51 km NW of Rincón, Puerto Rico

2016-06-27 01:54 UTC · 78 km deep · released about 950 lb of TNT

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: 2016-06-27 01:54 UTC
Magnitude: M 3.0 (Md)
Depth: 78 km below the surface
Felt: no reports yet
Nearest: Rincón Municipio, 51 km SE
Status: Reviewed by a seismologist

USGS · last changed by USGS 3680 days ago · we first saw it 3680 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 950 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.0 would have released about 32 times as much.

Northridge, California 1994 M 6.7 350,000× the energy of this one
Mineral, Virginia 2011 M 5.8 16,000× the energy of this one
Magna, Utah 2020 M 5.7 11,000× the energy of this one
This earthquake M 3.0 about 950 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

Map loads when it scrolls into view

Epicentre 18.6676, -67.5935. Map © OpenStreetMap contributors.

Nearby places

Place	Distance	Direction
Rincón Municipio, PR	51 km (32 mi)	NW of here	earthquakes near Rincón Municipio
Aguadilla Municipio, PR	52 km (32 mi)	WNW of here	earthquakes near Aguadilla Municipio
Aguada Municipio, PR	54 km (33 mi)	NW of here	earthquakes near Aguada Municipio
Moca Municipio, PR	63 km (39 mi)	WNW of here	earthquakes near Moca Municipio
Isabela Municipio, PR	64 km (40 mi)	WNW of here	earthquakes near Isabela Municipio
Añasco Municipio, PR	65 km (40 mi)	NW of here	earthquakes near Añasco 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.

2.7 25 km NW of San Antonio, Puerto Rico 06:57 UTC
2.8 39 km E of Punta Cana, Dominican Republic 02:31 UTC
2.6 39 km NW of San Antonio, Puerto Rico 10:53 UTC
2.6 39 km NNW of San Antonio, Puerto Rico 22:11 UTC
2.9 58 km NW of San Antonio, Puerto Rico 09:39 UTC
2.7 44 km NW of Rincón, Puerto Rico 03:53 UTC
2.6 48 km NW of San Antonio, Puerto Rico 07:05 UTC
2.3 72 km ENE of Punta Cana, Dominican Republic 10:07 UTC
2.8 55 km NW of Rincón, Puerto Rico 06:31 UTC
3.0 37 km W of Rincón, Puerto Rico 05:07 UTC
2.7 76 km NW of San Antonio, Puerto Rico 05:04 UTC
2.3 9 km NW of Rincón, Puerto Rico 04:03 UTC
2.5 47 km NW of San Antonio, Puerto Rico 18:02 UTC
2.4 46 km NW of San Antonio, Puerto Rico 12:22 UTC
2.8 46 km NW of Aguadilla, Puerto Rico 11:11 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 12:07 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.