QuakeIndex

Earthquake · reviewed by a seismologist

M 4.3Ml

27 km ESE of El Negro, Puerto Rico

· 11 km deep · released about 43 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Yabucoa Municipio 29 kmMaunabo Municipio 29 kmHumacao Municipio 30 kmVieques Municipio 33 kmNaguabo Municipio 36 kmPatillas Municipio 38 kmCeiba Municipio 39 kmLas Piedras Municipio 40 kmArroyo Municipio 43 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 4.3 (Ml)
Depth
11 km below the surface
Felt
29 reports · strongest reported intensity IV
Tsunami
USGS flagged this event for tsunami evaluation. Follow tsunami.gov for official messages.
Nearest
Yabucoa Municipio, 29 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3585 days ago

This was a light earthquake. It is usually felt clearly nearby and can rattle windows and dishes, but damage is uncommon. 29 people have reported feeling it to USGS.

How big was it?

This earthquake released about 43 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 5.3 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 4,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 180× the energy of this one
  3. Magna, Utah 2020 M 5.7 130× the energy of this one
  4. This earthquake M 4.3 about 43 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 89× 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 17.9020, -65.6384. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Yabucoa Municipio, PR 29 km (18 mi) SE of here earthquakes near Yabucoa Municipio
Maunabo Municipio, PR 29 km (18 mi) ESE of here earthquakes near Maunabo Municipio
Humacao Municipio, PR 30 km (19 mi) SSE of here earthquakes near Humacao Municipio
Vieques Municipio, PR 33 km (21 mi) SW of here earthquakes near Vieques Municipio
Naguabo Municipio, PR 36 km (22 mi) SSE of here earthquakes near Naguabo Municipio
Patillas Municipio, PR 38 km (24 mi) ESE of here earthquakes near Patillas Municipio

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

Aftershocks so far

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

  1. 2.7 30 km SE of El Negro, Puerto Rico
  2. 2.7 27 km SE of El Negro, Puerto Rico
  3. 2.7 27 km SE of El Negro, Puerto Rico
  4. 2.3 29 km SE of El Negro, Puerto Rico
  5. 2.4 28 km SE of El Negro, Puerto Rico
  6. 2.1 13 km SSE of Esperanza, Puerto Rico
  7. 2.2 28 km SE of El Negro, Puerto Rico
  8. 2.7 28 km SE of El Negro, Puerto Rico
  9. 2.8 28 km SE of El Negro, Puerto Rico
  10. 2.1 15 km SE of El Negro, Puerto Rico
  11. 2.6 29 km SE of El Negro, Puerto Rico
  12. 2.3 28 km SE of El Negro, Puerto Rico
  13. 2.1 29 km SE of El Negro, Puerto Rico
  14. 2.1 28 km SE of El Negro, Puerto Rico
  15. 2.3 27 km SE of El Negro, 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.