QuakeIndex

Earthquake · reviewed by a seismologist

M 3.2md

Mona Passage

Yes. A magnitude 3.2 earthquake was recorded in Mona Passage, 60 km (37 mi) WNW of Mayagüez, PR, at 10:19 pm AST on 25 April 2017 (02:19 UTC), 92 km deep.

60 km (37 mi) WNW of Mayagüez, PR · 118 km (74 mi) WNW of Ponce, PR

· 92 km deep · released about 1,700 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Rincón Municipio 43 kmAguada Municipio 48 kmMayagüez Municipio 51 kmAguadilla Municipio 51 kmAñasco Municipio 56 kmMoca Municipio 59 kmIsabela Municipio 65 kmHormigueros Municipio 66 kmCabo Rojo Municipio 71 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 3.2 (md)
Depth
92 km below the surface
Felt
no reports yet
Nearest
Rincón Municipio, 43 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3401 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

At this magnitude and depth it was probably too small to be felt, even directly above it. Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

How big was it?

This earthquake released about 1,700 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.2 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 200,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 8,800× the energy of this one
  3. Magna, Utah 2020 M 5.7 6,200× the energy of this one
  4. This earthquake M 3.2 about 1,700 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 1.8× 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 18.4705, -67.6296. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Rincón Municipio, PR 43 km (26 mi) ESE earthquakes near Rincón Municipio
Aguada Municipio, PR 48 km (30 mi) ESE earthquakes near Aguada Municipio
Mayagüez Municipio, PR 51 km (32 mi) SSW earthquakes near Mayagüez Municipio
Aguadilla Municipio, PR 51 km (32 mi) E earthquakes near Aguadilla Municipio
Añasco Municipio, PR 56 km (35 mi) ESE earthquakes near Añasco Municipio
Moca Municipio, PR 59 km (37 mi) E earthquakes near Moca Municipio

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

Aftershocks so far

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

  1. 1.9 24 km SW of Stella, Puerto Rico
  2. 2.2 27 km NW of San Antonio, Puerto Rico
  3. 2.1 1 km SSE of Stella, Puerto Rico
  4. 2.0 16 km NW of Puerto Real, Puerto Rico
  5. 1.9 16 km SW of Stella, Puerto Rico
  6. 2.9 38 km WSW of Stella, Puerto Rico
  7. 2.9 24 km WNW of Rincón, Puerto Rico
  8. 2.7 32 km NW of Aguadilla, Puerto Rico
  9. 1.6 12 km SSW of Stella, Puerto Rico
  10. 2.7 Mona Passage
  11. 2.9 34 km NW of Rincón, Puerto Rico
  12. 2.4 55 km WSW of Stella, Puerto Rico
  13. 2.3 44 km WSW of Stella, Puerto Rico
  14. 2.3 51 km NW of San Antonio, Puerto Rico
  15. 2.0 Mona Passage

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.