Earthquake near Santo Domingo, PR

No earthquake was likely felt in Santo Domingo in the 24 hours to 1:54 pm AST (17:54 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 2.7 earthquake was recorded 6 km (4 mi) north of Santo Domingo, PR, at 1:07 am AST on 5 August 2017 (05:07 UTC), 19 km deep.

USGS: 6 km N of Santo Domingo, Puerto Rico

20 km (12 mi) NW of Ponce, PR

1:07 am AST, Aug 5, 2017 · 2017-08-05 05:07 UTC · 19 km deep · released about 340 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: 1:07 am AST on 5 August 2017 (2017-08-05 05:07 UTC)
Where: 6 km (4 mi) north of Santo Domingo, PR · earthquakes near Santo Domingo
Magnitude: M 2.7 (md)
Depth: 19 km below the surface
Felt: no reports yet
Nearest: Adjuntas Municipio, 7 km N
Status: Reviewed by a seismologist

USGS · last changed by USGS 3385 days ago · we first saw it 3385 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

At this magnitude and depth, people at rest would likely notice it out to about 17 km (11 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 6 km, intensity II · Tallaboa Alta 10 km, intensity II · Magas Arriba 11 km, intensity II · Guayanilla 12 km, intensity II · Yauco 13 km, intensity II · Tallaboa 15 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 340 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.

Mineral, Virginia 2011 M 5.8 45,000× the energy of this one
Magna, Utah 2020 M 5.7 32,000× the energy of this one
Around the size people start to feel M 3.0 2.8× the energy of this one
This earthquake M 2.7 about 340 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

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

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 May 16, 2010

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

Map loads when it scrolls into view

Nearby places

Place	Distance	Direction from the epicentre
Adjuntas Municipio, PR	7 km (4 mi)	N	earthquakes near Adjuntas Municipio
Yauco Municipio, PR	11 km (7 mi)	WSW	earthquakes near Yauco Municipio
Peñuelas Municipio, PR	11 km (7 mi)	SSE	earthquakes near Peñuelas Municipio
Guayanilla Municipio, PR	13 km (8 mi)	SSW	earthquakes near Guayanilla Municipio
Utuado Municipio, PR	18 km (11 mi)	NNE	earthquakes near Utuado Municipio
Maricao Municipio, PR	19 km (12 mi)	WNW	earthquakes near Maricao Municipio

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

Aftershocks so far

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

2.1 4 km SW of Las Marías, Puerto Rico 05:32 UTC
2.6 4 km ENE of Mayagüez, Puerto Rico 02:19 UTC
2.4 7 km W of Mayagüez, Puerto Rico 20:07 UTC
2.1 2 km SW of Liborio Negron Torres, Puerto Rico 05:17 UTC
2.1 4 km NNW of Las Marías, Puerto Rico 12:02 UTC
2.3 1 km NW of Maria Antonia, Puerto Rico 00:03 UTC
2.2 4 km W of Las Marías, Puerto Rico 11:16 UTC
1.7 1 km SSW of Liborio Negron Torres, Puerto Rico 08:23 UTC
2.5 2 km SSW of Palmarejo, Puerto Rico 05:44 UTC
2.0 3 km WNW of Puerto Real, Puerto Rico 22:13 UTC
2.1 5 km SSW of Maricao, Puerto Rico 17:26 UTC
2.0 4 km SE of Pole Ojea, Puerto Rico 16:47 UTC
2.4 Puerto Rico region 06:05 UTC
2.1 5 km SSW of La Parguera, Puerto Rico 05:33 UTC
2.3 17 km S of Tallaboa, Puerto Rico 11:00 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 17:54 UTC. 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.