129 km NNE of Vieques, Puerto Rico

2019-01-10 09:22 UTC · 66 km deep · released about 400 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: 2019-01-10 09:22 UTC
Magnitude: M 2.8 (md)
Depth: 66 km below the surface
Felt: no reports yet
Nearest: Dorado Municipio, 145 km SW
Status: Reviewed by a seismologist

USGS · last changed by USGS 2735 days ago · we first saw it 2735 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 400 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 38,000× the energy of this one
Magna, Utah 2020 M 5.7 27,000× the energy of this one
Around the size people start to feel M 3.0 2.4× the energy of this one
This earthquake M 2.8 about 400 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 19.5483, -65.4831. Map © OpenStreetMap contributors.

Nearby places

Place	Distance	Direction
Dorado Municipio, PR	145 km (90 mi)	NE of here	earthquakes near Dorado Municipio

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

Aftershocks so far

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

3.5 109 km NNE of Vieques, Puerto Rico 02:29 UTC
2.7 112 km N of Suárez, Puerto Rico 08:54 UTC
2.7 118 km N of Suárez, Puerto Rico 15:43 UTC
3.0 133 km NNW of Charlotte Amalie, U.S. Virgin Islands 03:35 UTC
3.1 134 km N of Charlotte Amalie, U.S. Virgin Islands 06:44 UTC
2.1 115 km NNE of San Juan, Puerto Rico 01:48 UTC
3.7 124 km NNW of Charlotte Amalie, U.S. Virgin Islands 05:41 UTC
3.2 147 km N of Charlotte Amalie, U.S. Virgin Islands 04:35 UTC
3.4 132 km N of Charlotte Amalie, U.S. Virgin Islands 01:52 UTC
3.4 141 km NNE of Vieques, Puerto Rico 01:04 UTC
3.2 126 km NNE of Vieques, Puerto Rico 22:39 UTC
3.4 114 km NNE of Vieques, Puerto Rico 18:18 UTC
3.2 141 km NNW of Charlotte Amalie, U.S. Virgin Islands 18:05 UTC
2.5 117 km N of Charlotte Amalie, U.S. Virgin Islands 07:31 UTC
3.4 124 km NNW of Charlotte Amalie, U.S. Virgin Islands 06:36 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 18:16 UTC. QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.

For this area

The largest earthquake within 50 km in our catalogue was M 4.9 on 2018-11-14 — it released about 1,700 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

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.