QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8ml

143 km SW of Pole Ojea, Puerto Rico

· 10 km deep · released about 480 lb of TNT

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10 km30 km60 km120 km N Mayagüez Municipio 114 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 2.8 (ml)
Depth
10 km below the surface
Felt
no reports yet
Nearest
Mayagüez Municipio, 114 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2136 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 480 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 32,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 22,000× the energy of this one
  3. Around the size people start to feel M 3.0 2× the energy of this one
  4. This earthquake M 2.8 about 480 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 17.0959, -68.1805. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mayagüez Municipio, PR 114 km (71 mi) SSW of here earthquakes near Mayagüez Municipio
Cabo Rojo Municipio, PR 146 km (91 mi) SW of here earthquakes near Cabo Rojo Municipio
Hormigueros Municipio, PR 161 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

19 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. 3.1 95 km SW of Pole Ojea, Puerto Rico
  10. 3.1 140 km SSE of Boca de Yuma, Dominican Republic
  11. 3.9 98 km SW of Pole Ojea, Puerto Rico
  12. 3.8 150 km SSE of Boca de Yuma, Dominican Republic
  13. 3.4 127 km SW of Pole Ojea, Puerto Rico
  14. 3.6 106 km SW of Pole Ojea, Puerto Rico
  15. 4.0 140 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

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