QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0md

94 km S of Central Aguirre, Puerto Rico

· 98 km deep · released about 860 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Santa Isabel Municipio 95 kmSalinas Municipio 97 kmGuayama Municipio 99 kmArroyo Municipio 101 kmJuana Díaz Municipio 102 kmPonce Municipio 105 kmPatillas Municipio 106 kmMaunabo Municipio 109 kmCoamo Municipio 112 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 3.0 (md)
Depth
98 km below the surface
Felt
no reports yet
Nearest
Santa Isabel Municipio, 95 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3134 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 860 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 6.7 390,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 18,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 12,000× the energy of this one
  4. This earthquake M 3.0 about 860 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 17.0995, -66.3113. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Santa Isabel Municipio, PR 95 km (59 mi) S of here earthquakes near Santa Isabel Municipio
Salinas Municipio, PR 97 km (60 mi) S of here earthquakes near Salinas Municipio
Guayama Municipio, PR 99 km (61 mi) S of here earthquakes near Guayama Municipio
Arroyo Municipio, PR 101 km (63 mi) SSW of here earthquakes near Arroyo Municipio
Juana Díaz Municipio, PR 102 km (63 mi) S of here earthquakes near Juana Díaz Municipio
Ponce Municipio, PR 105 km (65 mi) SSE of here earthquakes near Ponce Municipio

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

Aftershocks so far

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

  1. 2.8 49 km S of Central Aguirre, Puerto Rico
  2. 2.9 64 km SSW of Santa Isabel, Puerto Rico
  3. 3.1 60 km S of Santa Isabel, Puerto Rico
  4. 3.4 55 km SSW of Santa Isabel, Puerto Rico
  5. 3.2 58 km S of Jobos, Puerto Rico
  6. 2.3 68 km S of Santa Isabel, Puerto Rico
  7. 2.6 65 km S of Arroyo, Puerto Rico
  8. 2.6 55 km S of Jobos, Puerto Rico
  9. 2.9 84 km S of Jobos, Puerto Rico
  10. 2.6 79 km S of Tallaboa, 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.