14 km NNE of Guaymate, Dominican Republic

2018-04-16 21:46 UTC · 94 km deep · released about 170 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: 2018-04-16 21:46 UTC
Magnitude: M 2.5 (ml)
Depth: 94 km below the surface
Felt: no reports yet
Nearest: Mayagüez Municipio, 129 km ESE
Status: Reviewed by a seismologist

USGS · last changed by USGS 2994 days ago · we first saw it 2994 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 170 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

Mineral, Virginia 2011 M 5.8 89,000× the energy of this one
Magna, Utah 2020 M 5.7 63,000× the energy of this one
Around the size people start to feel M 3.0 5.6× the energy of this one
This earthquake M 2.5 about 170 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 18.7012, -68.9172. Map © OpenStreetMap contributors.

Nearby places

Place	Distance	Direction
Mayagüez Municipio, PR	129 km (80 mi)	WNW of here	earthquakes near Mayagüez Municipio

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

Aftershocks so far

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

2.5 11 km SE of Salvaleón de Higüey, Dominican Republic 19:22 UTC
2.8 17 km SSE of La Romana, Dominican Republic 13:10 UTC
3.4 17 km SW of Salvaleón de Higüey, Dominican Republic 18:50 UTC
2.8 16 km SE of La Romana, Dominican Republic 05:32 UTC
2.5 5 km WNW of Otra Banda, Dominican Republic 08:42 UTC
2.7 11 km ESE of Santa Cruz de El Seibo, Dominican Republic 10:33 UTC
3.4 12 km SE of Guaymate, Dominican Republic 06:30 UTC
2.6 12 km ENE of La Romana, Dominican Republic 23:58 UTC
3.2 7 km NW of Otra Banda, Dominican Republic 15:06 UTC
3.6 21 km NW of Salvaleón de Higüey, Dominican Republic 16:47 UTC
3.0 17 km ENE of Miches, Dominican Republic 14:19 UTC
3.0 31 km ENE of Miches, Dominican Republic 23:07 UTC
2.6 30 km NNE of Otra Banda, Dominican Republic 03:59 UTC
2.9 28 km NE of Otra Banda, Dominican Republic 04:46 UTC
3.1 13 km SE of La Romana, Dominican Republic 06:46 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 13:26 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 4.6 on 2016-03-20 — it released about 1,400 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.