QuakeIndex

Earthquake · reviewed by a seismologist

M 3.5md

116 km SW of Pole Ojea, Puerto Rico

· 25 km deep · released about 3 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Mayagüez Municipio 98 kmCabo Rojo Municipio 119 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 3.5 (md)
Depth
25 km below the surface
Felt
no reports yet
Nearest
Mayagüez Municipio, 98 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2017 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 3 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.5 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 57,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 2,500× the energy of this one
  3. Magna, Utah 2020 M 5.7 1,800× the energy of this one
  4. This earthquake M 3.5 about 3 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 6.2× 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 17.2053, -67.9373. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mayagüez Municipio, PR 98 km (61 mi) S of here earthquakes near Mayagüez Municipio
Cabo Rojo Municipio, PR 119 km (74 mi) SW of here earthquakes near Cabo Rojo Municipio
Lajas Municipio, PR 128 km (80 mi) SW of here earthquakes near Lajas Municipio
Hormigueros Municipio, PR 135 km (84 mi) SW of here earthquakes near Hormigueros Municipio
Guánica Municipio, PR 136 km (84 mi) SW of here earthquakes near Guánica Municipio
San Germán Municipio, PR 138 km (86 mi) SW of here earthquakes near San Germán Municipio

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

Aftershocks so far

31 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. 3.4 86 km SW of Pole Ojea, Puerto Rico
  4. 4.7 106 km WSW of Pole Ojea, Puerto Rico
  5. 3.9 123 km SSE of Boca de Yuma, Dominican Republic
  6. 3.5 94 km SW of Pole Ojea, Puerto Rico
  7. 3.6 96 km SW of Pole Ojea, Puerto Rico
  8. 4.3 102 km WSW of Pole Ojea, Puerto Rico
  9. 3.2 90 km WSW of Pole Ojea, Puerto Rico
  10. 3.1 95 km SW of Pole Ojea, Puerto Rico
  11. 3.4 90 km WSW of Pole Ojea, Puerto Rico
  12. 3.4 89 km WSW of Pole Ojea, Puerto Rico
  13. 3.0 120 km SSW of Pole Ojea, Puerto Rico
  14. 3.4 103 km WSW of Pole Ojea, Puerto Rico
  15. 3.1 140 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

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