QuakeIndex

Earthquake · reviewed by a seismologist

M 3.1md

122 km SSE of Boca de Yuma, Dominican Republic

· 28 km deep · released about 1,200 lb of TNT

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10 km30 km60 km120 km N Mayagüez Municipio 101 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 3.1 (md)
Depth
28 km below the surface
Felt
no reports yet
Nearest
Mayagüez Municipio, 101 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2388 days ago

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

How big was it?

This earthquake released about 1,200 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.1 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 290,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 13,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 9,100× the energy of this one
  4. This earthquake M 3.1 about 1,200 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 1.2× 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 17.2985, -68.3718. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mayagüez Municipio, PR 101 km (63 mi) SSW of here earthquakes near Mayagüez Municipio
Rincón Municipio, PR 166 km (103 mi) SW of here earthquakes near Rincón Municipio

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

Aftershocks so far

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

  1. 3.6 95 km S of Boca de Yuma, Dominican Republic
  2. 3.7 110 km SW of Pole Ojea, Puerto Rico
  3. 4.7 106 km WSW of Pole Ojea, Puerto Rico
  4. 3.4 89 km SSE of Boca de Yuma, Dominican Republic
  5. 3.9 123 km SSE of Boca de Yuma, Dominican Republic
  6. 2.7 115 km S of Boca de Yuma, Dominican Republic
  7. 3.8 134 km S of Boca de Yuma, Dominican Republic
  8. 3.3 85 km SSE of Boca de Yuma, Dominican Republic
  9. 4.3 102 km WSW of Pole Ojea, Puerto Rico
  10. 3.3 99 km SE of Boca de Yuma, Dominican Republic
  11. 3.6 83 km SSE of Boca de Yuma, Dominican Republic
  12. 3.4 103 km WSW of Pole Ojea, Puerto Rico
  13. 3.1 140 km SSE of Boca de Yuma, Dominican Republic
  14. 3.9 98 km SW of Pole Ojea, Puerto Rico
  15. 3.8 150 km SSE of Boca de Yuma, 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.

On USGS

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