isabela Municipio

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

Aftershocks so far

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

  1. 2.6 48 km WSW of Stella, Puerto Rico
  2. 2.5 52 km W of Stella, Puerto Rico
  3. 2.3 36 km NW of Rincón, Puerto Rico
  4. 2.9 30 km WNW of Rincón, Puerto Rico
  5. 2.2 2 km NNE of La Playa, Puerto Rico
  6. 2.6 30 km NNW of San Antonio, Puerto Rico
  7. 2.4 28 km NW of Rincón, Puerto Rico
  8. 2.4 62 km ESE of Punta Cana, Dominican Republic
  9. 2.8 58 km SE of Punta Cana, Dominican Republic
  10. 3.0 65 km ESE of Punta Cana, Dominican Republic
  11. 2.4 43 km NW of San Antonio, Puerto Rico
  12. 2.5 49 km WSW of Stella, Puerto Rico
  13. 2.0 11 km WNW of Puerto Real, Puerto Rico
  14. 2.7 36 km W of Puerto Real, Puerto Rico
  15. 3.4 61 km SE of Punta Cana, Dominican Republic

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 7,700 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.