QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0md

120 km SSW of Pole Ojea, Puerto Rico

· 28 km deep · released about 1,100 lb of TNT

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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 3.0 (md)
Depth
28 km below the surface
Felt
no reports yet
Nearest
Mayagüez Municipio, 120 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 798 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 1,100 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.0 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 310,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 14,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 9,800× the energy of this one
  4. This earthquake M 3.0 about 1,100 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 17.0135, -67.7093. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mayagüez Municipio, PR 120 km (75 mi) S of here earthquakes near Mayagüez Municipio
Cabo Rojo Municipio, PR 123 km (76 mi) SSW of here earthquakes near Cabo Rojo Municipio
Lajas Municipio, PR 129 km (80 mi) SSW of here earthquakes near Lajas Municipio
Guánica Municipio, PR 133 km (83 mi) SW of here earthquakes near Guánica Municipio
Sabana Grande Municipio, PR 144 km (89 mi) SW of here earthquakes near Sabana Grande Municipio
Guayanilla Municipio, PR 147 km (91 mi) SW of here earthquakes near Guayanilla Municipio

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

Aftershocks so far

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

  1. 3.4 105 km SW of Pole Ojea, Puerto Rico
  2. 3.2 94 km SSW of Pole Ojea, Puerto Rico
  3. 3.4 86 km SW of Pole Ojea, Puerto Rico
  4. 3.0 83 km SSW of Pole Ojea, Puerto Rico
  5. 3.5 94 km SW of Pole Ojea, Puerto Rico
  6. 3.6 96 km SW of Pole Ojea, Puerto Rico
  7. 3.1 95 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

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