QuakeIndex

Earthquake · reviewed by a seismologist

M 4.7md

106 km WSW of Pole Ojea, Puerto Rico

· 24 km deep · released about 150 tons of TNT

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10 km30 km60 km120 km N Mayagüez Municipio 65 kmCabo Rojo Municipio 108 kmLajas Municipio 120 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 4.7 (md)
Depth
24 km below the surface
Felt
2 reports · strongest reported intensity IV
Nearest
Mayagüez Municipio, 65 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 150 days ago

This was a light earthquake. It is usually felt clearly nearby and can rattle windows and dishes, but damage is uncommon. 2 people have reported feeling it to USGS.

How big was it?

This earthquake released about 150 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 5.7 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 1,100× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 50× the energy of this one
  3. Magna, Utah 2020 M 5.7 35× the energy of this one
  4. This earthquake M 4.7 about 150 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 320× 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 17.5233, -68.0666. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mayagüez Municipio, PR 65 km (41 mi) SSW of here earthquakes near Mayagüez Municipio
Cabo Rojo Municipio, PR 108 km (67 mi) WSW of here earthquakes near Cabo Rojo Municipio
Lajas Municipio, PR 120 km (75 mi) WSW of here earthquakes near Lajas Municipio
Hormigueros Municipio, PR 121 km (75 mi) SW of here earthquakes near Hormigueros Municipio
Rincón Municipio, PR 125 km (78 mi) SW of here earthquakes near Rincón Municipio
San Germán Municipio, PR 127 km (79 mi) WSW 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

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

  1. 3.3 64 km SW of Pole Ojea, Puerto Rico
  2. 3.7 110 km SW of Pole Ojea, Puerto Rico
  3. 3.4 105 km SW of Pole Ojea, Puerto Rico
  4. 3.4 86 km SW of Pole Ojea, Puerto Rico
  5. 3.3 79 km SE of Boca de Yuma, Dominican Republic
  6. 3.4 61 km SSE of Boca de Yuma, Dominican Republic
  7. 3.9 81 km SE of Boca de Yuma, Dominican Republic
  8. 3.3 83 km SE 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.8 on 2024-08-26 — it released about 1.6 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

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