QuakeIndex

Earthquake · reviewed by a seismologist

M 4.0md

140 km SSE of Boca de Yuma, Dominican Republic

· 57 km deep · released about 14 tons of TNT

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10 km30 km60 km120 km N Mayagüez Municipio 109 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 4.0 (md)
Depth
57 km below the surface
Felt
no reports yet
Nearest
Mayagüez Municipio, 109 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1583 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 14 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 5.0 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 12,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 560× the energy of this one
  3. Magna, Utah 2020 M 5.7 390× the energy of this one
  4. This earthquake M 4.0 about 14 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 29× 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 17.1625, -68.2320. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mayagüez Municipio, PR 109 km (68 mi) SSW of here earthquakes near Mayagüez Municipio
Cabo Rojo Municipio, PR 145 km (90 mi) SW of here earthquakes near Cabo Rojo Municipio
Hormigueros Municipio, PR 160 km (100 mi) SW of here earthquakes near Hormigueros Municipio

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

Aftershocks so far

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

  1. 3.7 110 km SW of Pole Ojea, Puerto Rico
  2. 3.4 105 km SW of Pole Ojea, Puerto Rico
  3. 4.7 106 km WSW of Pole Ojea, Puerto Rico
  4. 3.9 123 km SSE of Boca de Yuma, Dominican Republic
  5. 2.7 115 km S of Boca de Yuma, Dominican Republic
  6. 3.8 134 km S of Boca de Yuma, Dominican Republic
  7. 3.5 94 km SW of Pole Ojea, Puerto Rico
  8. 3.6 96 km SW of Pole Ojea, Puerto Rico
  9. 4.3 102 km WSW of Pole Ojea, Puerto Rico
  10. 3.1 95 km SW of Pole Ojea, Puerto Rico
  11. 3.4 103 km WSW of Pole Ojea, Puerto Rico
  12. 3.1 140 km SSE of Boca de Yuma, Dominican Republic
  13. 3.9 98 km SW of Pole Ojea, Puerto Rico
  14. 3.8 150 km SSE of Boca de Yuma, Dominican Republic
  15. 3.4 127 km SW of Pole Ojea, 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

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