51 km ENE of Florenceville-Bristol, Canada

2019-06-23 01:39 UTC · 5.0 km deep · released about 7.6 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: 2019-06-23 01:39 UTC
Magnitude: M 1.6 (ml)
Depth: 5.0 km below the surface
Felt: no reports yet
Status: Reviewed by a seismologist

USGS · last changed by USGS 2579 days ago · we first saw it 2579 days ago

A magnitude 1.6 earthquake was recorded 51 km ENE of Florenceville-Bristol, Canada at 01:39 UTC on 2019-06-23. This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 7.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

Mineral, Virginia 2011 M 5.8 2,000,000× the energy of this one
Magna, Utah 2020 M 5.7 1,400,000× the energy of this one
Around the size people start to feel M 3.0 130× the energy of this one
This earthquake M 1.6 about 7.6 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 46.5460, -66.9569. Map © OpenStreetMap contributors.

Aftershocks so far

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

1.9 69 km ENE of Florenceville-Bristol, Canada 21:10 UTC
1.8 60 km ENE of Florenceville-Bristol, Canada 00:44 UTC
1.9 20 km E of Florenceville-Bristol, Canada 18:59 UTC
1.7 35 km NNW of Keswick Ridge, Canada 05:57 UTC
2.0 36 km NNE of Florenceville-Bristol, Canada 08:47 UTC
1.6 41 km E of Florenceville-Bristol, Canada 07:22 UTC
1.7 42 km E of Fort Fairfield, Maine 01:25 UTC
1.7 36 km NNW of Keswick Ridge, Canada 03:41 UTC
1.9 62 km ENE of Florenceville-Bristol, Canada 03:31 UTC
1.5 40 km NNW of Keswick Ridge, Canada 23:29 UTC

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