Earthquake · reviewed by a seismologist
M 2.9md
70 km W of Puerto Real, Puerto Rico
Yes. A magnitude 2.9 earthquake was recorded 70 km W of Puerto Real, Puerto Rico, at 2:24 am AST on 13 February 2018 (06:24 UTC), 128 km deep.
- When
- Magnitude
- M 2.9 (md)
- Depth
- 128 km below the surface
- Felt
- no reports yet
- Nearest
- Mayagüez Municipio, 6 km NNW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 3102 days ago
Earthquake alerts for Puerto Real, PR
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Alerts are on for .
Not a warning. An alert comes after USGS publishes a quake, usually minutes after the shaking. For early warning use ShakeAlert, through your phone's Wireless Emergency Alerts or the MyShake app.
This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.
At this magnitude and depth it was probably too small to be felt, even directly above it. Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.
How big was it?
This earthquake released about 570 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 27,000× the energy of this one
- Magna, Utah 2020 M 5.7 19,000× the energy of this one
- Around the size people start to feel M 3.0 1.7× the energy of this one
- This earthquake M 2.9 about 570 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.
For this area
The largest earthquake within 50 km since 2016 was M 4.3 on 2017-07-18 — about 150 times the energy of this one.
Before 2016, the USGS record since 1900 lists no earthquake of M5 or more within 50 km.
Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.
Where
Epicentre 18.0350, -67.8550. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Mayagüez Municipio, PR | 6 km (4 mi) | NNW | earthquakes near Mayagüez Municipio |
| Cabo Rojo Municipio, PR | 71 km (44 mi) | E | earthquakes near Cabo Rojo Municipio |
| Rincón Municipio, PR | 72 km (45 mi) | ENE | earthquakes near Rincón Municipio |
| Hormigueros Municipio, PR | 79 km (49 mi) | E | earthquakes near Hormigueros Municipio |
| Aguada Municipio, PR | 80 km (50 mi) | ENE | earthquakes near Aguada Municipio |
| Añasco Municipio, PR | 81 km (51 mi) | ENE | earthquakes near Añasco Municipio |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
38 earthquakes have been recorded within 50 km since this one.
- 2.9 56 km SE of Punta Cana, Dominican Republic
- 2.4 34 km W of Pole Ojea, Puerto Rico
- 2.3 37 km WSW of Stella, Puerto Rico
- 3.1 53 km W of Puerto Real, Puerto Rico
- 2.4 62 km SE of Boca de Yuma, Dominican Republic
- 3.2 59 km SE of Boca de Yuma, Dominican Republic
- 2.6 60 km SE of Boca de Yuma, Dominican Republic
- 3.0 61 km SE of Boca de Yuma, Dominican Republic
- 4.0 62 km SE of Boca de Yuma, Dominican Republic
- 2.9 64 km W of Rincón, Puerto Rico
- 3.2 65 km SE of Punta Cana, Dominican Republic
- 3.2 66 km SE of Boca de Yuma, Dominican Republic
- 3.3 52 km SE of Punta Cana, Dominican Republic
- 2.8 44 km SE of Punta Cana, Dominican Republic
- 2.8 69 km WSW of Stella, 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
- 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.