Earthquake · reviewed by a seismologist
M 1.9md
Earthquake near Santo Domingo, PR
No earthquake was likely felt in Santo Domingo in the 24 hours to 3:57 pm AST (19:57 UTC). The last one was M 2.1, 6 km (4 mi) SW, at 4:39 pm AST on 9 November 2026, estimated intensity II (weak) in town. Every earthquake near Santo Domingo
This page: a magnitude 1.9 earthquake was recorded 6 km (4 mi) north-northwest of Santo Domingo, PR, at 4:05 pm AST on 4 March 2024 (20:05 UTC), 8.1 km deep.
USGS: 5 km NNW of Santo Domingo, Puerto Rico
20 km (12 mi) NW of Ponce, PR
- When
- 4:05 pm AST on 4 March 2024 ()
- Where
- 6 km (4 mi) north-northwest of Santo Domingo, PR · earthquakes near Santo Domingo
- Magnitude
- M 1.9 (md)
- Depth
- 8.1 km below the surface
- Felt
- no reports yet
- Nearest
- Adjuntas Municipio, 8 km NNE
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 982 days ago
Earthquake alerts for Santo Domingo, PR
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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 minor earthquake. Quakes this small are rarely felt and do not cause damage.
At this magnitude and depth, people at rest would likely notice it out to about 12 km (7 mi) from the epicentre. In Santo Domingo, 6 km away, the estimate is intensity II (weak). 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.
Likely felt in: Adjuntas 8 km, intensity II · Tallaboa Alta 10 km, intensity II · Magas Arriba 10 km, intensity II · Guayanilla 10 km, intensity II · Yauco 12 km, intensity II. Estimated for each town centre; each link is that town's own record.
How big was it?
This earthquake released about 21 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 730,000× the energy of this one
- Magna, Utah 2020 M 5.7 520,000× the energy of this one
- Around the size people start to feel M 3.0 46× the energy of this one
- This earthquake M 1.9 about 21 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 6.4 on 2020-01-07 — about 5,800,000 times the energy of this one.
Before 2016, the USGS record lists one earthquake of M5 or more within 50 km:
- 5.8 4 km E of Moca, Puerto Rico · 45 km NW of this epicentre
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 18.1110, -66.7730. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Adjuntas Municipio, PR | 8 km (5 mi) | NNE | earthquakes near Adjuntas Municipio |
| Yauco Municipio, PR | 9 km (6 mi) | WSW | earthquakes near Yauco Municipio |
| Peñuelas Municipio, PR | 11 km (7 mi) | SSE | earthquakes near Peñuelas Municipio |
| Guayanilla Municipio, PR | 12 km (7 mi) | SSW | earthquakes near Guayanilla Municipio |
| Maricao Municipio, PR | 19 km (12 mi) | WNW | earthquakes near Maricao Municipio |
| Sabana Grande Municipio, PR | 19 km (12 mi) | W | earthquakes near Sabana Grande Municipio |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
52 earthquakes have been recorded within 50 km since this one.
- 1.6 3 km SE of Palomas, Puerto Rico
- 2.2 6 km WSW of Guánica, Puerto Rico
- 2.3 6 km WSW of Fuig, Puerto Rico
- 2.1 6 km SW of La Parguera, Puerto Rico
- 2.2 10 km SSE of Indios, Puerto Rico
- 2.8 3 km NW of Orocovis, Puerto Rico
- 1.7 3 km SW of La Parguera, Puerto Rico
- 2.3 3 km N of Guayanilla, Puerto Rico
- 2.2 2 km SW of Indios, Puerto Rico
- 1.8 4 km SSW of Indios, Puerto Rico
- 2.1 1 km SW of Santo Domingo, Puerto Rico
- 2.2 8 km SW of Guánica, Puerto Rico
- 1.8 2 km WNW of Guayanilla, Puerto Rico
- 1.9 2 km NE of Fuig, Puerto Rico
- 3.4 8 km N of Arecibo, 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.