123 km NNE of Punta Cana, Dominican Republic

2018-09-08 03:57 UTC · 54 km deep · released about 630 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: 2018-09-08 03:57 UTC
Magnitude: M 2.9 (md)
Depth: 54 km below the surface
Felt: no reports yet
Status: Reviewed by a seismologist

USGS · last changed by USGS 2879 days ago · we first saw it 2879 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 630 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.9 would have released about 32 times as much.

Mineral, Virginia 2011 M 5.8 24,000× the energy of this one
Magna, Utah 2020 M 5.7 17,000× the energy of this one
Around the size people start to feel M 3.0 1.5× the energy of this one
This earthquake M 2.9 about 630 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 19.6136, -67.9466. Map © OpenStreetMap contributors.

Aftershocks so far

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

3.2 136 km NNE of Punta Cana, Dominican Republic 15:18 UTC
2.9 107 km NNE of Punta Cana, Dominican Republic 04:24 UTC
2.7 116 km NNE of Punta Cana, Dominican Republic 14:16 UTC
2.8 97 km NE of Punta Cana, Dominican Republic 08:52 UTC
2.9 107 km NNE of Punta Cana, Dominican Republic 09:30 UTC
2.9 104 km NE of Miches, Dominican Republic 08:21 UTC
2.9 106 km NE of Miches, Dominican Republic 22:22 UTC
3.1 99 km NE of Miches, Dominican Republic 17:15 UTC
3.1 87 km NNE of Punta Cana, Dominican Republic 00:24 UTC
3.3 93 km NNE of Punta Cana, Dominican Republic 13:09 UTC
3.1 85 km NNE of Punta Cana, Dominican Republic 04:14 UTC
2.6 95 km NNE of Punta Cana, Dominican Republic 00:00 UTC
3.2 111 km NNW of San Antonio, Puerto Rico 10:32 UTC
3.0 102 km NE of Punta Cana, Dominican Republic 10:10 UTC
3.2 87 km ENE of Miches, Dominican Republic 16:41 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 22:23 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.