QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5md

138 km NNE of Suárez, Puerto Rico

· 47 km deep · released about 150 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 2.5 (md)
Depth
47 km below the surface
Felt
no reports yet
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2626 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 150 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 99,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 70,000× the energy of this one
  3. Around the size people start to feel M 3.0 6.2× the energy of this one
  4. This earthquake M 2.5 about 150 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 19.6436, -65.5490. Map © OpenStreetMap contributors.

Aftershocks so far

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

  1. 3.7 132 km NNE of Vieques, Puerto Rico
  2. 3.4 101 km NNE of Suárez, Puerto Rico
  3. 3.5 106 km NNE of Vieques, Puerto Rico
  4. 2.6 Puerto Rico region
  5. 3.7 128 km NNE of Vieques, Puerto Rico
  6. 3.4 120 km NNE of Vieques, Puerto Rico
  7. 2.7 124 km NNE of Vieques, Puerto Rico
  8. 3.7 124 km NNE of Vieques, Puerto Rico
  9. 3.7 141 km NNE of Vieques, Puerto Rico
  10. 3.6 114 km NNE of Vieques, Puerto Rico
  11. 3.9 143 km NNE of Vieques, Puerto Rico
  12. 3.6 109 km NNE of Vieques, Puerto Rico
  13. 3.8 136 km NNE of Vieques, Puerto Rico
  14. 3.8 141 km NNE of Vieques, Puerto Rico
  15. 3.6 139 km NNE of Vieques, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.9 on 2018-11-14 — it released about 4,400 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.