Earthquake · reviewed by a seismologist
M 2.9md
8 km WNW of Culebra, Puerto Rico
- When
- Magnitude
- M 2.9 (md)
- Depth
- 18 km below the surface
- Felt
- no reports yet
- Nearest
- Culebra Municipio, 7 km E
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2 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 720 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.9 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 21,000× the energy of this one
- Magna, Utah 2020 M 5.7 15,000× the energy of this one
- Around the size people start to feel M 3.0 1.3× the energy of this one
- This earthquake M 2.9 about 720 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 18.3362, -65.3772. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Culebra Municipio, PR | 7 km (5 mi) | W of here | earthquakes near Culebra Municipio |
| Fajardo Municipio, PR | 23 km (14 mi) | ESE of here | earthquakes near Fajardo Municipio |
| Vieques Municipio, PR | 24 km (15 mi) | NNE of here | earthquakes near Vieques Municipio |
| Ceiba Municipio, PR | 27 km (17 mi) | ENE of here | earthquakes near Ceiba Municipio |
| Luquillo Municipio, PR | 35 km (22 mi) | E of here | earthquakes near Luquillo Municipio |
| Naguabo Municipio, PR | 40 km (25 mi) | ENE of here | earthquakes near Naguabo Municipio |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
No further earthquakes have been recorded within 50 km since this one.
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 2021-10-08 — it released about 660 times the energy of this one.
From the QuakeIndex catalogue, built from the USGS FDSN event service.
On USGS
- The official USGS event page — the source of record for every value above
- Did you feel it? Report it to USGS — reports go to USGS, not to us
- ShakeMap for this event, when USGS has produced one
QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.