60 km NW of Rincón, Puerto Rico

Yes. A magnitude 2.8 earthquake was recorded 60 km NW of Rincón, Puerto Rico, at 11:41 am AST on 28 August 2016 (15:41 UTC), 18 km deep.

2016-08-28 15:41 UTC · 18 km deep · released about 480 lb of TNT

Felt it? Tell USGS Check my area

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: 2016-08-28 15:41 UTC
Magnitude: M 2.8 (Md)
Depth: 18 km below the surface
Felt: no reports yet
Nearest: Aguadilla Municipio, 60 km ESE
Status: Reviewed by a seismologist

USGS · last changed by USGS 3635 days ago · we first saw it 3635 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 21 km (13 mi) from the epicentre. 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 480 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

Mineral, Virginia 2011 M 5.8 32,000× the energy of this one
Magna, Utah 2020 M 5.7 22,000× the energy of this one
Around the size people start to feel M 3.0 2× the energy of this one
This earthquake M 2.8 about 480 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 15 earthquakes of M5 or more within 50 km; the five largest:

7.1 24 km NNW of San Antonio, Puerto Rico · 48 km E of this epicentre Oct 11, 1918
6.8 94 km NE of Punta Cana, Dominican Republic · 44 km N of this epicentre Jul 27, 1917
6.4 32 km NW of Aguadilla, Puerto Rico · 31 km ESE of this epicentre Feb 10, 1920
6.3 58 km E of Punta Cana, Dominican Republic · 35 km SW of this epicentre Dec 18, 1922
6.1 15 km WNW of San Antonio, Puerto Rico · 48 km ESE of this epicentre Oct 11, 1918

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

Epicentre 18.7432, -67.6440. Map © OpenStreetMap contributors.

Nearby places

Place	Distance	Direction from the epicentre
Aguadilla Municipio, PR	60 km (37 mi)	ESE	earthquakes near Aguadilla Municipio
Rincón Municipio, PR	61 km (38 mi)	SE	earthquakes near Rincón Municipio
Aguada Municipio, PR	63 km (39 mi)	SE	earthquakes near Aguada Municipio
Moca Municipio, PR	72 km (45 mi)	SE	earthquakes near Moca Municipio
Isabela Municipio, PR	72 km (45 mi)	ESE	earthquakes near Isabela Municipio
Añasco Municipio, PR	74 km (46 mi)	SE	earthquakes near Añasco Municipio

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

Aftershocks so far

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

2.9 47 km WNW of Rincón, Puerto Rico 23:54 UTC
3.0 39 km NW of Rincón, Puerto Rico 23:46 UTC
2.7 35 km NW of Aguadilla, Puerto Rico 17:23 UTC
3.4 54 km NW of Aguadilla, Puerto Rico 06:13 UTC
2.4 32 km W of Rincón, Puerto Rico 00:09 UTC
2.7 89 km NW of San Antonio, Puerto Rico 18:25 UTC
2.9 33 km NW of San Antonio, Puerto Rico 11:08 UTC
2.8 34 km NW of Rincón, Puerto Rico 03:43 UTC
2.2 48 km WNW of Rincón, Puerto Rico 15:11 UTC
3.1 Mona Passage 01:38 UTC
2.5 36 km NW of Rincón, Puerto Rico 22:25 UTC
3.1 41 km NW of San Antonio, Puerto Rico 06:43 UTC
2.8 47 km NW of Rincón, Puerto Rico 11:10 UTC
2.7 58 km NW of Aguadilla, Puerto Rico 04:03 UTC
2.9 80 km NE of Punta Cana, Dominican Republic 03:47 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 19:22 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.