QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6Md

Earthquake near Mayagüez, PR

No earthquake was likely felt in Mayagüez in the 24 hours to 12:39 am AST (04:39 UTC). The last one was M 2.9, 25 km (15 mi) SSE, at 3:17 am AST on 8 November 2026, estimated intensity II (weak) in town. Every earthquake near Mayagüez

This page: a magnitude 2.6 earthquake was recorded 37 km (23 mi) west of Mayagüez, PR, at 11:08 am AST on 3 March 2017 (15:08 UTC), 22 km deep.

USGS: 30 km SW of Stella, Puerto Rico

93 km (57 mi) W of Ponce, PR · 36 km (23 mi) W of Mayagüez, PR

11:08 am AST, Mar 3, 2017 · · 22 km deep · released about 240 lb of TNT

Every earthquake near Mayagüez Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Rincón Municipio 32 kmCabo Rojo Municipio 37 kmHormigueros Municipio 39 kmAguada Municipio 40 kmAñasco Municipio 40 kmMayagüez Municipio 43 kmSan Germán Municipio 47 kmMoca Municipio 49 kmAguadilla Municipio 51 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
11:08 am AST on 3 March 2017 ()
Where
37 km (23 mi) west of Mayagüez, PR · earthquakes near Mayagüez
Magnitude
M 2.6 (Md)
Depth
22 km below the surface
Felt
no reports yet
Nearest
Rincón Municipio, 32 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3540 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, people at rest would likely notice it out to about 9 km (6 mi) from the epicentre. In Mayagüez, 37 km away, the estimate is intensity II (weak). 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 240 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 63,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 45,000× the energy of this one
  3. Around the size people start to feel M 3.0 4× the energy of this one
  4. This earthquake M 2.6 about 240 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.

For this area

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record lists 3 earthquakes of M5 or more within 50 km:

  1. 6.3 6 km WNW of Aguadilla, Puerto Rico · 42 km NE of this epicentre
  2. 5.2 19 km SW of Stella, Puerto Rico · 12 km ENE of this epicentre
  3. 5.1 21 km SW of Stella, Puerto Rico · 12 km E of this epicentre

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 18.1588, -67.4828. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Rincón Municipio, PR 32 km (20 mi) NE earthquakes near Rincón Municipio
Cabo Rojo Municipio, PR 37 km (23 mi) ESE earthquakes near Cabo Rojo Municipio
Hormigueros Municipio, PR 39 km (24 mi) E earthquakes near Hormigueros Municipio
Aguada Municipio, PR 40 km (25 mi) NE earthquakes near Aguada Municipio
Añasco Municipio, PR 40 km (25 mi) ENE earthquakes near Añasco Municipio
Mayagüez Municipio, PR 43 km (27 mi) W earthquakes near Mayagüez 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. 1.6 3 km ENE of Pole Ojea, Puerto Rico
  2. 2.0 3 km SSE of Boquerón, Puerto Rico
  3. 3.0 17 km W of Stella, Puerto Rico
  4. 2.2 1 km SSW of Puerto Real, Puerto Rico
  5. 2.7 1 km NW of Monte Grande, Puerto Rico
  6. 2.1 1 km W of Palmarejo, Puerto Rico
  7. 1.7 6 km NNE of San Germán, Puerto Rico
  8. 2.1 10 km S of Pole Ojea, Puerto Rico
  9. 2.7 10 km NW of Puerto Real, Puerto Rico
  10. 2.4 17 km SSW of Stella, Puerto Rico
  11. 1.9 10 km WNW of Puerto Real, Puerto Rico
  12. 2.5 Mona Passage
  13. 2.8 36 km W of Rincón, Puerto Rico
  14. 2.4 9 km S of Pole Ojea, Puerto Rico
  15. 2.3 2 km NNE of Mayagüez, 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.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.